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HomeMy WebLinkAboutStamped Engineering Letter 1555 Freedom Blvd Provo, UT 84604 SOICIUS Phone: 844.357.2258 Email: solarpermits@solcius.com Structural Analysis Report Solar Panel Addition for: leifermann Residence 5960 4th St NE Fridley, MN I, Arlo Hulick, have examined the existing Stick/ Conventional framing with 2 x 8 rafters @ 16 inches on center spanning 12.9 feet that support the roof of this structure. I have performed structural calculations finding the framing to be adequate without modification for gravity and uplift loads applied to the roof by the solar panels, including snow loads applied as point loads to the roof framing, where applicable. The attachments and railing are also adequate without reinforcement for the loads imposed when installed with the attachment spacing shown in the drawings. We recommend the attachments be staggered as shown in the drawings to avoid overloading the rafters. License Expires 6.30.24 I hereby certify that this plan,specification,or report was prepared by me or under my direct supervision an hat m a Solcius Job # P-277370-23 duly Licensed r o Engineer und e f ; Prepared by Alec Okelberry the state ofM October 30, 2023 signature: License Number: 57699-6 Digitally sealed by �o 11/�� Date: Structural Calculations Rev 7.00 1/6/17 Job# P-277370-23 SOICIUS Leifermann Residence October 30, 2023 Table of Contents General Notes 3 Project Data 4 Dead Loads 5 Live Loads 6 Gravity Load Increase 6 Lateral Force Increase 6 Solar Panel Support Frame 7 Wind uplift on Mounting System 7 Lateral Forces Analysis N/A Roof Framing Analysis 8 Snow Load Calculations 11 References Attachment Pull-out Capacity R- 1 Allowable Rail Span Chart R- 2 The following reference sheets are attached and inserted behind construction plans. •Solar Panel Characteristics •Mounting System Specifications •Rail Specifications Drawings Roof Plan PV- 02 Attachment Spacing PV- 05 Racking Elevation PV- 08 Structural Calculations Rev 7.00 1/6/17 Page 2 Job# P-277370-23 SOICIUS Leifermann Residence October 30, 2023 General Notes 1)These structural calculations are not intended to be applicable for non-structural items including, but not limited to, electrical, waterproofing, or drainage. 2) All construction methods and materials shall comply with the building code listed in the design criteria. Structural Calculations Rev 7.00 1/6/17 Page 3 Job# P-277370-23 SOICIUS Leifermann Residence October 30, 2023 Project Data Project Location Fridley, MN Design Criteria: Building code: 2020 Minnesota State Building Code Design Specifications: ASCE 7-16, NDS 2018, AISC 2016 Roof snow load on solar panel 50.0 psf See snow load calcs supplement Roof snow without solar panel 50.0 psf Risk category II Basic wind speed V 109 mph Wind exposure C Roof angle 0 18.0 deg. Roof zone 2 Interior component GCpi +/-0.18 Seismic design criteria Lateral analysis is based on percentage of weight added to main force resisting system and is independent of seismic force parameters. Per IEBC §1103.2 existing design does not require retrofitting if added weight is less than 10%of original weight. Existing residence Roof area 1500.0 sf Eave to ridge distance 13.6 ft Roof rise 3.9 :12 Ridge height 16.4 ft Eave height 12 ft Mean roof height hr 14.2 ft Max Overhang 14 in Roof structure: Stick/Conventional Roof material: Asphalt Shingle Proposed PV system Solar panels: ZNSHINE ZXM7-SH108-410/M Solar panel rail system: SNAPNRACK UR-40 Bin 8 Rail Span =48" Max rail cantilever= 18 Mounting System: SNAPNRACK Speedseal - 1 lag Attachment screws: (1) 4" x 5/16" lag screw Structural Calculations Rev 7.00 1/6/17 Page 4 Job# P-277370-23 SOICIUS Leifermann Residence October 30, 2023 Dead Loads PV System Panel wt 54.0 Ibs Panel frame wt 5.2 Ibs Conductor wt 3.0 Ibs Total weight 62.2 Ibs Width 44.65 in. Length 68.03 in. Panel area 21.1 sf Panel dead load 2.95 psf Roof Type wt Covering Asphalt Shingle 5.4 psf Sheathing 7/16" OSB (See Note) 1.8 psf assumes weight of heavier Roof framing 1.0 psf plywood for purposes of Roof load 8.2 psf checking the framing Ceiling Joists 0.0 psf Mechanical, Insulation 0.0 psf Ceiling 5/8"gypsum 2.8 psf Ceiling load 2.8 psf Total roof and ceiling load 11.0 psf Floor Type wt Covering Carpet& pad 2.0 psf Underlayment 3/4" Plywood 2.5 psf Framing 10.0 psf Mechanical/ Electrical 2.0 psf Ceiling 5/8"gypsum 2.8 psf Other 0.7 psf Floor dead load 20.0 psf Walls Type wt Covering 7/16" OSB 10.0 psf Sheathing 3/8" plywood 3.0 psf Insulation 1.0 psf Framing per 1' of rafter 2.3 psf Interior surface 5/8"gypsum 3.0 psf Wall dead load 19.3 psf Structural Calculations Rev 7.00 1/6/17 Page 5 Job# P-277370-23 soliclus Leifermann Residence October 30, 2023 Live Loads Unbalanced roof snow load S 50.0 psf See snow load calculations Roof live load Lr 20.0 psf Cd = 1.25 Governing load 50.0 psf Snow load governs, based on max (load/Cd) Snow load on panel 50.0 psf See snow load calculations Gravity Load Increase Rafters Rafter length 13.6 ft. Rafter spacing 16 in. on center Roof area trib to rafter 18.1 sf Original roof load 149 Ibs Dead load only Panel trib width to rafter 24 in. # Panels on rafter(portrait) 0 # Panels on rafter(landscape) 2 Panel area trib to rafter 14.9 sf Added weight 44 Ibs % Load increase 29.5% FURTHER ANALYSIS REQUIRED (see page 8) IIEBC §1103.1 Lateral Force Increase Roof trib area to MFRS 750 sf Interior wall trib to MFRS 0 sf Floor trib area to MFRS 0 sf Interior wall weight 8 psf Wall trib area to MFRS 193 sf Interior wall wt to MFRS 0.0 kips Roof wt tributary to MFRS 8.3 kips Floor wt tributary to MFRS 0.0 kips Wall wt tributary to MFRS 3.7 kips Original wt to MFRS 12.0 kips # PV panels trib to MFRS 10.00 panels PV system weight 0.6 kips %weight increase 5.2% Lateral force increase <10%, existing MFRS is O.K. IEBC §1103.2 Structural Calculations Rev 7.00 1/6/17 Page 6 Job# P-277370-23 SOICIUS Leifermann Residence October 30, 2023 Solar Panel Support Frame Maximum span length 70 in Exp. C, 109 mph, zone 2, X48 rail, 50 psf snow,see Rail span 48 in allowable rail span chart. Attachment spacing is O.K. The mounting system is adequate for the proposed fastener spacing. Wind uplift on Mounting System Governing Load Case: 0.6D +0.6W (ASD Load Case 7, ASCE 7-16 §2.4.1) Attachment spacing Sattach 48 in. Attachment spacing Spefp 19 in. Mounting point trib area Atrib 6.3 sf Atrib=Sattach Sperp Pressure Coeff. GCp (up) -3.0 psf ASCE 7-16 29.4.4, fig. 30.3-2B, zone 2r Array edge factor yE 1.5 ASCE 7-16 29.4.4 Pressure equal. factor ya 0.4 ASCE 7-16 fig. 29.4-8 Velocty Pressure Coeff. (qh) 30.5 ASCE 7-16 29.4.4 Array trib area 205.9 sf = module area * # modules in array Mean roof height hr 14.2 ft Bldg ht adjust factor X 1.00 N/A, used only in ASCE 7-10 Topographic factor K, 1.0 ASCE 7-16, Figure 26.8-1 Design wind pressure P -55.0 psf ASCE 7-16, Eqn. 29.4-7 Dead load 2.9 psf Wind load -55.0 psf Net Uplift (0.6D +0.6W) 31.2 psf(upward) Uplift on attachment Puplift 198 Ibs Puplift= Net Uplift Atrib Attachment screws used: Use (1) 4" x 5/16" lag screw Min. embedment depth 3.25 inches Pull-out capacity per inch 133 Ibs Pull-out capacity per manufacturer, see page R-1 Tensile capacity 432 Ibs Attachment is O.K. Structural Calculations Rev 7.00 1/6/17 Page 7 Job# P-277370-23 I ICIUS Leifermann Residence October 30, 2023 Existing Rafter Analysis Beam properties,size, spacing and span Douglas fir-larch#1 & BTR assumed Rafter span L 12.90 feet Rafter spacing 16 inches Rafter size 2 x 8 Additional point loads may be considered-see Section modulus 13.14 in next sheet, "Point Loads for Rafter Analysis" Allowable stress Fb 1200 psi Beam Load Diagram Size factor CF 1.20 Repetitive use factor Cr 1.15 w2 P3 P1 P2 w2 Cd shown for individual load cases below ® w1 All other adjustment factors = 1 Loads on roof and solar panels 0 Roof dead load 8.2 psf X1 X2 X3 X4 Panel dead load 2.95 psf 0. 4 0 4 0 Roof live load 20.0 psf L/2 L/2 Wind uplift -58.9 psf Wind downforce 16.0 psf Snow load on panels 50.0 psf Assumes slippery panels Snow load on roof, no panels 50.0 psf Assumes non-slippery roof(except metal roofs) Loads prior to installation: w(plf) Cd w/Cd Point loads from solar not applied prior to install D + Lr 37.6 1.25 30.1 0.6 D +0.6 W up -40.5 1.60 -25.3 D +0.6 W do 23.7 1.60 14.8 D +S 77.6 1.15 67.5 D+S 77.6 1.15 67.5 Governing load case is determined by max w/Cd Total load before install: 1001 Ibs =wL Rafter end conditions Simple beam Moment at center span 1614 ft Ibs =wL^2/8 Check member for adequacy prior to install: Stress (=(M/S)*12"/ft): 1474 psi O.K. Adjusted allowable stress F'b 1904 psi = Fb * adjustment factors given above Loads after install Point loads applied from solar panels-where the point load is outside the span, load =0 Structural Calculations Rev 7.00 1/6/17 8 Job# P-277370-23 I ICIUS Leifermann Residence October 30, 2023 Points listed as "staggered" are on a different rafter, and therefore have no load applied load location on rafter 0.6 D +0.6 Moment Point load span (ft) trib (sf) D + Lr W up D +0.6 V D +S (ft Ibs) 1 6.5 6.3 18.7 -212.4 79.5 335.3 2163.0 Staggered 8.5 0.0 0.0 0.0 0.0 0.0 0.0 3 3.3 6.3 18.7 -212.4 79.5 335.3 1101.0 Staggered 5.3 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 0.0 0.0 Staggered 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 0.0 0.0 Staggered 0.0 0.0 0.0 0.0 0.0 0.0 9 0.0 0.0 0.0 0.0 0.0 0.0 Staggered 0.0 0.0 0.0 0.0 0.0 0.0 11 0.0 0.0 0.0 0.0 0.0 0.0 Staggered 0.0 0.0 0.0 0.0 0.0 0.0 13 0.0 0.0 0.0 0.0 0.0 0.0 Staggered 0.0 0.0 0.0 0.0 0.0 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 Staggered 0.0 0.0 0.0 0.0 0.0 0.0 Distributed loads on rafter span where not covered by solar panels w1 1.4 3.6 101.5 -109.4 64.1 209.5 282.9 w2 11.0 5.2 145.4 -156.7 91.8 300.1 3290.6 Roof dead load 6.5 0.0 0.0 0.0 0.0 0.0 0.0 Governing load case D +S Total load (Ibs) 1180 284 -691 315 1180 6837 Cd 1.15 1.25 1.60 1.60 1.15 Load/Cd 1026 227 432 197 1026 Reaction on right 530 Ibs = moment/ rafter span Reaction on left 650 Ibs =total load-reaction on left = reaction on left * span/2-sum (moments from point loads Max moment 2063 ft Ibs left of center) Reduced moment 2063 ft Ibs Applies reduction in moment due to continuity. Stress (=M/S/12"/ft): 1884 psi O.K. Adjusted allowable stress F'b 1904 psi =Fb * adjustment factors above. Structural Calculations Rev 7.00 1/6/17 9 Job# P-277370-23 Leifermann Residence solaus October 30, 2023 Roof Snow Load Calculations Ground Snow Load Pg 50.0 psf Thermal factor Ct 1.1 Flat Roof Snow Load Pf =0.7 Pg C.Ct IS 38.5 psf PS= CSPf Solar panels are assumed cold and slippery: Cs(slippery) = 0.87 ASCE 7-16 fig. 7.4-1 Ps(solar panels, slippery) = 33.4 psf Ps= CS Pf Non-metal roof without solar panels is assumed NOT slippery: Cs (not slippery) = 1.00 ASCE 7-16 fig. 7.4-1 Ps (roof, not slippery) = 38.5 psf Ps= Cs Pf Unbalanced snow load Pitch: 4:12 Is pitch< 1/2:12 or>7:12? No W (horizontal projection of eave to ridge) 12.9 ft Is rafter simply supported? Yes Snow density y 20.5 pcf ASCE 7-10, Eqn. 7.7-1 Unbal. drift ht hd 1.7 ft ASCE 7-10 fig. 7-9 Unbalanced drift surcharge 0.0 psf ASCE 7-10 7.6.1 Length of drift surcharge 8.2 ft ASCE 7-10 7.6.1 Solar array distance from ridge 3.0 ft Unbalanced snow load on rafters 50.0 psf I*Pg*Cs applied as unbalanced snow on leeward slob Unbalanced snow load on solar panels 50.0 psf I*Pg*Cs applied as unbalanced snow on leeward slob Drifting/sliding snow on low roof Balanced snow height hb 1.9 ft = balanced snow load/density Clear ht from bal. snow to high roof hc 0.0 ft Upper roof length I„ Lower roof width wiOW., Lower roof drift height hd 0.0 ft Lower roof drift max surcharge pd 0.0 psf Lower roof drift length 0.0 ft Solar array distance from upper roof 0.0 ft Lower roof drift surcharge Plow drift 0.0 psf not combined with sliding or rain surcharges Sliding snow surcharge Psliding 0.0 psf combined with balanced snow only(ASCE 7-10 7.9) Rain on snow surcharge Prain 0.0 psf combined with balanced snow only(ASCE 7-10 7.10) Snow loads used for design,considering unbalanced and/or drifting/sliding snow as needed: Ps design (solar panels) 50.0 psf Ps design (roof without solar panels) 50.0 psf 10 Maximum Rail Spans(Inches) SnapNrack UR-40 Rail Flush-Mount on 0 to 30 Foot Roof—Bin 8--Landscape Ground Exposure Wind Speed-> 95 mph 100 mph 105 mph 110 mph 115 mph 120 mph 125 mph 130 mph 140 mph 150 mph 160 mph 170 mph 180 mph 190 mph Snow Load Category Panel Angle Roof Zone-> 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 0 to Array Interior 98/98/87 98/95/84 98/91/81 98/88/78 96/86/76 93/83/74 90/81/72 87/78/70 83/74/66 79/71/62 75/68/58 72/64/54 69/61/51 67/57/48 Array Edge 95/85/75 91/82/73 88/79/70 85/76/68 82/74/66 90/72/63 78/70/61 76/68/58 72/64/54 68/59/50 65/56/47 61/52/44 58/49/42 54/47/39 7 to 20 Array Interior 99/89/83 98/86/80 96/83/78 93/90/75 90/78/73 87/75/71 85/73/69 82/71/67 78/68/62 74/64/58 71/60/54 68/56/51 65/53/48 62/50/46 Array Edge 89/77/72 86/74/70 83/72/67 90/70/65 78/67/62 75/65/59 73/63/57 71/60/55 68/56/51 64/52/47 60/48/44 56/46/41 53/43/39 50/41/37 B 20 to 27 Array Interior 99/95/92 99/92/89 99/88/86 99/85/83 99/83/81 97/90/78 94/78/76 91/76/74 86/72/70 82/69/67 79/66/63 75/62/59 72/58/56 70/55/53 Array Edge 99/82/80 95/79/77 92/77/74 89/74/72 86/72/70 83/70/68 81/68/66 79/66/63 75/61/59 71/57/55 68/53/51 65/50/48 61/47/45 58/45/43 27 to 45 Array Interior 100/100/94 100/99/91 99/95/88 96/92/85 93/89/82 90/87/90 87/94/78 85/82/76 81/78/72 77/74/69 73/71/65 70/68/61 68/65/58 65/61/55 Array Edge 92/88/82 89/85/79 1 86/82/76 83/90/74 80/77/72 78/75/69 1 76/73/68 74/71/66 70/67/61 67/64/57 63/60/53 59/56/50 56/53/47 53/50/44 451o90 Array Interior 102/102/102 102 102/102/102 102/102/102 102/101/101 102/98/98 100/95/95 98/92/92 94/88/98 90/83/83 86/80/80 83/77/77 80/74/74 77/71/71 Array Edge 102/100/100 102/96/96 99/93/93 96/90/90 93/87/87 91/85/85 89/82/82 87/90/80 83/76/76 79/73/73 75/69/69 72/67/67 70/63/63 67/60/60 0 to Array Interior 97/87/77 94/84/75 90/81/72 87/78/70 85/76/68 82/74/65 80/72/63 77/70/60 73/66/56 70/62/52 67/58/49 63/54/46 60/51/43 56/48/41 Array Edge 84/75/67 81/73/64 78/70/61 75/68/58 73/66/55 71/63/53 69/60/51 67/58/49 63/54/45 58/50/42 55/47/39 51/44/37 48/41/35 46/39/33 7 to 20 Array Interior 91/79/74 88/76/71 85/74/69 82/71/67 80/69/64 77/67/61 75/65/59 73/62/57 69/58/52 66/54/49 62/50/46 58/47/43 55/44/40 52/42/38 Array Edge 79/68/63 76/66/60 74/63/57 71/60/55 69/57/52 67/55/50 65/53/48 62/50/46 58/47/43 54/44/40 50/41/37 47/38/35 44/36/33 42/34/31 0 psf C 20 to 27 Array Interior 99/94/82 98/81/79 94/78/76 91/76/74 88/74/72 86/71/69 83/69/68 81/67/66 77/63/61 73/59/57 70/55/53 67/52/50 64/49/47 60/46/44 Array Edge 87/73/71 94/70/68 81/68/66 79/66/63 76/63/60 74/60/58 72/58/55 70/55/53 66/51/49 62/48/46 58/45/43 55/42/40 52/40/38 49/38/36 27 to 45 Array Interior 94/91/84 91/87/81 88/94/78 85/82/76 82/79/73 80/77/71 78/75/69 75/73/67 72/69/63 68/66/59 65/62/55 61/58/52 58/55/49 55/52/46 Array Edge 82/79/73 79/76/70 76/73/68 74/71/66 71/69/63 69/67/60 67/65/58 65/62/55 61/57/51 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 102/102/102 102/99/99 101/95/95 98/92/92 95/89/89 93/87/87 91/84/84 88/82/82 84/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 95/89/89 92/85/85 1 89/83/83 86/80/80 84/78/78 82/75/75 80/73/73 1 77/71/71 74/68/68 70/64/64 67/60/60 64/56/56 60/53/53 57/50/50 0 to Array Interior 91/82/73 88/79/70 85/76/68 82/74/66 80/71/63 77/69/60 75/67/57 73/65/55 69/61/51 66/56/48 62/53/45 58/50/42 55/47/39 52/44/37 Array Edge 79/71/62 76/68/59 73/66/56 71/63/53 69/60/51 67/58/49 65/55/47 62/53/45 57/49/41 54/46/39 50/43/36 47/40/34 44/38/32 42/36/30 7 to 20 Array Interior 86/74/70 83/72/67 90/69/65 77/67/62 75/65/59 73/62/56 71/59/54 69/57/52 65/53/48 61/49/45 57/46/42 53/43/39 50/41/37 47/39/35 Array Edge 74/64/58 72/61/55 69/58/52 67/55/50 65/52/48 62/50/46 59/48/44 57/46/42 53/43/39 49/40/36 46/37/34 43/35/32 41/33/30 39/31/28 D 20 to 27 Array Interior 95/79/77 92/76/74 89/74/72 86/72/70 83/69/67 81/67/65 78/65/63 76/63/60 72/58/56 69/54/52 66/51/49 62/47/46 58/45/43 55/42/41 Array Edge 82/69/67 79/66/64 77/63/61 74/60/58 72/58/55 70/55/53 68/53/51 66/51/49 61/47/45 57/44/42 53/41/39 50/39/37 47/36/35 45/34/33 27 to 45 Array Interior 89/85/79 86/82/76 83/90/74 80/77/71 77/75/69 75/73/67 73/70/65 71/69/62 68/65/58 64/60/54 60/57/50 56/53/47 53/50/45 50/47/42 Array Edge 77/74/69 74/72/66 72/69/63 69/67/60 67/64/57 65/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 45 to 90 Array Interior 102/96/96 99/93/93 96/90/90 93/87/87 91/94/94 88/82/82 86/79/79 94/77/77 80/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 90/94/84 87/81/81 94/78/78 82/75/75 80/73/73 77/71/71 75/69/69 73/67/67 69/63/63 66/59/59 62/55/55 58/52/52 55/49/49 52/46/46 0 to Array Interior 95/95/87 95/95/84 95/91/81 95/88/78 95/86/76 93/83/74 90/81/72 87/78/70 83/74/66 79/71/62 75/68/58 72/64/54 69/61/51 67/57/48 Array Edge 95/85/75 91/82/73 1 88/79/70 85/76/68 82/74/66 90/72/63 1 78/70/61 76/68/58 72/64/54 1 68/59/50 65/56/47 61/52/44 1 58/49/42 54/47/39 7 to 20 Array Interior 98/89/83 98/86/80 96/83/78 93/90/75 90/78/73 87/75/71 85/73/69 82/71/67 78/68/62 74/64/58 71/60/54 68/56/51 65/53/48 62/50/46 Array Edge 89/77/72 86/74/70 83/72/67 90/70/65 78/67/62 75/65/59 73/63/57 71/60/55 68/56/51 64/52/47 60/48/44 56/46/41 53/43/39 50/41/37 B 20 to 27 Array Interior 99/95/92 99/92/89 99/88/86 99/85/83 99/83/81 97/80/78 94/78/76 91/76/74 86/72/70 82/69/67 79/66/63 75/62/59 72/58/56 70/55/53 Array Edge 99/82/80 95/79/77 92/77/74 89/74/72 86/72/70 83/70/68 81/68/66 79/66/63 75/61/59 71/57/55 68/53/51 65/50/48 61/47/45 58/45/43 27 to 45 Array Interior 100/100/94 100/99/91 99/95/88 96/92/85 93/89/82 90/87/80 87/94/78 85/82/76 81/78/72 77/74/69 73/71/65 70/68/61 68/65/58 65/61/55 Array Edge 92/88/82 89/85/79 86/82/76 83/90/74 80/77/72 78/75/69 76/73/68 74/71/66 70/67/61 67/64/57 63/60/53 59/56/50 56/53/47 53/50/44 45 to 90 Array Interior 102/102/102 102/102/102 102/102/102 102/102/102 102/101/101 102/98/98 100/95/95 98/92/92 94/88/88 90/83/83 86/80/80 83/77/77 80/74/74 77/71/71 Array Edge 102/100/100 102/96/96 99/93/93 96/90/90 93/87/87 91/85/85 89/82/82 87/80/80 83/76/76 79/73/73 1 75/69/69 72/67/67 70/63/63 67/60/60 0 to Array Interior 95/87/77 94/94/75 90/81/72 87/78/70 85/76/68 82/74/65 80/72/63 77/70/60 73/66/56 70/62/52 67/58/49 63/54/46 60/51/43 56/48/41 Array Edge 84/75/67 81/73/64 1 78/70/61 75/68/58 73/66/55 71/63/53 69/60/51 1 67/58/49 63/54/45 58/50/42 55/47/39 51/44/37 48/41/35 1 46/39/33 7 to 20 Array Interior 91/79/74 88/76/71 85/74/:9 82/71/67 80/69/64 77/67/61 75/65/59 73/62/57 69/58/52 66/54/49 62/50/46 58/47/43 55/44/40 52/42/38 Array Edge 79/68/63 76/66/60 74/63/57 71/60/55 fi9/57/52 67/55/50 65/53/48 62/50/46 58/47/43 54/44/40 50/41/37 47/38/35 44/36/33 42/34/31 5 psf C 20 to 27 Array Interior 99/94/82 98/81/79 94/78/76 91/76/74 88/74/72 86/71/69 83/69/68 81/67/66 77/63/61 73/59/57 70/55/53 67/52/50 64/49/47 60/46/44 Array Edge 87/73/71 94/70/68 81/68/66 79/66/63 76/63/60 74/60/58 72/58/55 70/55/53 66/51/49 62/48/46 58/45/43 55/42/40 52/40/38 49/38/36 27 to 45 Array Interior 94/91/84 91/87/81 88/94/78 85/82/76 82/79/73 80/77/71 78/75/69 75/73/67 72/69/63 68/66/59 65/62/55 61/58/52 58/55/49 55/52/46 Array Edge 82/79/73 79/76/70 76/73/68 74/71/66 71/69/63 69/67/60 67/65/58 65/62/55 61/57/51 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 102/102/102 102/99/99 101/95/95 98/92/92 95/89/89 93/87/87 91/94/94 88/82/82 94/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 95/89/89 92/85/85 89/83/83 86/80/80 94/78/78 82/75/75 80/73/73 77/71/71 74/68/68 1 70/64/64 67/60/60 64/56/56 60/53/53 57/50/50 0 to Array Interior 91/82/73 88/79/70 85/76/68 82/74/66 80/71/63 77/69/60 75/67/57 73/65/55 69/61/51 66/56/48 62/53/45 58/50/42 55/47/39 52/44/37 Array Edge 79/71/62 76/68/59 73/66/56 71/63/53 69/60/51 67/58/49 1 65/55/47 62/53/45 57/49/41 54/46/39 50/43/36 47/40/34 1 44/38/32 42/36/30 7 to 20 Array Interior 86/74/70 83/72/67 80/69/65 77/67/62 75/65/59 73/62/56 71/59/54 69/57/52 65/53/48 61/49/45 57/46/42 53/43/39 50/41/37 47/39/35 Array Edge 74/64/58 72/61/55 1 69/58/52 67/55/50 65/52/48 62/50/46 59/48/44 57/46/42 53/43/39 49/40/36 46/37/34 43/35/32 41/33/30 39/31/28 D 20 to 27 Array Interior 95/79/77 92/76/74 89/74/72 86/72/70 83/69/67 81/67/65 78/65/63 76/63/60 72/58/56 69/54/52 66/51/49 62/47/46 58/45/43 55/42/41 Array Edge 82/69/67 79/66/64 77/63/61 74/60/58 72/58/55 70/55/53 68/53/51 66/51/49 61/47/45 57/44/42 53/41/39 50/39/37 47/36/35 45/34/33 27 to 45 Array Interior 89/85/79 86/82/76 83/80/74 80/77/71 77/75/69 75/73/67 73/70/65 71/69/62 68/65/58 64/60/54 60/57/50 56/53/47 53/50/45 50/47/42 Array Edge 77/74/69 74/72/66 72/69/63 69/67/60 67/64/57 65/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 45 to 90 Array Interior 102/96/96 99/93/93 96/90/90 93/97/87 91/94/94 88/92/82 86/79/79 94/77/77 80/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 90/84/84 87/81/81 84/78/78 82/75/75 80/73/73 77/71/71 75/69/69 73/67/67 69/63/63 66/59/59 1 62/55/55 58/52/52 55/49/49 52/46/46 0 to Array Interior 87/87/87 87/87/84 87/87/81 87/87/78 87/86/76 87/83/74 87/81/72 87/78/70 83/74/66 79/71/62 75/68/58 72/64/54 69/61/51 67/57/48 Array Edge 87/85/75 87/82/73 87/79/70 85/76/68 82/74/66 80/72/63 1 78/70/61 76/68/58 72/64/54 68/59/50 65/56/47 61/52/44 1 58/49/42 54/47/39 7 to 20 Array Interior 93/89/83 93/86/80 93/83/78 93/80/75 90/78/73 87/75/71 85/73/69 82/71/67 78/68/62 74/64/58 71/60/54 68/56/51 65/53/48 62/50/46 Array Edge 89/77/72 86/74/70 1 83/72/67 80/70/65 78/67/62 75/65/59 73/63/57 71/60/55 68/56/51 64/52/47 60/48/44 56/46/41 53/43/39 50/41/37 B 20 to 27 Array Interior 94/94/92 94/92/89 94/88/86 94/85/83 94/83/81 94/80/78 94/78/76 91/76/74 86/72/70 82/69/67 79/66/63 75/62/59 72/58/56 70/55/53 Array Edge 94/82/80 94/79/77 92/77/74 89/74/72 86/72/70 83/70/68 81/68/66 79/66/63 75/61/59 71/57/55 68/53/51 65/50/48 61/47/45 58/45/43 27 to 45 Array Interior 100/100/94 100/99/91 99/95/88 96/92/85 93/89/82 90/87/80 87/84/78 85/82/76 81/78/72 77/74/69 73/71/65 70/68/61 68/65/58 65/61/55 Array Edge 92/88/82 89/85/79 86/82/76 83/80/74 80/77/72 78/75/69 76/73/68 74/71/66 70/67/61 67/64/57 63/60/53 59/56/50 56/53/47 53/50/44 45 to 90 Array Interior 102/102/102 102/102/102 102/102/102 102/102/102 102/101/101 102/98/98 100/95/95 98/92/92 94/88/88 90/83/83 86/80/80 83/77/77 80/74/74 77/71/71 Array Edge 102/100/100 102/96/96 99/93/93 96/90/90 93/87/87 91/85/85 89/82/82 87/80/80 83/76/76 1 79/73/73 75/69/69 72/67/67 70/63/63 67/60/60 0 to Array Interior 87/87/77 87/94/75 87/81/72 87/78/70 85/76/68 82/74/65 80/72/63 77/70/60 73/66/56 70/62/52 67/58/49 63/54/46 60/51/43 56/48/41 Array Edge 94/75/67 81/73/64 78/70/61 75/68/58 73/66/55 71/63/53 1 69/60/51 67/58/49 63/54/45 58/50/42 55/47/39 51/44/37 1 48/41/35 46/39/33 7 to 20 Array Interior 91/79/74 88/76/71 85/74/69 82/71/67 80/69/64 77/67/61 75/65/59 73/62/57 69/58/52 66/54/49 62/50/46 58/47/43 55/44/40 52/42/38 Array Edge 79/68/63 76/66/60 1 74/63/57 71/60/55 69/57/52 67/55/50 65/53/48 62/50/46 58/47/43 54/44/40 50/41/37 47/38/35 44/36/33 42/34/31 10 psf C 20 to 27 Array Interior 94/94/82 94/81/79 94/78/76 91/76/74 88/74/72 86/71/69 83/69/68 81/67/66 77/63/61 73/59/57 70/55/53 67/52/50 64/49/47 60/46/44 Array Edge 87/73/71 94/70/68 81/68/66 79/66/63 76/63/60 74/60/58 72/58/55 70/55/53 66/51/49 62/48/46 58/45/43 55/42/40 52/40/38 49/38/36 27 to 45 Array Interior 94/91/84 91/87/81 88/84/78 85/82/76 82/79/73 80/77/71 78/75/69 75/73/67 72/69/63 68/66/59 65/62/55 61/58/52 58/55/49 55/52/46 Array Edge 1 82/79/73 79/76/70 76/73/68 74/71/66 71/69/63 69/67/60 67/65/58 65/62/55 61/57/51 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 102/102/102 102/99/99 101/95/95 98/92/92 95/89/89 93/87/87 91/94/84 88/82/82 94/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 95/89/89 92/85/85 89/83/83 86/80/80 84/78/78 82/75/75 80/73/73 77/71/71 74/68/68 70/64/64 67/60/60 64/56/5fi 60/53/53 57/50/50 0 to7 Array Interior 87/82/73 87/79/70 85/76/68 /74/66 80/71/63 77/69/60 75/67/57 /65/55 69/61/51 66/56/48 62/53/45 58/50/42 55/47/39 52/44/37 Maximum Rail Spans(Inches) SnapNrack UR-40 Rail Flush-Mount on 0 to 30 Foot Roof—Bin 8--Landscape Ground Exposure Wind Speed-> 95 mph 100 mph 105 mph 110 mph 115 mph 120 mph 125 mph 130 mph 140 mph 150 mph 160 mph 170 mph 180 mph 190 mph Snow Load Category Panel Angle Roof Zone-> 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 Array Edge 79/71/62 76/68/59 73/66/56 71/63/53 69/60/51 67/58/49 65/55/47 62/53/45 57/49/41 54/46/39 50/43/36 47/40/34 44/38/32 42/36/30 7 to 20 Array Interior 86/74/70 83/72/67 90/69/65 77/67/62 75/65/59 73/62/56 71/59/54 69/57/52 65/53/48 61/49/45 57/46/42 53/43/39 50/41/37 47/39/35 Array Edge 74/64/58 72/61/55 69/58/52 67/55/50 65/52/48 62/50/46 59/48/44 57/46/42 53/43/39 49/40/36 46/37/34 43/35/32 41/33/30 39/31/28 D 20 to 27 Array Interior 95/79/77 92/76/74 89/74/72 86/72/70 83/69/67 81/67/65 78/65/63 76/63/60 72/58/56 69/54/52 66/51/49 62/47/46 58/45/43 55/42/41 Array Edge 82/69/67 79/66/64 77/63/61 74/60/58 72/58/55 70/55/53 68/53/51 66/51/49 61/47/45 57/44/42 53/41/39 50/39/37 47/36/35 45/34/33 27 to 45 Array Interior 89/85/79 86/82/76 83/90/74 90/77/71 77/75/69 75/73/67 73/70/65 71/69/62 68/65/58 64/60/54 60/57/50 56/53/47 53/50/45 50/47/42 Array Edge 77/74/69 74/72/66 72/69/63 69/67/60 67/64/57 65/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 45 to 90 Array Interior 102/96/96 99/93/93 96/90/90 93/87/87 91/94/94 88/82/82 86/79/79 94/77/77 90/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 90/94/84 87/81/81 94/78/78 82/75/75 80/73/73 77/71/71 75/69/69 73/67/67 69/63/63 66/59/59 62/55/55 58/52/52 55/49/49 52/46/46 0 to Array Interior 82/82/82 82/82/82 82/82/81 82/82/78 82/82/76 82/82/74 82/81/72 82/78/70 82/74/66 79/71/62 75/68/58 72/64/54 69/61/51 67/57/48 Array Edge 82/82/75 82/82/73 82/79/70 82/76/68 82/74/66 80/72/63 78/70/61 76/68/58 72/64/54 68/59/50 65/56/47 61/52/44 58/49/42 54/47/39 7 to 20 Array Interior 88/88/83 88/86/80 88/83/78 88/90/75 88/78/73 87/75/71 85/73/69 82/71/67 79/68/62 74/64/58 71/60/54 68/56/51 65/53/48 62/50/46 Array Edge 88/77/72 86/74/70 83/72/67 90/70/65 78/67/62 75/65/59 73/63/57 71/60/55 69/56/51 64/52/47 60/48/44 56/46/41 53/43/39 50/41/37 B 20 to 27 Array Interior 90/90/90 90/90/89 90/88/86 90/85/83 90/83/81 90/80/78 90/78/76 90/76/74 86/72/70 82/69/67 79/66/63 75/62/59 72/58/56 70/55/53 Array Edge 90/82/80 90/79/77 90/77/74 89/74/72 86/72/70 83/70/68 81/68/66 79/66/63 75/61/59 71/57/55 68/53/51 65/50/48 61/47/45 58/45/43 27 to 45 Array Interior 100/100/94 100/99/91 99/95/88 96/92/85 93/89/82 90/87/90 87/94/78 85/82/76 81/78/72 77/74/69 73/71/65 70/68/61 68/65/58 65/61/55 Array Edge 92/88/82 89/85/79 86/82/76 83/90/74 90/77/72 78/75/69 76/73/68 74/71/66 70/67/61 67/64/57 63/60/53 59/56/50 56/53/47 53/50/44 45 to 90 Array Interior 102/102/102 102/102/102 102/102/102 102/102/102 102/101/101 102/98/98 100/95/95 98/92/92 94/88/88 90/83/83 86/80/80 83/77/77 90/74/74 77/71/71 Array Edge 102/100/100 102/96/96 1 99/93/93 96/90/90 93/87/87 91/85/85 1 89/82/82 87/80/80 83/76/76 79/73/73 75/69/69 72/67/67 70/63/63 67/60/60 0 to Array Interior 82/82/77 82/82/75 82/81/72 82/78/70 82/76/68 82/74/65 90/72/63 77/70/60 73/66/56 70/62/52 67/58/49 63/54/46 60/51/43 56/48/41 Array Edge 82/75/67 81/73/64 78/70/61 75/68/58 73/66/55 71/63/53 69/60/51 67/58/49 63/54/45 58/50/42 55/47/39 51/44/37 48/41/35 46/39/33 7 to 20 Array Interior 88/79/74 88/76/71 85/74/69 82/71/67 80/69/64 77/67/61 75/65/59 73/62/57 69/58/52 66/54/49 62/50/46 58/47/43 55/44/40 52/42/38 Array Edge 79/68/63 76/66/60 74/63/57 71/60/55 69/57/52 67/55/50 65/53/48 62/50/46 58/47/43 54/44/40 50/41/37 47/38/35 44/36/33 42/34/31 15 psf C 201o27 Array Interior 90/84/82 90/81/79 90/78/76 90/76/74 88/74/72 86/71/69 83/69/68 81/67/66 77/63/61 73/59/57 70/55/53 67/52/50 64/49/47 60/46/44 Array Edge 87/73/71 94/70/68 81/68/66 79/66/63 76/63/60 74/60/58 72/58/55 70/55/53 66/51/49 62/48/46 58/45/43 55/42/40 52/40/38 49/38/36 27 to 45 Array Interior 94/91/84 91/87/81 88/94/78 85/82/76 82/79/73 90/77/71 78/75/69 75/73/65 72/69/63 68/66/59 65/62/55 61/58/52 58/55/49 55/52/46 Array Edge 82/79/73 79/76/70 76/73/68 74/71/66 71/69/63 69/67/60 67/65/58 65/62/55 61/57/51 1 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 102/102/102 102/99/99 101/95/95 98/92/92 95/89/89 93/87/87 91/94/94 88/82/82 94/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 95/89/89 92/85/85 89/83/83 86/80/80 84/78/78 82/75/75 80/73/73 77/71/71 74/68/68 70/64/64 67/60/60 64/56/56 60/53/53 57/50/50 0 to Array Interior 82/82/73 82/79/70 82/76/68 82/74/66 80/71/63 77/69/60 75/67/57 73/65/55 69/61/51 66/56/48 62/53/45 58/50/42 55/47/39 52/44/37 Array Edge 79/71/62 76/68/59 73/66/56 71/63/53 69/60/51 67/58/49 65/55/47 62/53/45 57/49/41 54/46/39 50/43/36 47/40/34 44/38/32 42/36/30 7 to 20 Array Interior 86/74/70 83/72/67 90/69/65 77/67/62 75/65/59 73/62/56 71/59/54 69/57/52 65/53/48 61/49/45 57/46/42 53/43/39 50/41/37 47/39/35 Array Edge 74/64/51 72/61/55 69/58/52 67/55/50 65/52/48 62/50/46 59/48/44 57/46/42 53/43/39 49/40/36 46/37/34 43/35/32 41/33/30 39/31/28 D F Array Interior 91/79/77 91/76/74 89/74/72 86/72/70 83/69/67 81/67/65 78/65/63 76/63/60 72/58/56 :9/54/52 66/51/49 62/47/46 58/45/43 55/42/41 Array Edge 82/69/67 79/66/64 77/63/61 74/60/58 72/58/55 70/55/53 68/53/51 66/51/49 61/47/45 57/44/42 53/41/39 50/39/37 47/36/35 45/34/33 Array Interior 89/85/79 86/82/76 83/90/74 90/77/71 77/75/69 75/73/67 73/70/65 71/69/62 68/65/58 64/60/54 60/57/50 56/53/47 53/50/45 50/47/42 Array Edge 77/74/69 74/72/66 72/69/63 69/67/60 67/64/57 65/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 Array Interior 102/96/96 99/93/93 96/90/90 93/87/87 91/94/94 88/82/82 86/79/79 94/77/77 80/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 90/84/84 87/81/81 84/78/78 82/75/75 80/73/73 77/71/71 75/69/69 73/67/67 69/63/63 66/59/59 62/55/55 58/52/52 55/49/49 52/46/46 0 to Array Interior 77/77/77 77/77/77 77/77/77 77/77/77 77/77/76 77/77/74 77/77/72 77/77/70 77/74/66 77/71/62 75/68/58 72/64/54 69/61/51 67/57/48 Array Edge 77/77/75 77/77/73 77/77/70 77/76/68 1 77/74/66 77/72/63 77/70/61 76/68/58 1 72/64/54 68/59/50 65/56/47 61/52/44 58/49/42 54/47/39 7 to 20 Array Interior 85/85/83 85/85/80 85/83/78 85/80/75 85/78/73 85/75/71 85/73/69 82/71/67 78/68/62 74/64/58 71/60/54 68/56/51 65/53/48 62/50/46 Array Edge 85/77/72 85/74/70 1 83/72/67 80/70/65 78/67/62 75/65/59 1 73/63/57 71/60/55 68/56/51 64/52/47 60/48/44 56/46/41 53/43/39 50/41/37 B 20 to 27 Array Interior 86/86/86 86/86/86 86/86/86 86/85/83 86/83/81 86/80/78 86/78/76 86/76/74 86/72/70 82/69/67 79/66/63 75/62/59 72/58/56 70/55/53 Array Edge 86/82/80 86/79/77 86/77/74 86/74/72 86/72/70 83/70/68 81/68/66 79/66/63 75/61/59 71/57/55 68/53/51 65/50/48 61/47/45 58/45/43 27 to 45 Array Interior 98/98/94 98/98/91 98/95/88 96/92/85 93/89/82 90/87/80 87/94/78 85/82/76 81/78/72 77/74/69 73/71/65 70/68/61 68/65/58 65/61/55 Array Edge 92/88/82 89/85/79 86/82/76 83/80/74 80/77/72 78/75/69 76/73/68 74/71/66 70/67/61 67/64/57 63/60/53 59/56/50 56/53/47 53/50/44 45 to 90 Array Interior 102/102/102 102/102/102 102/102/102 102/102/102 102/101/101 102/98/98 100/95/95 98/92/92 94/88/88 90/83/83 86/80/80 83/77/77 80/74/74 77/71/71 Array Edge 102/100/100 102/96/96 99/93/93 96/90/90 93/87/87 91/85/85 89/82/82 87/80/80 83/76/76 1 79/73/73 75/69/69 72/67/67 1 70/63/63 67/60/60 0 to Array Interior 77/77/77 77/77/75 77/77/72 77/77/70 77/76/68 77/74/65 77/72/63 77/70/60 73/66/56 70/62/52 67/58/49 63/54/46 60/51/43 56/48/41 Array Edge 77/75/67 77/73/64 77/70/61 75/68/58 73/66/55 71/63/53 69/60/51 67/58/49 63/54/45 58/50/42 55/47/39 51/44/37 48/41/35 46/39/33 7 to 20 Array Interior 85/79/74 85/76/71 85/74/69 82/71/67 80/69/64 77/67/61 75/65/59 73/62/57 69/58/52 66/54/49 62/50/46 58/47/43 55/44/40 52/42/38 Array Edge 79/68/63 76/66/60 1 74/63/57 71/60/55 69/57/52 67/55/50 65/53/48 62/50/46 58/47/43 54/44/40 1 50/41/37 47/38/35 44/36/33 42/34/31 20 psf C 20 to 27 Array Interior 86/94/82 86/81/79 86/78/76 86/76/74 86/74/72 86/71/69 83/69/68 81/67/66 77/63/61 73/59/57 70/55/53 67/52/50 64/49/47 60/46/44 Array Edge 86/73/71 94/70/68 81/68/66 79/66/63 76/63/60 74/60/58 72/58/55 70/55/53 66/51/49 62/48/46 58/45/43 55/42/40 52/40/38 49/38/36 27 to 45 Array Interior 94/91/84 91/87/81 88/94/78 85/82/76 82/79/73 80/77/71 78/75/69 75/73/67 72/69/63 68/66/59 65/62/55 61/58/52 58/55/49 55/52/46 Array Edge 82/79/73 79/76/70 76/73/68 74/71/66 71/69/63 69/67/60 67/65/58 65/62/55 61/57/51 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 102/102/102 102/99/99 101/95/95 98/92/92 95/89/89 93/87/87 91/94/94 88/82/82 84/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 95/89/89 92/95/95 89/93/83 96/90/80 84/79/78 82/75/75 80/73/73 77/71/71 74/68/68 70/64/64 67/60/60 64/56/56 1 60/53/53 57/50/50 0 to Array Interior 77/77/73 77/77/70 77/76/68 77/74/66 77/71/63 77/69/60 75/67/57 73/65/55 69/61/51 66/56/48 62/53/45 58/50/42 55/47/39 52/44/37 Array Edge 77/71/62 76/68/59 73/66/56 71/63/53 69/60/51 67/58/49 65/55/47 62/53/45 57/49/41 54/46/39 50/43/36 47/40/34 44/38/32 42/36/30 7 to 20 Array Interior 86/74/70 83/72/67 80/69/65 77/67/62 75/65/59 73/62/56 71/59/54 69/57/52 65/53/48 61/49/45 57/46/42 53/43/39 50/41/37 47/39/35 Array Edge 74/64/58 72/61/55 1 69/58/52 67/55/50 65/52/48 62/50/46 59/48/44 57/46/42 53/43/39 49/40/36 1 46/37/34 43/35/32 41/33/30 39/31/28 D 20 to 27 Array Interior 88/79/77 88/76/74 88/74/72 86/72/70 83/69/67 81/67/65 78/65/63 76/63/60 72/58/56 69/54/52 66/51/49 62/47/46 58/45/43 55/42/41 Array Edge 82/69/67 79/66/64 77/63/61 74/60/58 72/58/55 70/55/53 68/53/51 66/51/49 61/47/45 57/44/42 53/41/39 50/39/37 47/36/35 45/34/33 27 to 45 Array Interior 89/85/79 86/82/76 83/80/74 80/77/71 77/75/69 75/73/67 73/70/65 71/69/62 68/65/58 64/60/54 60/57/50 56/53/47 53/50/45 50/47/42 Array Edge 77/74/69 74/72/66 72/69/63 69/67/60 67/64/57 65/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 45 to 90 Array Interior 102/96/96 99/93/93 96/90/90 93/87/87 91/84/84 88/82/82 86/79/79 84/77/77 80/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 90/94/84 87/81/81 94/78/78 82/75/75 1 80/73/73 77/71/71 75/69/69 1 73/67/67 69/63/63 66/59/59 62/55/55 58/52/52 55/49/49 1 52/46/46 0 to Array Interior 77/77/77 77/77/77 77/77/77 77/77/77 77/77/76 77/77/74 77/77/72 77/77/70 77/74/66 77/71/62 75/68/58 72/64/54 69/61/51 67/57/48 Array Edge 77/77/75 77/77/73 77/77/70 77/76/68 77/74/66 77/72/63 77/70/61 76/68/58 72/64/54 68/59/50 65/56/47 61/52/44 58/49/42 54/47/39 7 to 20 Array Interior 81/81/81 81/81/80 81/81/78 81/80/75 81/78/73 81/75/71 81/73/69 81/71/67 78/68/62 74/64/58 71/60/54 68/56/51 65/53/48 62/50/46 Array Edge 81/77/72 81/74/70 1 81/72/67 80/70/65 78/67/62 75/65/59 73/63/57 71/60/55 68/56/51 1 64/52/47 60/48/44 56/46/41 53/43/39 50/41/37 B 20 to 27 Array Interior 83/83/83 83/83/83 83/83/83 83/83/83 83/83/81 83/80/78 83/78/76 83/76/74 83/72/70 82/69/67 79/66/63 75/62/59 72/58/56 70/55/53 Array Edge 83/82/80 83/79/77 83/77/74 83/74/72 83/72/70 83/70/68 81/68/66 79/66/63 75/61/59 71/57/55 68/53/51 65/50/48 61/47/45 58/45/43 27 to 45 Array Interior 96/96/94 96/96/91 96/95/88 96/92/85 93/89/82 90/87/80 87/94/78 85/82/76 81/78/72 77/74/69 73/71/65 70/68/61 68/65/58 65/61/55 Array Edge 1 92/88/82 89/85/79 86/82/76 83/80/74 80/77/72 78/75/69 76/73/68 74/71/66 70/67/61 67/64/57 63/60/53 59/56/50 56/53/47 53/50/44 45 to 90 Array Interior 102/102/102 102/102/102 102/102/102 102/102/102 102/101/101 102/98/98 100/95/95 98/92/92 94/88/88 90/83/83 86/80/80 83/77/77 90/74/74 77/71/71 Array Edge 102/100/100 102/96/96 99/93/93 1 96/90/90 1 93/87/87 91/85/85 1 89/82/82 1 87/80/80 83/76/76 79/73/73 75/69/69 1 72/67/67 1 70/63/63 1 67/60/60 0 to7 Array Interior 77/77/77 77/77/75 77/77/72 1 77/77/70 1 77/76/68 77/74/65 77/72/63 77/70/60 73/66/56 70/62/52 67/58/49 63/54/46 60/51/43 56/48/41 Array Edge 77/75/67 77/73/64 77/70/61 75/68/58 73/66/55 71/63/53 69/60/51 67/58/49 63/54/45 58/50/42 55/47/39 51/44/37 48/41/35 1 46/39/33 Maximum Rail Spans(Inches) SnapNrack UR-40 Rail Flush-Mount on 0 to 30 Foot Roof—Bin 8--Landscape Ground Exposure Wind Speed-> 95 mph 100 mph 105 mph 110 mph 115 mph 120 mph 125 mph 130 mph 140 mph 150 mph 160 mph 170 mph 180 mph 190 mph Snow Load Category Panel Angle Roof Zone-> 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 7 to 20 Array Interior 81/79/74 81/76/71 81/74/69 81/71/67 80/69/64 77/67/61 75/65/59 73/62/57 69/58/52 66/54/49 62/50/46 58/47/43 55/44/40 52/42/38 Array Edge 79/68/63 76/66/60 74/63/57 71/60/55 69/57/52 67/55/50 65/53/48 62/50/46 59/47/43 54/44/40 50/41/37 47/38/35 44/36/33 42/34/31 25 psf C 20 to 27 Array Interior 83/83/82 83/81/79 83/78/76 83/76/74 83/74/72 83/71/69 83/69/68 81/67/66 77/63/61 73/59/57 70/55/53 67/52/50 64/49/47 60/46/44 Array Edge 83/73/71 83/70/68 81/68/66 79/66/63 76/63/60 74/60/58 72/58/55 70/55/53 66/51/49 62/48/46 58/45/43 55/42/40 52/40/38 49/38/36 27 to 45 Array Interior 94/91/84 91/87/81 88/94/78 85/82/76 82/79/73 90/77/71 78/75/69 75/73/67 72/69/63 68/66/59 65/62/55 61/58/52 58/55/49 55/52/46 Array Edge 82/79/73 79/76/70 76/73/68 74/71/66 71/69/63 69/67/60 67/65/58 65/62/55 61/57/51 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 102/102/102 102/99/99 101/95/95 98/92/92 95/89/89 93/87/87 91/94/84 88/82/82 94/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 95/89/89 92/85/85 89/83/83 86/80/80 84/78/78 82/75/75 80/73/73 77/71/71 74/68/68 70/64/64 67/60/60 64/56/56 60/53/53 57/50/50 0 to Array Interior 77/77/73 77/77/70 77/76/68 77/74/66 77/71/63 77/69/60 75/67/57 73/65/55 69/61/51 66/56/48 62/53/45 58/50/42 55/47/39 52/44/37 Array Edge 77/71/62 76/68/59 1 73/66/56 71/63/53 69/60/51 1 67/58/49 65/55/47 62/53/45 57/49/41 54/46/39 1 50/43/36 47/40/34 44/38/32 42/36/30 7 to 20 Array Interior 83/74/70 83/72/67 90/69/65 77/67/62 75/65/59 73/62/56 71/59/54 69/57/52 65/53/48 61/49/45 57/46/42 53/43/39 50/41/37 47/39/35 Array Edge 74/64/58 72/61/55 69/58/52 67/55/50 65/52/48 62/50/46 59/48/44 57/46/42 53/43/39 49/40/36 46/37/34 43/35/32 41/33/30 1 39/31/28 D 20 to 27 Array Interior 85/79/77 85/76/74 85/74/72 85/72/70 83/69/67 81/67/65 78/65/63 76/63/60 72/58/56 69/54/52 66/51/49 62/47/46 58/45/43 55/42/41 Array Edge 82/69/67 79/66/64 77/63/61 74/60/58 72/58/55 70/55/53 68/53/51 66/51/49 61/47/45 57/44/42 53/41/39 50/39/37 47/36/35 45/34/33 27 to 45 Array Interior 89/85/79 86/82/76 83/90/74 90/77/71 77/75/69 75/73/67 73/70/65 71/69/62 68/65/58 64/60/54 60/57/50 56/53/47 53/50/45 50/47/42 Array Edge 77/74/69 74/72/66 72/69/63 69/67/60 67/64/57 65/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 45 to 90 Array Interior 102/96/96 99/93/93 96/90/90 93/87/87 91/84/84 88/82/82 86/79/79 84/77/77 80/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 90/84/84 87/81/81 84/78/78 82/75/75 80/73/73 77/71/71 75/69/69 73/67/67 69/63/63 66/59/59 62/55/55 58/52/52 55/49/49 52/46/46 0 to Array Interior 77/77/77 77/77/77 77/77/77 77/77/77 77/77/76 77/77/74 77/77/72 77/77/75 77/74/66 77/71/62 75/68/58 72/64/54 69/61/51 67/57/48 Array Edge 77/77/75 77/77/73 1 77/77/70 77/76/68 77/74/66 77/72/63 77/70/61 76/68/58 72/64/54 68/59/50 65/56/47 61/52/44 58/49/42 54/47/39 7 to 20 Array Interior 79/79/79 79/79/79 79/79/78 79/79/75 79/78/73 79/75/71 79/73/69 79/71/67 78/68/62 74/64/58 71/60/54 68/56/51 65/53/48 62/50/46 Array Edge 79/77/72 79/74/70 79/72/67 79/70/65 78/67/62 75/65/59 73/63/57 71/60/55 68/56/51 64/52/47 60/48/44 56/46/41 53/43/39 50/41/37 B 20 to 27 Array Interior 80/80/80 80/80/80 80/80/80 80/80/80 80/80/80 90/90/78 90/78/76 90/76/74 80/72/70 80/69/67 79/66/63 75/62/59 72/58/56 70/55/53 Array Edge 80/80/80 90/79/77 90/77/74 90/74/72 80/72/70 90/70/68 80/68/66 79/66/63 75/61/59 71/57/55 68/53/51 65/50/48 61/47/45 58/45/43 27 to 45 Array Interior 94/94/94 94/94/91 94/94/88 94/92/85 93/89/82 90/87/90 87/94/78 85/82/76 81/78/72 77/74/69 73/71/65 70/68/61 68/65/58 65/61/55 Array Edge 92/88/82 89/85/79 86/82/76 83/90/74 80/77/72 78/75/69 76/73/68 74/71/66 70/67/61 67/64/57 63/60/53 59/56/50 56/53/47 53/50/44 45 to 90 Array Interior 102/102/102 102/102/102 102/102/102 102/102/102 102/101/101 102/98/98 100/95/95 98/92/92 94/88/88 90/83/83 86/80/80 83/77/77 80/74/74 77/71/71 Array Edge 102/100/100 102/96/96 99/93/93 96/90/90 93/87/87 91/85/85 89/82/82 87/90/80 83/76/76 79/73/73 75/69/69 72/67/67 70/63/63 67/60/60 0 to Array Interior 77/77/77 77/77/75 77/77/72 77/77/70 77/76/68 77/74/65 77/72/63 77/70/60 73/66/56 70/62/52 67/58/49 63/54/46 60/51/43 56/48/41 Array Edge 77/75/67 77/73/64 77/70/61 75/68/58 73/66/55 1 71/63/53 69/60/51 67/58/49 63/54/45 58/50/42 55/47/39 1 51/44/37 48/41/35 46/39/33 7 to 20 Array Interior 79/79/74 79/76/71 79/74/69 79/71/67 79/69/64 77/67/61 75/65/59 73/62/57 69/58/52 66/54/49 62/50/46 58/47/43 55/44/40 52/42/38 Array Edge 79/68/63 76/66/60 1 74/63/57 71/60/55 69/57/52 67/55/50 65/53/48 62/50/46 58/47/43 54/44/40 50/41/37 47/38/35 44/36/33 42/34/31 30 psf C 20 to 27 Array Interior 80/80/80 90/90/79 90/78/76 90/76/74 80/74/72 90/71/69 90/69/68 90/67/66 77/63/61 73/59/57 70/55/53 67/52/50 64/49/47 60/46/44 Array Edge 80/73/71 90/70/68 80/68/66 79/66/63 76/63/60 74/60/58 72/58/55 70/55/53 66/51/49 62/48/46 58/45/43 55/42/40 52/40/38 49/38/36 27 to 45 Array Interior 94/91/84 91/87/81 88/94/78 85/82/76 82/79/73 90/77/71 78/75/69 75/73/67 72/69/63 68/66/59 65/62/55 61/58/52 58/55/49 55/52/46 Array Edge 82/79/73 79/76/70 76/73/68 74/71/66 71/69/63 69/67/60 67/65/58 65/62/55 61/57/51 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 102/102/102 102/99/99 101/95/95 98/92/92 95/89/89 93/87/87 91/94/84 88/82/82 84/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 95/89/89 92/85/85 89/83/83 86/80/80 84/78/78 82/75/75 80/73/73 77/71/71 74/68/68 1 70/64/64 67/60/60 64/56/56 60/53/53 57/50/50 0 to Array Interior 77/77/73 77/77/70 77/76/68 77/74/66 77/71/63 77/69/60 75/67/57 73/65/55 69/61/51 66/56/48 62/53/45 58/50/42 55/47/39 52/44/37 Array Edge 77/71/62 76/68/59 73/66/56 71/63/53 69/60/51 67/58/49 1 65/55/47 62/53/45 57/49/41 54/46/39 50/43/36 47/40/34 44/38/32 42/36/30 7 to 20 Array Interior 80/74/70 80/72/67 80/69/65 77/67/62 75/65/59 73/62/56 71/59/54 69/57/52 65/53/48 61/49/45 57/46/42 53/43/39 50/41/37 47/39/35 Array Edge 74/64/58 72/61/55 1 69/58/52 67/55/50 65/52/48 62/50/46 59/48/44 1 57/46/42 53/43/39 49/40/36 46/37/34 43/35/32 41/33/30 1 39/31/28 D 20 to 27 Array Interior 82/79/77 82/76/74 82/74/72 82/72/70 82/69/67 81/67/65 78/65/63 76/63/60 72/58/56 69/54/52 66/51/49 62/47/46 58/45/43 55/42/41 Array Edge 82/69/67 79/66/64 77/63/61 74/60/58 72/58/55 70/55/53 68/53/51 66/51/49 61/47/45 57/44/42 53/41/39 50/39/37 47/36/35 45/34/33 27 to 45 Array Interior 89/85/79 86/82/76 83/80/74 80/77/71 77/75/69 75/73/67 73/70/65 71/69/62 68/65/58 64/60/54 60/57/50 56/53/47 53/50/45 50/47/42 Array Edge 77/74/69 74/72/66 72/69/63 69/67/60 67/64/57 65/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 45 to 90 Array Interior 102/96/96 99/93/93 96/90/90 93/87/87 91/84/84 88/82/82 86/79/79 94/77/77 80/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 1 90/84/84 87/81/81 84/78/78 82/75/75 80/73/73 77/71/71 75/69/69 73/67/67 69/63/63 66/59/59 62/55/55 58/52/52 55/49/49 52/46/46 0 to Array Interior 74/74/74 74/74/74 74/74/74 74/74/74 74/74/74 74/74/74 74/74/72 74/74/70 74/74/66 74/71/62 74/68/58 72/64/54 69/61/51 67/57/48 Array Edge 74/74/74 74/74/73 74/74/70 74/74/68 74/74/66 74/72/63 74/70/61 74/68/58 72/64/54 68/59/50 65/56/47 61/52/44 58/49/42 54/47/39 7 to 20 Array Interior 76/76/76 76/76/76 76/76/76 76/76/75 76/76/73 76/75/71 76/73/69 76/71/67 76/68/62 74/64/58 71/60/54 68/56/51 65/53/48 62/55/46 Array Edge 76/76/72 76/74/70 1 76/72/67 76/70/65 76/67/62 75/65/59 73/63/57 71/60/55 68/56/51 64/52/47 60/48/44 56/46/41 53/43/39 50/41/37 B 20 to 27 Array Interior 79/78/78 78/78/78 78/78/78 78/78/78 78/78/78 78/78/78 78/78/76 78/76/74 78/72/70 78/69/67 78/66/63 75/62/59 72/58/56 70/55/53 Array Edge 79/78/78 78/78/77 78/77/74 78/74/72 78/72/70 78/70/68 78/68/66 78/66/63 75/61/59 71/57/55 68/53/51 65/50/48 61/47/45 58/45/43 27 to 45 Array Interior 92/92/92 92/92/91 92/92/88 92/92/85 92/89/82 90/87/80 87/94/78 85/82/76 81/78/72 77/74/69 73/71/65 70/68/61 68/65/58 65/61/55 Array Edge 92/88/82 89/85/79 86/82/76 83/80/74 80/77/72 78/75/69 76/73/68 74/71/66 70/67/61 67/64/57 63/60/53 59/56/50 56/53/47 53/50/44 45 to 90 Array Interior 102/102/102 102/102/102 102/102/102 102/102/102 102/101/101 102/98/98 100/95/95 98/92/92 94/88/88 90/83/83 86/80/80 83/77/77 80/74/74 77/71/71 Array Edge 102/100/100 102/96/96 99/93/93 96/90/90 93/87/87 91/85/85 89/82/82 87/80/90 83/76/76 1 79/73/73 75/69/69 72/67/67 70/63/63 67/60/60 0 to Array Interior 74/74/74 74/74/74 74/74/72 74/74/70 74/74/68 74/74/65 74/72/63 74/70/60 73/66/56 70/62/52 67/58/49 63/54/46 60/51/43 56/48/41 Array Edge 74/74/67 74/73/64 74/70/fi1 74/68/58 73/66/55 71/63/53 69/60/51 67/58/49 63/54/45 58/50/42 55/47/39 51/44/37 48/41/35 46/39/33 7 to 20 Array Interior 76/76/74 76/76/71 76/74/69 76/71/67 76/69/64 76/67/61 75/65/59 73/62/57 69/58/52 66/54/49 62/50/46 58/47/43 55/44/40 52/42/38 Array Edge 76/68/63 76/66/60 1 74/63/57 71/60/55 69/57/52 67/55/50 65/53/48 1 62/50/46 58/47/43 54/44/40 50/41/37 47/38/35 44/36/33 42/34/31 35 psf C 20 to 27 Array Interior 78/78/78 78/78/78 78/78/76 78/76/74 78/74/72 78/71/69 78/69/68 78/67/66 77/63/61 73/59/57 70/55/53 67/52/50 64/49/47 60/46/44 Array Edge 78/73/71 78/70/68 78/68/66 78/66/63 76/63/60 74/60/58 72/58/55 70/55/53 66/51/49 62/48/46 58/45/43 55/42/40 1 52/40/38 49/38/36 27 to 45 Array Interior 92/91/84 91/87/81 88/94/78 85/82/76 82/79/73 80/77/71 78/75/69 75/73/67 72/69/63 68/66/59 65/62/55 61/58/52 58/55/49 55/92/46 Array Edge 82/79/73 79/76/70 76/73/68 74/71/66 71/69/63 69/67/60 67/65/58 65/62/55 61/57/51 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 102/102/102 102/99/99 101/95/95 98/92/92 95/89/89 93/87/87 91/84/94 88/82/82 94/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 95/89/89 92/85/85 89/83/83 86/80/80 84/78/78 82/75/75 80/73/73 77/71/71 74/68/68 1 70/64/64 67/60/60 64/56/56 60/53/53 57/50/50 0 to Array Interior 76/76/73 76/76/70 76/76/68 76/74/66 76/71/63 76/69/60 75/67/57 73/65/55 69/61/51 66/56/48 62/53/45 58/50/42 55/47/39 52/44/37 Array Edge 76/71/62 76/68/59 73/66/56 71/63/53 69/60/51 67/58/49 65/55/47 62/53/45 57/49/41 54/46/39 50/43/36 47/40/34 44/38/32 42/36/30 7 to 20 Array Interior 78/74/70 78/72/67 78/69/65 77/67/62 75/65/59 73/62/56 71/59/54 69/57/52 65/53/48 61/49/45 57/46/42 53/43/39 50/41/37 47/39/35 Array Edge 74/64/58 72/61/55 1 69/58/52 67/55/50 65/52/48 62/50/46 59/48/44 1 57/46/42 53/43/39 49/40/36 46/37/34 43/35/32 41/33/30 39/31/28 D 20 to 27 Array Interior 90/79/77 80/76/74 80/74/72 80/72/70 80/69/67 80/67/65 78/65/63 76/63/60 72/58/56 69/54/52 66/51/49 62/47/46 58/45/43 55/42/41 Array Edge 90/69/67 79/66/64 77/63/61 74/60/58 72/58/55 70/55/53 68/53/51 66/51/49 61/47/45 57/44/42 53/41/39 50/39/37 47/36/35 45/34/33 27 to 45 Array Interior 89/85/79 86/82/76 83/80/74 80/77/71 77/75/69 75/73/67 73/70/65 71/69/62 68/65/58 64/60/54 60/57/50 56/53/47 53/50/45 50/45/42 Array Edge 77/74/69 74/72/66 72/69/63 69/67/60 67/64/57 65/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 45 to 90 Array Interior 102/96/96 99/93/93 96/90/90 93/87/87 91/94/94 88/82/82 86/79/79 94/77/77 80/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 1 90/94/84 87/81/81 94/78/78 82/75/75 80/73/73 77/71/71 75/69/69 73/67/67 1 69/63/63 1 66/59/59 62/55/55 58/52/52 55/49/49 52/46/46 0 to Array Interior 72/72/72 72/72/72 72/72/72 72/72/72 72/72/72 72/72/72 72/72/72 72/72/70 72/72/66 72/71/62 72/68/58 72/64/54 69/61/51 67/57/48 Array Edge 72/72/72 72/72/72 72/72/70 72/72/68 72/72/66 72/72/63 72/70/61 72/68/58 72/64/54 68/59/50 65/56 47 61/52/44 58/49/42 54/47/39 71n 7n Array Interior 74/74/74 74/74/74 74/74/74 74/74/74 74/74/73 74/74/71 74/73/69 74/71/67 74/68/62 74/64/58 71/60/54 68/56/51 65/53/48 62/50/46 Maximum Rail Spans(Inches) SnapNrack UR-40 Rail Flush-Mount on 0 to 30 Foot Roof—Bin 8--Landscape Ground Exposure Wind Speed-> 95 mph 100 mph 105 mph 110 mph 115 mph 120 mph 125 mph 130 mph 140 mph 150 mph 160 mph 170 mph 180 mph 190 mph Snow Load Category Panel Angle Roof Zone-> 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 Array Edge 74/74/72 74/74/70 74/72/67 74/70/65 74/67/62 74/65/59 73/63/57 71/60/55 68/56/51 64/52/47 60/48/44 56/46/41 53/43/39 50/41/37 B 20 to 27 Array Interior 76/76/76 76/76/76 76/76/76 76/76/76 76/76/76 76/76/76 76/76/76 76/76/74 76/72/70 76/69/67 76/66/63 75/62/59 72/58/56 70/55/53 Array Edge 76/76/76 76/76/76 76/76/74 76/74/72 76/72/70 76/70/68 76/68/66 76/66/63 75/61/59 71/57/55 68/53/51 65/50/48 61/47/45 58/45/43 27 to 45 Array Interior 90/90/90 90/90/90 90/90/88 90/90/85 90/89/82 90/87/90 87/94/78 85/82/76 81/78/72 77/74/69 73/71/65 70/68/61 68/65/58 65/61/55 Array Edge 90/88/82 89/85/79 86/82/76 83/90/74 80/77/72 78/75/69 76/73/68 74/71/66 70/67/61 67/64/57 63/60/53 59/56/50 56/53/47 53/50/44 45 to 90 Array Interior 102/102/102 102/102/102 102/102/102 102/102/102 102/101/101 102/98/98 100/95/95 98/92/92 94/88/98 90/83/83 86/80/80 83/77/77 80/74/74 77/71/71 Array Edge 102/100/100 102/96/96 99/93/93 96/90/90 93/87/87 91/85/85 89/82/82 87/80/80 83/76/76 79/73/73 75/69/69 72/67/67 70/63/63 67/60/60 0 to Array Interior 72/72/72 72/72/72 72/72/72 72/72/70 72/72/68 72/72/65 72/72/63 72/70/60 72/66/56 70/62/52 67/58/49 63/54/46 60/51/43 56/48/41 Array Edge 72/72/67 72/72/64 72/70/61 72/68/58 72/66/55 71/63/53 69/60/51 67/58/49 63/54/45 58/50/42 55/47/39 51/44/37 48/41/35 46/39/33 7 to 20 Array Interior 74/74/74 74/74/71 74/74/69 74/71/67 74/69/64 74/67/61 74/65/59 73/62/57 69/58/52 66/54/49 62/50/46 58/47/43 55/44/40 52/42/38 Array Edge 74/68/63 74/66/60 74/63/57 71/60/55 69/57/52 67/55/50 65/53/48 62/50/46 58/47/43 54/44/40 50/41/37 47/38/35 44/36/33 42/34/31 40 psf C 20 to 27 Array Interior 76/76/76 76/76/76 76/76/76 76/76/74 76/74/72 76/71/69 76/69/68 76/67/66 76/63/61 73/59/57 70/55/53 67/52/50 64/49/47 60/46/44 Array Edge 76/73/71 76/70/68 76/68/66 76/66/63 76/63/60 74/60/58 72/58/55 70/55/53 66/51/49 62/48/46 58/45/43 55/42/40 52/40/38 49/38/36 27 to 45 Array Interior 90/90/84 90/87/81 88/94/78 85/82/76 82/79/73 90/77/71 78/75/69 75/73/67 72/69/63 68/66/59 65/62/55 61/58/52 58/55/49 55/52/46 Array Edge 82/79/73 79/76/70 76/73/68 74/71/66 71/69/63 69/67/60 67/65/58 65/62/55 61/57/51 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 102/102/102 102/99/99 101/95/95 98/92/92 95/89/89 93/87/87 91/84/84 88/82/82 84/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 95/89/89 92/85/85 89/83/83 86/80/80 84/78/78 82/75/75 80/73/73 77/71/71 74/68/68 70/64/64 67/60/60 64/56/56 60/53/53 57/50/50 0 to Array Interior 74/74/73 74/74/70 74/74/68 74/74/66 74/71/63 74/69/60 74/67/57 73/65/55 69/61/51 66/56/48 62/53/45 58/50/42 55/47/39 52/44/37 Array Edge 74/71/62 74/68/59 73/66/56 71/63/53 69/60/51 1 67/58/49 65/55/47 62/53/45 57/49/41 54/46/39 50/43/36 47/40/34 44/38/32 42/36/30 7 to 20 Array Interior 76/74/70 76/72/67 76/69/65 76/67/62 75/65/59 73/62/56 71/59/54 69/57/52 65/53/48 61/49/45 57/46/42 53/43/39 50/41/37 47/39/35 Array Edge 74/64/58 72/61/55 69/58/52 67/55/50 65/52/48 62/50/46 59/48/44 57/46/42 53/43/39 49/40/36 46/37/34 43/35/32 41/33/30 39/31/28 D 20 to 27 Array Interior 79/78/77 78/76/74 78/74/72 78/72/70 78/69/67 78/67/65 78/65/63 76/63/60 72/58/56 69/54/52 66/51/49 62/47/46 58/45/43 55/42/41 Array Edge 79/69/67 78/66/64 77/63/61 74/60/58 72/58/55 70/55/53 68/53/51 66/51/49 61/47/45 57/44/42 53/41/39 50/39/37 47/36/35 45/34/33 27 to 45 Array Interior 89/85/79 86/82/76 83/90/74 90/77/71 77/75/69 75/73/67 73/70/65 71/69/62 68/65/58 64/60/54 60/57/50 56/53/47 53/50/45 50/47/42 Array Edge 77/74/69 74/72/66 72/69/63 69/67/60 67/64/57 65/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 45 to 90 Array Interior 102/96/96 99/93/93 96/90/90 93/87/87 91/94/94 88/82/82 86/79/79 94/77/77 80/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 90/94/84 87/81/81 94/78/78 82/75/75 80/73/73 77/71/71 75/69/69 73/67/67 69/63/63 66/59/59 62/55/55 58/52/52 55/49/49 52/46/46 Maximum Rail Spans(Inches) SnapNrack UR-40 Rail Flush-Mount on 0 to 30 Foot Roof—Bin 8—Landscape Ground Exposure Wind Speed-> 95 mph 100 mph 105 mph 110 mph 115 mph 120 mph 125 mph 130 mph 140 mph 150 mph 160 mph 170 mph 180 mph 190 mph Snow Load Category Panel Angle Roof Zone-> 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 0 to Array Interior 70/70/70 70/70/70 70/70/70 70/70/70 70/70/70 70/70/70 70/70/70 70/70/70 70/70/66 70/70/62 70/68/58 70/64/54 69/61/51 67/57/48 Array Edge 70/70/70 70/70/70 70/70/70 70/70/68 70/70/66 70/70/63 70/70/61 70/68/58 70/64/54 68/59/50 65/56/47 61/52/44 58/49/42 54/47/39 7 to 20 Array Interior 72/72/72 72/72/72 72/72/72 72/72/72 72/72/72 72/72/71 72/72/69 72/71/67 72/68/62 72/64/58 71/60/54 68/56/51 65/53/48 62/50/46 Array Edge 72/72/72 72/72/70 72/72/67 72/70/65 72/67/62 72/65/59 72/63/57 71/60/55 68/56/51 64/52/47 60/48/44 56/46/41 53/43/39 50/41/37 B 20 to 27 Array Interior 74/74/74 74/74/74 74/74/74 74/74/74 74/74/74 74/74/74 74/74/74 74/74/74 74/72/70 74/69/67 74/66/63 74/62/59 72/58/56 70/55/53 Array Edge 74/74/74 74/74/74 74/74/74 74/74/72 74/72/70 74/70/68 74/68/66 74/66/63 74/61/59 71/57/55 68/53/51 65/50/48 61/47/45 58/45/43 27 to 45 Array Interior 89/89/89 89/89/89 89/89/88 89/89/85 89/89/82 89/87/90 87/94/78 85/82/76 81/78/72 77/74/69 73/71/65 70/68/61 68/65/58 65/61/55 Array Edge 89/88/82 89/85/79 86/82/76 83/90/74 90/77/72 78/75/69 76/73/68 74/71/66 70/67/61 67/64/57 63/60/53 59/56/50 56/53/47 53/50/44 45 to 90 Array Interior 102/102/102 102/102/102 102/102/102 102/102/102 102/101/101 102/98/98 100/95/95 98/92/92 94/88/88 90/83/83 86/80/80 83/77/77 80/74/74 77/71/71 Array Edge 102/100/100 102/96/96 1 99/93/93 96/90/90 93/87/87 91/85/85 1 89/82/82 87/80/80 83/76/76 1 79/73/73 75/69/69 72/67/67 70/63/63 67/60/60 0 to Array Interior 70/70/70 70/70/70 70/70/70 70/70/70 70/70/68 70/70/65 70/70/63 70/70/60 70/66/56 70/62/52 67/58/49 63/54/46 60/51/43 56748/41 Array Edge 70/70/67 70/70/64 70/70/61 70/68/58 70/66/55 70/63/53 69/60/51 67/58/49 63/54/45 58/50/42 55/47/39 51/44/37 48/41/35 46/39/33 7 to 20 Array Interior 72/72/72 72/72/71 72/72/69 72/71/67 72/69/64 72/67/61 72/65/59 72/62/57 69/58/52 66/54/49 62/50/46 58/47/43 55/44/40 52/42/38 Array Edge 72/68/63 72/66/60 72/63/57 71/60/55 69/57/52 67/55/50 65/53/48 62/50/46 58/47/43 54/44/40 50/41/37 47/38/35 44/36/33 42/34/31 45 psf C 20 to 27 Array Interior 74/74/74 74/74/74 74/74/74 74/74/74 74/74/72 74/71/69 74/69/68 74/67/66 74/63/61 73/59/57 70/55/53 67/52/50 64/49/47 60/46/44 Array Edge 74/73/71 74/70/68 74/68/66 74/66/63 74/63/60 74/60/58 72/58/55 70/55/53 66/51/49 62/48/46 58/45/43 55/42/40 52/40/38 49/38/36 27 to 45 Array Interior 89/89/84 89/87/81 88/94/78 85/82/76 82/79/73 90/77/71 78/75/69 75/73/67 72/69/63 68/66/59 65/62/55 61/58/52 58/55/49 55/52/46 Array Edge 82/79/73 79/76/70 76/73/68 74/71/66 71/69/63 69/67/60 67/65/58 65/62/55 61/57/51 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 102/102/102 102/99/99 101/95/95 98/92/92 95/89/89 93/87/87 91/84/84 88/82/82 94/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 95/89/89 92/85/85 89/83/83 86/80/80 84/78/78 82/75/75 80/73/73 77/71/71 74/68/68 70/64/64 67/60/60 64/56/56 60/53/53 57/50/50 0 to Array Interior 72/72/72 72/72/70 72/72/68 72/72/66 72/71/63 72/69/60 72/67/57 72/65/55 69/61/51 66/56/48 62/53/45 58/50/42 55/47/39 52/44/37 Array Edge 72/71/62 72/68/59 1 72/66/56 71/63/53 69/60/51 67/58/49 65/55/47 62/53/45 57/49/41 54/46/39 50/43/36 47/40/34 44/38/32 42/36/30 7 to 20 Array Interior 74/74/70 74/72/67 74/69/65 74/67/:2 74/65/59 73/62/56 71/59/54 69/57/52 65/53/48 61/49/45 57/46/42 53/43/39 50/41/37 47/39/35 Array Edge 74/64/58 72/61/55 69/58/52 67/55/50 65/52/48 62/50/46 59/48/44 57/46/42 53/43/39 49/40/36 46/37/34 43/35/32 41/33/30 39/31/28 D 20 to 27 Array Interior 76/76/76 76/76/74 76/74/72 76/72/70 76/69/67 76/67/65 76/65/63 76/63/60 72/58/56 69/54/52 66/51/49 62/47/46 58/45/43 55/42/41 Array Edge 76/69/67 76/66/64 76/63/61 74/60/58 72/58/55 70/55/53 68/53/51 66/51/49 61/47/45 57/44/42 53/41/39 50/39/37 47/36/35 45/34/33 27 to 45 Array Interior 89/85/79 86/82/76 83/90/74 90/77/71 77/75/69 75/73/67 73/70/65 71/69/62 69/65/58 64/60/54 60/57/50 56/53/47 53/50/45 50/47/42 Array Edge 77/74/69 74/72/66 72/69/63 69/67/60 67/64/57 65/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 45 to 90 Array Interior 102/96/96 99/93/93 96/90/90 93/87/87 91/84/84 88/82/82 86/79/79 84/77/77 80/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 90/84/84 87/81/81 84/78/78 82/75/75 80/73/73 77/71/71 75/69/69 73/67/67 69/63/63 1 66/59/59 62/55/55 58/52/52 55/49/49 52/46/46 0 to Array Interior 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/66 67/67/62 67/67/58 67/64/54 67/61/51 67/57/48 Array Edge 67/67/67 67/67/67 1 67/67/67 67/67/67 67/67/66 67/67/63 67/67/61 67/67/58 67/64/54 67/59/50 65/56/47 61/52/44 58/49/42 54/47/39 7 to 20 Array Interior 70/70/70 70/70/70 70/70/70 70/70/70 70/70/70 70/70/70 70/70/69 70/70/67 70/68/62 70/64/58 70/60/54 68/56/51 65/53/48 62/50/46 Array Edge 70/70/70 70/70/70 70/70/67 70/70/65 70/67/62 70/65/59 70/63/57 70/60/55 68/56/51 64/52/47 60/48/44 56/46/41 53/43/39 50/41/37 B 20 to 27 Array Interior 72/72/72 72/72/72 72/72/72 72/72/72 72/72/72 72/72/72 72/72/72 72/72/72 72/72/70 72/69/67 72/66/63 72/62/59 72/58/56 70/55/53 Array Edge 72/72/72 72/72/72 72/72/72 72/72/72 72/72/70 72/70/68 72/68/66 72/66/63 72/61/59 71/57/55 68/53/51 65/50/48 61/47/45 58/45/43 27 to 45 Array Interior 87/87/87 87/87/87 87/87/87 87/87/85 87/87/82 87/87/90 87/94/78 85/82/76 81/78/72 77/74/69 73/71/65 70/68/61 68/65/58 65/61/55 Array Edge 87/87/82 87/85/79 86/82/76 83/90/74 80/77/72 78/75/69 76/73/68 74/71/66 70/67/61 67/64/57 63/60/53 59/56/50 56/53/47 53/50/44 45 to 90 Array Interior 102/102/102 102/102/102 102/102/102 102/102/102 102/101/101 102/98/98 100/95/95 98/92/92 94/88/88 90/83/83 86/80/80 83/77/77 80/74/74 77/71/71 Array Edge 102/100/100 102/96/96 99/93/93 96/90/90 93/87/87 91/85/85 89/82/82 87/80/90 83/76/76 79/73/73 75/69/69 72/67/67 70/63/63 67/60/60 0 to Array Interior 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/65 67/67/63 67/67/60 67/66/56 67/62/52 67/58/49 63/54/46 60/51/43 56/48/41 Array Edge 67/67/67 67/67/64 1 67/67/61 67/67/58 67/66/55 67/63/53 1 67/60/51 67/58/49 63/54/45 1 58/50/42 55/47/39 51/44/37 1 48/41/35 46/39/33 7 to 20 Array Interior 70/70/70 70/70/70 70/70/69 70/70/67 70/69/64 70/67/61 70/65/59 70/62/57 69/58/52 66/54/49 62/50/46 58/47/43 55/44/40 52/42/38 Array Edge 70/68/63 70/66/60 70/63/57 70/60/55 69/57/52 67/55/50 65/53/48 62/50/46 58/47/43 54/44/40 50/41/37 47/38/35 44/36/33 42/34/31 50 psf C 20 to 27 Array Interior 72/72/72 72/72/72 72/72/72 72/72/72 72/72/72 72/71/69 72/69/68 72/67/66 72/63/61 72/59/57 70/55/53 67/52/50 64/49/47 60/46/44 Array Edge 72/72/71 72/70/68 72/68/66 72/66/63 72/63/60 72/60/58 72/58/55 70/55/53 66/51/49 62/48/46 58/45/43 55/42/40 52/40/38 49/38/36 27 to 45 Array Interior 87/87/84 87/87/81 87/84/78 85/82/76 82/79/73 80/77/71 78/75/69 75/73/67 72/69/63 68/66/59 65/62/55 61/58/52 58/55/49 55/52/46 Array Edge 82/79/73 79/76/70 76/73/68 74/71/66 71/69/63 69/67/60 67/65/58 65/62/55 61/57/51 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 102/102/102 102/99/99 101/95/95 98/92/92 95/89/89 93/87/87 91/94/94 88/82/82 84/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 95/89/89 92/85/85 89/83/83 86/80/80 84/78/78 82/75/75 90/73/73 77/71/71 74/68/68 70/64/64 67/60/60 64/56/56 60/53/53 57/50/50 0 to Array Interior 70/70/70 70/70/70 70/70/68 70/70/66 70/70/63 70/69/60 70/67/57 70/65/55 69/61/51 66/56/48 62/53/45 58/50/42 55/47/39 52/44/37 Array Edge 70/70/62 70/68/59 70/66/56 70/63/53 69/60/51 67/58/49 65/55/47 62/53/45 57/49/41 54/46/39 50/43/36 47/40/34 44/38/32 42/36/30 7 to 20 Array Interior 72/72/70 72/72/67 72/69/65 72/67/62 72/65/59 72/62/56 71/59/54 69/57/52 65/53/48 61/49/45 57/46/42 53/43/39 50/41/37 47/39/35 Array Edge 72/64/58 72/61/55 69/58/52 67/55/50 65/52/48 62/50/46 59/48/44 57/46/42 53/43/39 49/40/36 46/37/34 43/35/32 41/33/30 39/31/28 D 20 to 27 Array Interior 74/74/74 74/74/74 74/74/72 74/72/70 74/69/67 74/67/65 74/65/63 74/63/60 72/58/56 69/54/52 66/51/49 62/47/46 58/45/43 55/42/41 Array Edge 74/69/67 74/66/64 74/63/61 74/60/58 72/58/55 70/55/53 68/53/51 66/51/49 61/47/45 57/44/42 53/41/39 50/39/37 47/36/35 45/34/33 27 to 45 Array Interior 89/85/79 86/82/76 83/80/74 80/77/71 77/75/69 75/73/67 73/70/65 71/69/62 68/65/58 64/60/54 60/57/50 56/53/47 53/50/45 50/47/42 Array Edge 77/74/69 74/72/66 72/69/63 69/67/60 67/64/57 65/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 45to90 Array Interior 102/96/96 99/93/93 96/90/90 93/87/87 91/84/84 88/82/82 86/79/79 84/77/77 80/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 90/94/84 87/81/81 84/78/78 82/75/75 80/73/73 77/71/71 75/69/69 73/67/67 69/63/63 66/59/59 62/55/55 58/52/52 55/49/49 52/46/46 0 to Array Interior 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/58 61/61/54 61/61/51 61/57/48 Array Edge 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/58 61/61/54 61/59/50 61/56/47 61/52/44 58/49/42 54/47/39 7 to 20 Array Interior 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/62 64/64/58 64/60/54 64/56/51 64/53/48 62/50/46 Array Edge 64/64/64 64/64/64 64/64/64 64/64/64 64/64/62 64/64/59 64/63/57 64/60/55 1 64/56/51 64/52/47 60/48/44 56/46/41 53/43/39 50/41/37 B 20 to 27 Array Interior 69/68/68 68/68/68 68/68/68 68/68/68 68/68/68 68/68/68 68/68/68 68/68/68 68/68/68 68/68/67 68/66/63 68/62/59 68/58/56 68/55/53 Array Edge 69/68/68 68/68/68 68/68/68 68/68/68 68/68/68 68/68/68 68/68/66 68/66/63 68/61/59 68/57/55 67/53/51 65/50/48 61/47/45 58/45/43 27 to 45 Array Interior 81/81/81 81/81/81 81/81/81 81/81/81 81/81/81 81/81/80 81/81/78 81/81/76 81/78/72 77/74/69 73/71/65 70/68/61 68/65/58 65/61/55 Array Edge 81/81/81 81/81/79 81/81/76 81/80/74 80/77/72 78/75/69 76/73/68 74/71/66 70/67/61 67/64/57 63/60/53 59/56/50 56/53/47 53/50/44 45 to 90 Array Interior 102/102/102 102/102/102 102/102/102 102/102/102 102/101/101 102/98/98 100/95/95 98/92/92 94/88/98 90/83/83 86/80/80 83/77/77 80/74/74 77/71/71 Array Edge 102/100/100 102/96/96 99/93/93 96/90/90 93/87/87 91/85/85 89/82/82 87/90/80 83/76/76 79/73/73 75/69/69 72/67/67 70/63/63 67/60/60 0 to Array Interior 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/60 61/61/56 61/61/52 61/58/49 61/54/46 60/51/43 56/48/41 Array Edge 61/61/61 61/61/61 61/61/61 61/61/58 61/61/55 61/61/53 61/60/51 61/58/49 61/54/45 58/50/42 55/47/39 51/44/37 48/41/35 46/39/33 7 to 20 Array Interior 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/61 64/64/59 64/62/57 64/58/52 64/54/49 62/50/46 58/47/43 55/44/40 52/42/38 Array Edge 64/64/63 64/64/60 64/63/57 64/60/55 64/57/52 64/55/50 64/53/48 62/50/46 1 58/47/43 54/44/40 50/41/37 47/38/35 44/36/33 42/34/31 60 psf C 20 to 27 Array Interior 68/68/68 68/68/68 68/68/68 68/68/68 68/68/68 68/68/68 68/68/68 68/67/66 68/63/61 68/59/57 68/55/53 67/52/50 64/49/47 60/46/44 Array Edge 68/68/68 68/68/68 68/68/66 68/66/63 68/63/60 68/60/58 68/58/55 68/55/53 66/51/49 62/48/46 58/45/43 55/42/40 52/40/38 49/38/36 27 to 45 Array Interior 81/81/81 81/81/81 81/81/78 81/81/76 81/79/73 80/77/71 78/75/69 75/73/67 72/69/63 68/66/59 65/62/55 61/58/52 58/55/49 55/52/46 Array Edge 81/79/73 79/76/70 76/73/68 74/71/66 71/69/63 69/67/60 67/65/58 65/62/55 61/57/51 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 102/102/102 102/99/99 101/95/95 98/92/92 95/89/89 93/87/87 91/84/84 88/82/82 94/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 95/89/89 92/85/85 89/83/83 86/80/80 94/78/78 82/75/75 80/73/73 77/71/71 74/68/68 70/64/64 67/60/60 64/56/56 60/53/53 57/50/50 01n7 Array Interior 65/65/65 65/65/65 65/65/65 65/65/65 65/65/63 65/65/60 65/65/57 65/65/55 65/61/51 65/56/48 62/53/45 58/50/42 55/47/39 52/44/37 Maximum Rail Spans(Inches) SnapNrack UR-40 Rail Flush-Mount on 0 to 30 Foot Roof—Bin 8—Landscape Ground Exposure Wind Speed-> 95 mph 100 mph 105 mph 110 mph 115 mph 120 mph 125 mph 130 mph 140 mph 150 mph 160 mph 170 mph 180 mph 190 mph Snow Load Category Panel Angle Roof Zone-> 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 Array Edge 65/65/62 65/65/59 65/65/56 65/63/53 65/60/51 65/58/49 65/55/47 62/53/45 57/49/41 54/46/39 50/43/36 47/40/34 44/38/32 42/36/30 7 to 20 Array Interior 69/68/68 68/68/67 68/68/65 68/67/62 68/65/59 68/62/56 68/59/54 68/57/52 65/53/48 61/49/45 57/46/42 53/43/39 50/41/37 47/39/35 Array Edge 68/64/58 68/61/55 68/58/52 67/55/50 65/52/48 62/50/46 59/48/44 57/46/42 53/43/39 49/40/36 46/37/34 43/35/32 41/33/30 39/31/28 D 20 to 27 Array Interior 71/71/71 71/71/71 71/71/71 71/71/70 71/69/67 71/67/65 71/65/63 71/63/60 71/58/56 69/54/52 66/51/49 62/47/46 58/45/43 55/42/41 Array Edge 71/69/67 71/66/64 71/63/61 71/60/58 71/58/55 70/55/53 68/53/51 66/51/49 61/47/45 57/44/42 53/41/39 50/39/37 47/36/35 45/34/33 27 to 45 Array Interior 85/85/79 85/82/76 83/90/74 90/77/71 77/75/69 75/73/67 73/70/65 71/69/62 68/65/58 64/60/54 60/57/50 56/53/47 53/50/45 50/47/42 Array Edge 77/74/69 74/72/66 72/69/63 69/67/60 67/64/57 65/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 45to90 Array Interior 102/96/96 99/93/93 96/90/90 93/87/87 91/94/94 88/82/82 86/79/79 94/77/77 80/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 90/84/84 87/81/81 84/78/78 82/75/75 80/73/73 77/71/71 75/69/69 73/67/67 69/63/63 66/59/59 62/55/55 58/52/52 55/49/49 52/46/46 0 to Array Interior 57/57/57 57/57/57 57/57/57 57/57/57 57/57/57 57/57/57 57/57/57 57/57/57 57/57/57 57/57/57 57/57/57 57/57/54 57/57/51 57/57/48 Array Edge 57/57/57 57/57/57 57/57/57 57/57/57 57/57/57 57/57/57 57/57/57 57/57/57 57/57/54 57/57/50 57/56/47 57/52/44 57/49/42 54/47/39 7 to 20 Array Interior 60/60/60 60/60/60 60/60/60 60/60/60 60/60/60 60/60/60 60/60/60 60/60/60 60/60/60 60/60/58 60/60/54 60/56/51 60/53/48 60/50/46 Array Edge 60/60/60 60/60/60 60/60/60 60/60/60 60/60/60 60/60/59 60/60/57 60/60/55 60/56/51 60/52/47 60/48/44 56/46/41 53/43/39 50/41/37 B 20 to 27 Array Interior 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/62/59 63/58/56 63/55/53 Array Edge 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/61/59 63/57/55 63/53/51 63/50/48 61/47/45 58/45/43 27 to 45 Array Interior 75/75/75 75/75/75 75/75/75 75/75/75 75/75/75 75/75/75 75/75/75 75/75/75 75/75/72 75/74/69 73/71/65 70/68/61 68/65/58 65/61/55 Array Edge 75/75/75 75/75/75 75/75/75 75/75/74 75/75/72 75/75/69 75/73/68 74/71/66 70/67/61 67/64/57 63/60/53 59/56/50 56/53/47 53/50/44 45to90 Array Interior 102/102/102 102/102/102 102/102/102 102/102/102 102/101/101 102/98/98 100/95/95 98/92/92 94/88/98 90/83/83 86/80/80 83/77/77 80/74/74 77/71/71 Array Edge 102/100/100 102/96/96 1 99/93/93 96/90/90 93/87/87 91/85/85 1 89/82/82 87/80/80 83/76/76 1 79/73/73 75/69/69 72/67/67 1 70/63/63 67/60/60 0 to Array Interior 57/57/57 57/57/57 57/57/57 57/57/57 57/57/57 57/57/57 57/57/57 57/57/57 57/57/56 57/57/52 57/57/49 57/54/46 57/51/43 56/48/41 Array Edge 57/57/57 57/57/57 57/57/57 57/57/57 57/57/55 57/57/53 57/57/51 57/57/49 57/54/45 57/50/42 55/47/39 51/44/37 48/41/35 46/39/33 7 to 20 Array Interior 60/60/60 60/60/60 60/60/60 60/60/60 60/60/60 60/60/60 60/60/59 60/60/57 60/58/52 60/54/49 60/50/46 58/47/43 55/44/40 52/42/38 Array Edge 60/60/60 60/60/60 60/60/57 60/60/55 60/57/52 60/55/50 60/53/48 60/50/46 58/47/43 54/44/40 50/41/37 47/38/35 44/36/33 42/34/31 70 psf C 20 to 27 Array Interior 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/63/61 63/59/57 63/55/53 63/52/50 62/49/47 60/46/44 Array Edge 63/63/63 63/63/63 63/63/63 63/63/63 63/63/60 63/60/58 63/58/55 63/55/53 63/51/49 62/48/46 58/45/43 55/42/40 52/40/38 49/38/36 27 to 45 Array Interior 75/75/75 75/75/75 75/75/75 75/75/75 75/75/73 75/75/71 75/75/69 75/73/67 72/69/63 68/66/59 65/62/55 61/58/52 58/55/49 55/52/46 Array Edge 75/75/73 75/75/70 75/73/68 74/71/66 71/69/63 69/67/60 67/65/58 65/62/55 61/57/51 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 102/102/102 102/99/99 101/95/95 98/92/92 95/89/89 93/87/87 91/94/84 88/82/82 84/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 95/89/89 92/85/85 1 89/83/83 86/80/80 84/78/78 82/75/75 1 80/73/73 77/71/71 74/68/68 70/64/64 67/60/60 64/56/56 60/53/53 57/50/50 0 to Array Interior 60/60/60 60/60/60 60/60/60 60/60/60 60/60/60 60/60/60 60/60/57 60/60/55 60/60/51 60/56/48 60/53/45 58/50/42 55/47/39 52/44/37 Array Edge 60/60/60 60/60/59 60/60/56 60/60/53 60/60/51 60/58/49 60/55/47 60/53/45 57/49/41 54/46/39 50/43/36 47/40/34 44/38/32 42/36/30 7to20 Array Interior 63/63/63 63/63/63 63/63/63 63/63/62 63/63/59 63/62/56 63/59/54 63/57/52 63/53/48 61/49/45 57/46/42 53/43/39 50/41/37 47/39/35 Array Edge 63/63/58 63/61/55 63/58/52 63/55/50 63/52/48 62/50/46 59/48/44 57/46/42 53/43/39 49/40/36 46/37/34 43/35/32 41/33/30 39/31/28 D 20 to 27 Array Interior 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/65 67/65/63 67/63/60 67/58/56 66/54/52 65/51/49 62/47/46 58/45/43 55/42/41 Array Edge 67/67/67 67/66/64 67/63/61 67/60/58 67/58/55 67/55/53 66/53/51 65/51/49 61/47/45 57/44/42 53/41/39 50/39/37 47/36/35 45/34/33 rtArray Interior 71/79/79 79/79/76 79/79/74 79/77/71 77/75/69 75/73/67 73/70/65 71/69/62 68/65/58 64/60/54 60/57/50 56/53/47 53/50/45 50/47/42 Array Edge 77/74/69 74/72/66 72/69/63 69/67/60 67/64/57 65/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 Array Interior 102/96/96 99/93/93 96/90/90 93/87/87 91/94/94 88/82/82 86/79/79 94/77/77 90/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 90/94/84 87/81/81 94/78/78 82/75/75 80/73/73 77/71/71 75/69/69 73/67/67 69/63/63 66/59/59 62/55/55 58/52/52 55/49/49 52/46/46 0 to Array Interior 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/51 53/53/48 Array Edge 53/53/53 53/53/53 1 53/53/53 53/53/53 53/53/53 53/53/53 1 53/53/53 53/53/53 53/53/53 1 53/53/50 53/53/47 53/52/44 1 53/49/42 53/47/39 7 to 20 Array Interior 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/54 56/56/51 56/53/49 56/50/46 Array Edge 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/55 56/56/51 56/52/47 56/48/44 56/46/41 53/43/39 50/41/37 B 20 to 27 Array Interior 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/58/56 59/55/53 Array Edge 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/57/55 59/53/51 59/50/48 59/47/45 58/45/43 27 to 45 Array Interior 71/71/71 71/71/71 71/71/71 71/71/71 71/71/71 71/71/71 71/71/71 71/71/71 71/71/71 71/71/69 71/71/65 70/68/61 68/65/58 65/61/55 Array Edge 71/71/71 71/71/71 71/71/71 71/71/71 71/71/71 71/71/69 71/71/68 71/71/66 70/67/61 67/64/57 63/60/53 59/56/50 56/53/47 53/50/44 45 to 90 Array Interior 101/101/101 101/101/101 101/101/101 101/101/101 101/101/101 101/98/98 100/95/95 98/92/92 94/88/88 90/83/83 86/80/80 83/77/77 80/74/74 77/71/71 Array Edge 101/100/100 101/96/96 99/93/93 96/90/90 93/97/87 91/85/85 89/82/82 87/80/80 83/76/76 79/73/73 75/69/69 72/67/67 70/63/63 67/60/60 0 to Array Interior 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/52 53/53/49 53/53/46 53/51/43 53/48/41 Array Edge 53/53/53 53/53/53 1 53/53/53 53/53/53 53/53/53 53/53/53 1 53/53/51 53/53/49 53/53/45 1 53/50/42 53/47/39 51/44/37 1 48/41/35 46/39/33 7 to 20 Array Interior 56/56/56 56/56/56 56/56/56 56/56/5fi :6/:6/:6 56/56/56 56/56/56 56/56/56 56/56/52 56/54/49 56/50/46 56/47/43 55/44/40 52/42/38 Array Edge 56/56/56 56/56/56 56/56/56 56/56/55 56/56/52 56/55/50 56/53/48 56/50/46 56/47/43 54/44/40 50/41/37 47/38/35 44/36/33 42/34/31 80 psf C 20 to 27 Array Interior 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/57 59/55/53 59/52/50 59/49/47 58/46/44 Array Edge 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/58 59/58/55 59/55/53 59/51/49 59/48/46 58/45/43 55/42/40 52/40/38 49/38/36 27 to 45 Array Interior 71/71/71 71/71/71 71/71/71 71/71/71 71/71/71 71/71/71 71/71/69 71/71/67 71/69/63 68/66/59 65/62/55 61/58/52 58/55/49 55/52/46 Array Edge 71/71/71 71/71/70 71/71/68 71/71/66 71/69/63 69/67/60 67/65/58 65/62/55 61/57/51 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 101/101/101 101/99/99 100/95/95 98/92/92 95/89/89 93/87/87 91/94/94 88/82/82 94/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 95/89/89 92/85/85 89/83/83 86/80/80 84/78/78 82/75/75 80/73/73 77/71/71 74/68/68 70/64/64 67/60/60 64/56/56 60/53/53 57/50/50 0 to Array Interior 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/55 56/56/51 56/56/48 56/53/45 56/50/42 55/47/39 52/44/37 Array Edge 56/56/56 56/56/56 1 56/56/56 56/56/53 56/56/51 56/56/49 56/55/47 56/53/45 56/49/41 54/46/39 50/43/36 47/40/34 44/38/32 42/36/30 7 to 20 Array Interior 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/56 59/59/54 59/57/52 59/53/48 59/49/45 57/46/42 53/43/39 50/41/37 47/39/35 Array Edge 59/59/58 59/59/55 59/58/52 59/55/50 59/52/48 59/50/46 59/48/44 57/46/42 53/43/39 49/40/36 46/37/34 43/35/32 41/33/30 39/31/28 0 20 to 27 Array Interior 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/63/63 63/63/60 63/58/56 63/54/52 62/51/49 61/47/46 58/45/43 55/42/41 Array Edge 63/63/63 63/63/63 63/63/61 63/60/58 63/58/55 63/55/53 63/53/51 62/51/49 61/47/45 57/44/42 53/41/39 50/39/37 47/36/35 45/34/33 27 to 45 Array Interior 75/75/75 75/75/75 75/75/74 75/75/71 75/75/69 75/73/67 73/70/65 71/69/62 68/65/58 64/60/54 60/57/50 56/53/47 53/50/45 50/47/42 Array Edge 75/74/69 74/72/66 72/69/63 69/67/60 67/64/57 65/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 45 to 90 Array Interior 102/96/96 99/93/93 96/90/90 93/87/87 91/94/94 88/82/82 86/79/79 94/77/77 80/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 1 90/84/84 87/81/81 84/78/78 82/75/75 80/73/73 77/71/71 75/69/69 73/67/67 69/63/63 66/59/59 62/55/55 58/52/52 55/49/49 52/46/46 0 to Array Interior 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/48 Array Edge 50/50/50 50/50/50 1 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/47 50/50/44 50/49/42 50/47/39 7 to 20 Array Interior 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/51 53/53/48 53/50/46 Array Edge 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/51 53/52/47 53/48/44 53/46/41 53/43/39 50/41/37 B 20 to 27 Array Interior 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/55/53 Array Edge 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/55 56/53/51 56/50/48 56/47/45 56/45/43 27 to 45 Array Interior 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/65 67/67/61 67/65/58 65/61/55 Array Edge 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/66 67/67/61 67/64/57 63/60/53 59/56/50 56/53/47 53/50/44 45to90 Array Interior 100/100/100 100/100/100 100/100/100 100/100/100 100/100/100 100/98/98 99/95/95 97/92/92 94/88/88 90/83/83 86/80/80 83/77/77 80/74/74 77/71/71 Array Edge 1 100/100/100 100/96/96 98/93/93 96/90/90 93/87/87 91/85/85 89/82/82 87/80/80 83/76/76 79/73/73 75/69/69 72/67/67 70/63/63 1 67/60/60 0to7 Array Interior 1 :1/:0/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/:0/:0 :0/:0/50 50/:0/50 50/:0/50 s0/50/49 s0/540/46 50/50/43 50/48/41 Array Edge 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/49 50/50/45 50/50/42 50/47/39 50/44/37 48/41/3: 46/39/33 Maximum Rail Spans(Inches) SnapNrack UR-40 Rail Flush-Mount on 0 to 30 Foot Roof—Bin 8—Landscape Ground Exposure Wind Speed-> 95 mph 100 mph 105 mph 110 mph 115 mph 120 mph 125 mph 130 mph 140 mph 150 mph 160 mph 170 mph 180 mph 190 mph Snow Load Category Panel Angle Roof Zone-> 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 7 to 20 Array Interior 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/52 53/53/49 53/50/46 53/47/43 53/44/40 52/42/38 Array Edge 53/53/53 53/53/53 53/53/53 53/53/53 53/53/52 53/53/50 53/53/48 53/50/46 53/47/43 53/44/40 50/41/37 47/38/35 44/36/33 42/34/31 90 psf C 20 to 27 Array Interior 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/55/53 56/52/50 56/49/47 56/46/44 Array Edge 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/55 56/55/53 56/51/49 56/48/46 56/45/43 55/42/40 52/40/38 49/38/36 27 to 45 Array Interior 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/63 67/66/59 65/62/55 61/58/52 58/55/49 55/52/46 Array Edge 67/67/67 67/67/67 67/67/67 67/67/66 67/67/63 67/67/60 67/65/58 65/62/55 61/57/51 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 100/100/100 100/99/99 99/95/95 97/92/92 95/89/89 93/87/87 91/84/84 88/82/82 84/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 95/89/89 92/85/85 1 89/83/83 86/80/80 84/78/78 82/75/75 80/73/73 77/71/71 74/68/68 70/64/64 1 67/60/60 64/56/56 60/53/53 57/50/50 0 to Array Interior 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/51 53/53/48 53/53/45 53/50/42 53/47/39 52/44/37 Array Edge 53/53/53 53/53/53 53/53/53 53/53/53 53/53/51 53/53/49 53/53/47 53/53/45 53/49/41 53/46/39 50/43/36 47/40/34 44/38/32 42/36/30 7 to 20 Array Interior 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/54 56/56/52 56/53/48 56/49/45 56/46/42 53/43/39 50/41/37 47/39/35 Array Edge 56/56/56 56/56/55 56/56/52 56/55/50 56/52/48 56/50/46 56/48/44 56/46/42 53/43/39 49/40/36 46/37/34 43/35/32 41/33/30 39/31/28 D 20 to 27 Array Interior 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/58/56 59/54/52 59/51/49 59/47/46 58/45/43 55/42/41 Array Edge 59/59/59 59/59/59 59/59/59 59/59/58 59/58/55 59/55/53 59/53/51 59/51/49 59/47/45 57/44/42 53/41/39 50/39/37 47/36/35 45/34/33 27 to 45 Array Interior 71/71/71 71/71/71 71/71/71 71/71/71 71/71/69 71/71/67 71/70/65 71/69/65 68/65/58 64/60/54 60/57/50 56/53/47 53/50/45 50/47/42 Array Edge 71/71/69 71/71/66 71/69/63 69/67/60 67/64/57 65/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 45 to 90 Array Interior 101/96/96 99/93/93 96/90/90 93/87/87 91/84/94 88/82/82 86/79/79 94/77/77 80/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 1 90/94/84 87/81/81 94/78/78 82/75/75 1 80/73/73 77/71/71 75/69/69 73/67/67 1 69/63/63 66/59/59 62/55/55 1 58/52/52 55/49/49 52/46/46 0 to Array Interior 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 49/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 Array Edge 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/47 48/48/44 48/48/42 48/47/39 7 to 20 Array Interior 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/48 50/50/46 Array Edge 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/47 50/48/44 50/46/41 50/43/39 50/41/37 3 20 to 27 Array Interior 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 Array Edge 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/51 53/50/48 53/47/45 53/45/43 27 to 45 Array Interior 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/61 64/64/58 64/61/55 Array Edge 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/61 64/64/57 63/60/53 59/56/50 56/53/47 53/50/44 45 to 90 Array Interior 99/99/99 99/99/99 99/99/99 99/99/99 99/99/99 99/98/98 98/95/95 97/92/92 93/88/88 90/83/83 86/90/80 83/77/77 80/74/74 77/71/71 Array Edge 99/99/99 99/96/96 1 97/93/93 95/90/90 93/87/87 91/85/85 89/82/82 1 87/80/80 83/76/76 79/73/73 1 75/69/69 72/67/67 70/63/63 67/60/60 0 to Array Interior 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/46 48/48/43 48/48/41 Array Edge 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/45 48/48/42 48/47/39 48/44/37 48/41/35 46/39/33 7 to 20 Array Interior 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/49 50/50/46 50/47/43 50/44/40 50/42/38 Array Edge 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/50 50/50/48 50/50/46 50/47/43 50/44/40 50/41/37 47/38/35 44/36/33 42/34/31 100 psf C 20 to 27 Array Interior 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/52/50 53/49/47 53/46/44 Array Edge 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/51/49 53/48/46 53/45/43 53/42/40 52/40/38 49/38/36 27 to 45 Array Interior 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/64 64/64/63 64/64/59 64/62/55 61/58/52 58/55/49 55/52/46 Array Edge 64/64/64 64/64/64 64/64/64 64/64/64 64/64/63 64/64/60 64/64/58 64/62/55 61/57/51 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 99/99/99 99/99/99 98/95/95 97/92/92 95/89/89 93/87/87 91/94/84 88/82/82 84/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 94/89/89 92/85/85 1 89/83/83 86/80/80 84/78/78 82/75/75 1 90/73/73 77/71/71 74/68/68 1 70/64/64 67/60/60 64/56/56 1 60/53/53 57/50/50 0 to Array Interior 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/48 51/51/45 51/50/42 51/47/39 51/44/37 Array Edge 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/49 51/51/47 51/51/45 51/49/41 51/46/39 50/43/36 47/40/34 44/38/32 42/36/30 7 to 20 Array Interior 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/53 53/53/52 53/53/48 53/49/45 53/46/42 53/43/39 50/41/37 47/39/35 Array Edge 53/53/53 53/53/53 53/53/52 53/53/50 53/52/48 53/50/46 53/48/44 53/46/42 53/43/39 49/40/36 46/37/34 43/35/32 41/33/30 39/31/28 D 20 to 27 Array Interior 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/56/56 56/54/52 56/51/49 56/47/46 56/45/43 55/42/41 Array Edge 56/56/56 56/56/56 56/56/56 56/56/56 56/56/55 56/55/53 56/53/51 56/51/49 56/47/45 56/44/42 53/41/39 50/39/37 47/36/35 45/34/33 27 to 45 Array Interior 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/67 67/67/65 67/67/62 67/65/58 64/60/54 60/57/50 56/53/47 53/50/45 50/47/42 Array Edge 67/67/67 67/67/66 67/67/63 67/67/60 67/64/57 65/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 45 to 90 Array Interior 100/96/96 98/93/93 96/90/90 93/87/87 91/84/84 88/82/82 86/79/79 84/77/77 80/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 1 90/94/84 1 87/81/81 1 94/78/78 1 82/75/75 1 80/73/73 1 77/71/71 1 75/69/69 1 73/67/67 1 69/63/63 1 66/59/59 1 62/55/55 1 58/52/52 1 55/49/49 1 52/46/46 Maximum Rail Spans(Inches) SnapNrack UR-40 Rail Flush-Mount on 0 to 30 Foot Roof—Bin 8--Landscape Ground Exposure Wind Speed-> 95 mph 100 mph 105 mph 110 mph 115 mph 120 mph 125 mph 130 mph 140 mph 150 mph 160 mph 170 mph 180 mph 190 mph Snow Load Category Panel Angle Roof Zone-> 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 1/2/3 0 to Array Interior 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 Array Edge 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/44 46/46/42 46/46/39 7to20 Array Interior 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 49/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/46 Array Edge 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 49/48/48 48/48/47 48/48/44 48/46/41 48/43/39 48/41/37 B 20 to 27 Array Interior 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 Array Edge 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/50/48 51/47/45 51/45/43 27 to 45 Array Interior 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/58 61/61/55 Array Edge 61/61/61 61/61/61 1 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/57 61/60/53 1 59/56/50 56/53/47 53/50/44 45 to 90 Array Interior 96/96796 96/96/96 96/96/96 96/96/96 96/96/96 96/96/96 96/95/95 96/92/92 93/88/88 90/83/83 86/80/80 83/77/77 80/74/74 77/71/71 Array Edge 96/96/96 96/96/96 96/93/93 94/90/90 92/87/87 91/85/85 89/82/82 87/90/90 83/76/76 79/73/73 75/69/69 72/67/67 70/63/63 67/60/60 0 to Array Interior 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/43 46/46/41 Array Edge 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/45 46/46/42 46/46/39 46/44/37 46/41/35 46/39/33 7 to 20 Array Interior 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/46 48/47/43 48/44/40 48/42/38 Array Edge 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/46 48/47/43 48/44/40 48/41/37 47/38/35 44/36/33 42/34/31 110 psf C 20 to 27 Array Interior 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/50 51/49/47 51/46/44 Array Edge 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/49 51/48/46 51/45/43 51/42/40 50/40/38 49/38/36 27 to 45 Array Interior 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/59 61/61/55 61/58/52 58/55/49 55/52/46 Array Edge 61/61/61 61/61/61 61/61/61 61/61/61 61/61/61 61/61/60 61/61/58 61/61/55 61/57/51 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 96/96/96 96/96/96 96/95/95 96/92/92 94/89/89 92/87/87 90/84/84 88/82/82 84/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 93/89/89 91/85/85 89/83/83 86/80/80 84/78/78 82/75/75 1 80/73/73 77/71/71 74/68/68 1 70/64/64 67/60/60 64/56/56 60/53/53 57/50/50 0 to Array Interior 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/48 48/48/45 48/48/42 48/47/39 48/44/37 Array Edge 49/48/48 48/48/48 1 48/48/48 48/48/48 48/48/48 48/48/48 48/48/47 48/48/45 48/48/41 48/46/39 48/43/36 47/40/34 44/38/32 42/36/30 7 to 20 Array Interior 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/48 51/49/45 51/46/42 51/43/39 50/41/37 47/39/35 Array Edge 51/51/51 51/51/51 51/51/51 51/51/50 51/51/48 51/50/46 51/48/44 51/46/42 51/43/39 49/40/36 46/37/34 43/35/32 41/33/30 39/31/28 D 20 to 27 Array Interior 54/54/54 :4/:4/54 :4/54/54 54/54/54 54/54/54 54/54/54 54/54/54 54/54/54 54/54/54 54/54/52 54/51/49 54/47/46 54/45/43 53/42/41 Array Edge 54/54/54 54/54/54 54/54/54 54/54/54 54/54/54 54/54/53 54/53/51 54/51/49 54/47/45 54/44/42 53/41/39 50/39/37 47/36/35 45/34/33 27 to 45 Array Interior 65/65/65 65/65/65 65/65/65 65/65/65 65/65/65 65/65/65 65/65/65 65/65/62 65/65/58 64/60/54 60/57/50 56/53/47 53/50/45 50/47/42 Array Edge 65/65/65 65/65/65 65/65/63 65/65/60 65/64/57 65/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 45 to 90 Array Interior 99/96/96 97/93/93 95/90/90 93/87/87 91/94/94 88/82/82 86/79/79 94/77/77 80/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 90/94/84 87/81/81 94/78/78 82/75/75 80/73/73 77/71/71 1 75/69/69 73/67/67 69/63/63 1 66/59/59 62/55/55 58/52/52 55/49/49 52/46/46 0to7 Array Interior 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 Array Edge 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/42 44/44/39 7 to 20 Array Interior 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 Array Edge 46/46/46 46/46/46 1 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/44 46/46/41 46/43/39 46/41/37 B 201o27 Array Interior 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 Array Edge 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/48 49/47/45 49/45/43 27 to 45 Array Interior 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/58 59/59/55 Array Edge 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/57 59/59/53 59/56/50 56/53/47 53/50/44 45 to 90 Array Interior 93/93/93 93/93/93 93/93/93 93/93/93 93/93/93 93/93/93 93/93/93 93/92/92 92/88/88 89/83/83 86/80/80 83/77/77 80/74/74 77/71/71 Array Edge 93/93/93 93/93/93 93/93/93 93/90/90 92/87/87 90/85/85 1 88/82/82 87/80/80 83/76/76 79/73/73 75/69/69 72/67/67 70/63/63 67/60/60 0to7 Array Interior 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/43 44/44/41 Array Edge 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 44/44/44 1 44/44/44 44/44/42 44/44/39 44/44/37 44/41/35 44/39/33 7 to 20 Array Interior 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/43 46/44/40 46/42/38 Array Edge 46/46/46 46/46/46 1 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/43 46/44/40 46/41/37 46/38/35 44/36/33 42/34/31 120 psf C 20 to 27 Array Interior 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/47 49/46/44 Array Edge 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/48/46 49/45/43 49/42/40 49/40/38 1 48/38/36 27 to 45 Array Interior 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/55 59/58/52 58/55/49 55/52/46 Array Edge 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/59 59/59/58 59/59/55 59/57/51 56/53/48 53/50/45 50/47/42 47/44/40 44/42/37 45 to 90 Array Interior 93/93/93 93/93/93 93/93/93 93/92/92 93/89/89 91/87/87 90/94/94 88/82/82 94/78/78 81/74/74 77/71/71 74/68/68 71/65/65 69/62/62 Array Edge 93/89/89 91/85/85 89/83/83 86/80/80 94/78/78 82/75/75 80/73/73 77/71/71 74/68/68 70/64/64 67/60/60 64/56/56 60/53/53 57/50/50 0 to Array Interior 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/45 46/46/42 46/46/39 46/44/37 Array Edge 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/46 46/46/45 46/46/41 46/46/39 46/43/36 46/40/34 44/38/32 42/36/30 7 to 20 Array Interior 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/49 49/49/48 49/49/45 49/46/42 49/43/39 49/41/37 47/39/35 Array Edge 49/49/49 49/49/49 49/49/49 49/49/49 49/49/48 49/49/46 49/48/44 49/46/42 49/43/39 49/40/36 46/37/34 43/35/32 41/33/30 39/31/28 D 20 to 27 Array Interior 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/49 51/47/46 51/45/43 51/42/41 Array Edge 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/51 51/51/49 51/47/45 51/44/42 51/41/39 50/39/37 47/36/35 45/34/33 27 to 45 Array Interior 62/62/62 62/62/62 62/62/62 62/62/62 62/62/62 62/62/62 62/62/62 62/62/62 62/62/58 62/60/54 60/57/50 56/53/47 53/50/45 50/47/42 Array Edge 62/62/62 62/62/62 62/62/62 62/62/60 62/62/57 62/62/55 62/59/53 60/57/51 56/53/47 52/49/44 48/46/41 46/43/39 43/41/36 41/39/34 45 to 90 Array Interior 98/96/96 96/93/93 94/90/90 93/87/87 91/94/94 88/82/82 86/79/79 94/77/77 90/73/73 76/70/70 73/67/67 70/64/64 67/60/60 64/57/57 Array Edge 1 90/94/84 87/81/81 94/78/78 1 82/75/75 1 80/73/73 1 77/71/71 1 75/69/69 1 73/67/67 69/63/63 1 66/59/59 1 62/55/55 58/52/52 55/49/49 52/46/46 Job# P-277370-23 ICIUS Leifermann Residence October 30, 2023 Attachment Pull-out Capacity Table 12.2A Lag Screw Reference Withdrawal Design Values, W1 1 abulaitd .%ithdrAAal desiLn %aluce 1NN 1 are in pounds per inch of thread p,nctratii-n into .id. ,Zrain of Nood nwinbcr. t_eol!tl► if thrrad icnt•tr►Lion in suain invinbar shJll not include the IetrLth of tht t:► ici t d ti ► r.ra 12.2.1.11. Specific Laz 1crev, Diamctcr. 1) G� 1,4" V16" 1 138" 7:16" 112" 5.18" 3 4" 7-8" 1 " 1-1 r8" 1-1/4" 0.73 397 469 �3'� W4 668 789 905 1()16 i 123 122t, 1327 0.71 381 430 516 579 I 640 737 868 974 1077 1176 1273 0.6h 357 422 4S4 54 3 (U() 709 51 3 913 1 U(N 1 103 1193 0.67 349 413 473 531 I 587 694 796 993 997 1078 1167 0 c` 2R1 132 3R1 42R 47: 554 641 719 795 M() 940 0.55 260 307 352 395 ( 437 I 516 592 664 734 802 868 .314 390 461 ;?5 ;'j : bib 716 775 0.50 225 266 305 342 378 I 447 513 576 636 695 732 296 367 434 498 5;9 617 6-4 7 3U 0.4r 205 242 278 312 345 408 467 525 580 634 696 0.46 199 235 269 3r►2 334 395 453 508 562 613 664 0.44 186 220 232 2Is I 312 369 423 473 525 574 621 0.43 1 7y 21_ 243 ` ' 302 t 409 459 50t1 554 tot) R- 1 Job# P-277370-23 I SO'c'us Leifermann Residence October 30, 2023 PZEM�Wwm May 26,2021 SnapNrack 775 hero Lane,Ste.200 San Luis Obispo,CA 93401 TEL:(8771732-2860 Attn.:SnapNrack-Engineering Department Re:Reportls)R 2017-03227.11 Ultra Rail System&2019-02916-A/B.01 Universal Rail-less System PZSE,Inc.—Structural Engineers has reviewed and analyzed the SnapNrack SpeedSeal DeckTrack&SpeedSeal Decklioot,for the Ultra Rail and Universal Rail-less System(s).This letter shall serve as an addendum to the Ultra Rail and Universal Rail-less Master Certification Reportls),No.2017-03227.11&2019-02916-A/B 01 Please refer to the Master Certdicatwn Report listed above for limitations of the mounting system certification(s)and code criteria. SpeedSeal Deckfoot&SpeedSeal DeckTrack-Deck Mount Appl"lon: Minimum 15/32-Inominall plywood or 7/16"OSB roof deck must be present for these tables to be applicable. Deck Mount Tables assume(41 R14 wood screws fully embedded into the roof deck.See SNR-DC-00450&SNR-DC-00453. The following table shows the maximum allowable design reactions for the above-men"ned racking systems for the Deck Mount Iication: Racking System&Attachment Uplift Z.,lb Downforce Z-,lb Side Y./Y-,b Lateral X*/X-,lb UR 40/60-SpeedSeal DeckFoot Deck Mount 448.0 335.0 275.7 275.7 RLU-SpeedSeal DeckTrack(beck Mount) 449.0 335.0 SO4.0 504.0 SpeedSeal DeckFoot i SpeedSeal Deck Tract-Rafter Mount AppYcatlon: See SNR-DC-00449&SNR-DC-00452. The following table shows the maximum allowable design reactions for the above-mentioned racking systems for the Rafter Mount Application: Raclung System A,Attachment Uplift Z.,lb Downforce Z-,lb Side Y•/Y-,lb Lateral X•/X-,lb UR 40/60-SpeedSeal DeckFoot Rafter Mount 829.0 1333.0 460.0 275.7 RLU-SpeedSeal DeckTrack fRafter Mount 623.0 674.0 504.0 504.0 Design ResponslbMRy: The design tables are intended to be used under the responsible charge of a registered design professional where required by the authority having jurisdiction.In all cases,the tables should be used under the direction of a design professional with sufficnent structural engineering knowledge and experience to be able to: • Evaluate whether the tables are applicable to the project,and • Understand and determine the appropriate values for all input parameters of the tables This report does not explicitly consider the effects on the existing budding structural or architectural components.This requires additional knowledge of the building and is outside the scope of the certification of this racking system component. If you have any questions,do not hesitate to call. Prepared by: PZSE,Inc.-Structural Engineers Roseinlle,CA 1478 Slone Point Drive.Suite 190, ROsevipe.CA 95661 916.961.3960 916 961 3965 www pLSrf.COm 1 or 349 SnapNrack S.: ,Y[.nt 9 Selut�m SpeedSeal'" DeckFoot Training Guide - Standard Composition Overview - This training guide outlines best practices for installing the SpeedSeal DeckFoot attachment with integrated chemical flashing on composition shingle roofs.This Guide is meant to supplement the Ultra Rail Installation Manual and provide detailed instructions on installation practices that produce high quality systems and maintain construction efficiency. The target audience of this guide is experienced rooftop solar installers with a strong understanding of solar construction best practices. and a basic understanding of the Ultra Rail mounting system. Required Tools Caulking Gun Drill Driver or Impact Driver Hex Socket Materials Included 0 (1)SnapNrack SpeedSeal"DeckFoot � 0 (1)SnapNrack Ultra Rail Mount �(�� O 0 (1)SnapNrack Ultra Mount Spring MIN 0 (1)S/16-'-18 X 2-1/2" SS Flange Bolt O Other Materials Required • QSnapNrack 1/4" .or 904 Stainless Steel Lag.or Self-Drilling Screw with EPDM-Backed Washer ��- a J Roof Sealant: SnapNrack recommends Chem Link sealants: • M-1 Universal Adhesive R Sealant WNote. • DuraLink 35 Multi-Purpose Sealant • DuraLink SO Super Adhesion Sealant Q 3.05 3.16Q .26 F3.W 3.86 Dimensioned SpeedSeal DeckFoot