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32C-121 20fruitstreetapt2solarcity JB-0101928-00_Calcs_ENP_MA_TBD s.pdfENP Version #53.6 - TBD RE: CERTIFICATION LETTER Project/Job # 0101928 Project Address: Dan Residence 20 Fruit Street Apt 2 Northampton, MA 01060 AHJ Northampton SC Office Springfield Design Criteria: - Applicable Codes = MA Res. Code, 8th Edition, ASCE 7-05, and 2005 NDS - Risk Category = II - Wind Speed = 90 mph, Exposure Category C - Ground Snow Load = 40 psf - MP1: Roof DL = 13 psf, Roof LL/SL = 28 psf (Non-PV Areas), Roof LL/SL = 28 psf (PV Areas) - MP2: Roof DL = 11 psf, Roof LL/SL = 28 psf (Non-PV Areas), Roof LL/SL = 28 psf (PV Areas) - MP3: Roof DL = 11 psf, Roof LL/SL = 28 psf (Non-PV Areas), Roof LL/SL = 28 psf (PV Areas) - MP5: Roof DL = 11 psf, Roof LL/SL = 28 psf (Non-PV Areas), Roof LL/SL = 28 psf (PV Areas) - MP7: Roof DL = 13 psf, Roof LL/SL = 28 psf (Non-PV Areas), Roof LL/SL = 28 psf (PV Areas) Note: Per IBC 1613.1; Seismic check is not required because Ss = 0.22462 < 0.4g and Seismic Design Category (SDC) = B < D To Whom It May Concern, Based on this evaluationI certify that the existing structure directly supporting the PV system is adequate to withstand all loading indicated in the design criteria above based on the requirements of the applicable existing building and/or new building provisions adopted/referenced above. The PV assembly hardware specifications are contained in the plans submitted for approval. Additionally a summary of the structural review is provided in the results summary tables on the following page. A jobsite survey of the existing framing system of the address indicated above was performed by a site survey team from SolarCity. Structural evaluation was based on site observations and the design criteria listed above. Additionally, I certify that the PV module assembly including all standoffs supporting it have been reviewed to be in accordance with the manufacturer’s specifications and to meet and/or exceed all requirements set forth by the ASCE 7 standards for loading. February 24, 2016 Version #53.6 - TBD X-X Spacing X-X Cantilever Y-Y Spacing Y-Y Cantilever Configuration Uplift DCR MP1 64'' 24'' 39'' NA Staggered 45.0% MP2 64'' 24'' 39'' NA Staggered 44.8% MP3 64'' 24'' 39'' NA Staggered 44.8% MP5 64'' 24'' 39'' NA Staggered 45.0% MP7 64'' 24'' 39'' NA Staggered 44.8% X-X Spacing X-X Cantilever Y-Y Spacing Y-Y Cantilever Configuration Uplift DCR MP1 48'' 18'' 65'' NA Staggered 56.1% MP2 48'' 17'' 65'' NA Staggered 55.8% MP3 48'' 17'' 65'' NA Staggered 55.8% MP5 48'' 18'' 65'' NA Staggered 56.1% MP7 48'' 17'' 65'' NA Staggered 55.8% Type Spacing Pitch MP1 Vaulted Ceiling @ 16 in. O.C. 25° MP2 Stick Frame @ 16 in. O.C. 20° MP3 Stick Frame @ 16 in. O.C. 20° MP5 Stick Frame @ 16 in. O.C. 25° MP7 Vaulted Ceiling @ 16 in. O.C. 20° HARDWARE DESIGN AND STRUCTURAL ANALYSIS RESULTS SUMMARY TABLES Mounting Plane Framing Hardware - Portrait Modules' Standoff Specifications Hardware - Landscape Modules' Standoff Specifications Qualification Results Structure Landscape Hardware Portrait Hardware Refer to the submitted drawings for details of information collected during a site survey. All member analysis and/or evaluation is based on framing information gathered on site. The existing gravity and lateral load carrying members were evaluated in accordance with the IBC and the IEBC. Member Evaluation Results Member Analysis OK Member Analysis OK Member Analysis OK Member Analysis OK Member Analysis OK Overhang 0.24 ft Actual W 1.50'' Span 1 7.58 ft Actual D 5.50'' Number of Spans (w/o Overhang) 1 Span 2 Nominal Yes Roofing Material Comp Roof Span 3 A 8.25 in.^2 Re-Roof No Span 4 Sx 7.56 in.^3 Plywood Sheathing Yes Span 5 Ix 20.80 in.^4 Board Sheathing None Total Rake Span 8.63 ft TL Defl'n Limit 180 Vaulted Ceiling Yes PV 1 Start 0.67 ft Wood Species SPF Ceiling Finish 1/2" Gypsum Board PV 1 End 6.67 ft Wood Grade #2 Rafter Slope 25° PV 2 Start Fb 875 psi Rafter Spacing 16'' O.C. PV 2 End Fv 135 psi Top Lat Bracing Full PV 3 Start E 1400000 psi Bot Lat Bracing Full PV 3 End Emin 510000 psi Roof Pitch 6/12 Initial Pitch Adjust Non-PV Areas PV Areas Roof Dead Load DL 13.0 psf x 1.10 14.3 psf 14.3 psf PV Dead Load PV-DL 3.0 psf x 1.10 3.3 psf Roof Live Load RLL 20.0 psf x 0.93 18.5 psf Live/Snow Load LL/SL1,2 40.0 psf x 0.7 ǀ x 0.7 28.0 psf 28.0 psf Total Load (Governing LC) TL 42.3 psf 45.7 psf Governing Load Comb CD CL (+) CL (-) CF Cr D + S 1.15 1.00 1.00 1.3 1.15 Governing Analysis Max Demand @ Location Capacity DCR Result Bending (+) Stress 690 psi 4.0 ft 1504 psi 0.46 Pass Member Analysis Results Summary Notes: 1. ps = Cs*pf; Cs -roof, Cs -pv per ASCE 7 [Figure 7-2] 2. pf = 0.7 (Ce) (Ct) (Is) pg ; Ce=0.9, Ct=1.1, Is=1.0 Member Design Summary (per NDS) Roof System Properties Member Loading Summary STRUCTURE ANALYSIS - LOADING SUMMARY AND MEMBER CHECK - MP1 Member Properties Summary MP1 Horizontal Member Spans Rafter Properties Roofing Material PV System Type Spanning Vents Standoff (Attachment Hardware) Roof Slope Rafter Spacing Framing Type / Direction Purlin Spacing X-X Purlins Only Tile Reveal Tile Roofs Only Tile Attachment System Tile Roofs Only Standing Seam/Trap Spacing SM Seam Only Wind Design Code Wind Design Method Basic Wind Speed V Fig. 6-1 Exposure Category Section 6.5.6.3 Roof Style Fig. 6-11B/C/D-14A/B Mean Roof Height h Section 6.2 Wind Pressure Exposure Kz Table 6-3 Topographic Factor Kzt Section 6.5.7 Wind Directionality Factor Kd Table 6-4 Importance Factor I Table 6-1 Ext. Pressure Coefficient (Up) GCp (Up) Fig. 6-11B/C/D-14A/B Ext. Pressure Coefficient (Down) GCp (Down) Fig. 6-11B/C/D-14A/B Design Wind Pressure p Equation 6-22 Wind Pressure Up p(up) Wind Pressure Down p(down) Y-Direction Max Allowable Standoff Spacing Landscape 39'' Max Allowable Cantilever Landscape NA Standoff Configuration Landscape Max Standoff Tributary Area Trib PV Assembly Dead Load W-PV Net Wind Uplift at Standoff T-actual Uplift Capacity of Standoff T-allow Standoff Demand/Capacity DCR Y-Direction Max Allowable Standoff Spacing Portrait 65'' Max Allowable Cantilever Portrait NA Standoff Configuration Portrait Max Standoff Tributary Area Trib PV Assembly Dead Load W-PV Net Wind Uplift at Standoff T-actual Uplift Capacity of Standoff T-allow Standoff Demand/Capacity DCR 22 sf 3.0 psf -280 lbs 500 lbs 56.1% 500 lbs 45.0% X-Direction 48'' 18'' Staggered Staggered 17 sf 3.0 psf -225 lbs 10.0 psf ALLOWABLE STANDOFF SPACINGS X-Direction 64'' 0.45 p = qh (GCp) -14.6 psf 24'' qh qh = 0.00256 (Kz) (Kzt) (Kd) (V^2) (I) Equation 6-15 16.7 psf Wind Pressure -0.88 Wind Pressure Calculation Coefficients 0.95 1.00 0.85 1.0 Velocity Pressure 25 ft Wind Design Criteria ASCE 7-05 Partially/Fully Enclosed Method 90 mph NA C Gable Roof NA NA 16'' O.C. Y-Y Rafters NA No Comp Mount Type C 25° CALCULATION OF DESIGN WIND LOADS - MP1 Mounting Plane Information Comp Roof SolarCity SleekMount™ Overhang 0.49 ft Actual W 1.50'' Span 1 11.61 ft Actual D 9.25'' Number of Spans (w/o Overhang) 1 Span 2 Nominal Yes Roofing Material Comp Roof Span 3 A 13.88 in.^2 Re-Roof No Span 4 Sx 21.39 in.^3 Plywood Sheathing Yes Span 5 Ix 98.93 in.^4 Board Sheathing None Total Rake Span 12.88 ft TL Defl'n Limit 120 Vaulted Ceiling No PV 1 Start 1.58 ft Wood Species SPF Ceiling Finish 1/2" Gypsum Board PV 1 End 11.00 ft Wood Grade #2 Rafter Slope 20° PV 2 Start Fb 875 psi Rafter Spacing 16'' O.C. PV 2 End Fv 135 psi Top Lat Bracing Full PV 3 Start E 1400000 psi Bot Lat Bracing At Supports PV 3 End Emin 510000 psi Roof Pitch 5/12 Initial Pitch Adjust Non-PV Areas PV Areas Roof Dead Load DL 11.0 psf x 1.06 11.7 psf 11.7 psf PV Dead Load PV-DL 3.0 psf x 1.06 3.2 psf Roof Live Load RLL 20.0 psf x 0.98 19.5 psf Live/Snow Load LL/SL1,2 40.0 psf x 0.7 ǀ x 0.7 28.0 psf 28.0 psf Total Load (Governing LC) TL 39.7 psf 42.9 psf Governing Load Comb CD CL (+) CL (-) CF Cr D + S 1.15 1.00 0.42 1.1 1.15 Governing Analysis Max Demand @ Location Capacity DCR Result Bending (+) Stress 537 psi 6.3 ft 1273 psi 0.42 Pass Member Analysis Results Summary Notes: 1. ps = Cs*pf; Cs -roof, Cs -pv per ASCE 7 [Figure 7-2] 2. pf = 0.7 (Ce) (Ct) (Is) pg ; Ce=0.9, Ct=1.1, Is=1.0 Member Design Summary (per NDS) Roof System Properties Member Loading Summary STRUCTURE ANALYSIS - LOADING SUMMARY AND MEMBER CHECK - MP2 Member Properties Summary MP2 Horizontal Member Spans Rafter Properties Roofing Material PV System Type Spanning Vents Standoff (Attachment Hardware) Roof Slope Rafter Spacing Framing Type / Direction Purlin Spacing X-X Purlins Only Tile Reveal Tile Roofs Only Tile Attachment System Tile Roofs Only Standing Seam/Trap Spacing SM Seam Only Wind Design Code Wind Design Method Basic Wind Speed V Fig. 6-1 Exposure Category Section 6.5.6.3 Roof Style Fig. 6-11B/C/D-14A/B Mean Roof Height h Section 6.2 Wind Pressure Exposure Kz Table 6-3 Topographic Factor Kzt Section 6.5.7 Wind Directionality Factor Kd Table 6-4 Importance Factor I Table 6-1 Ext. Pressure Coefficient (Up) GCp (Up) Fig. 6-11B/C/D-14A/B Ext. Pressure Coefficient (Down) GCp (Down) Fig. 6-11B/C/D-14A/B Design Wind Pressure p Equation 6-22 Wind Pressure Up p(up) Wind Pressure Down p(down) Y-Direction Max Allowable Standoff Spacing Landscape 39'' Max Allowable Cantilever Landscape NA Standoff Configuration Landscape Max Standoff Tributary Area Trib PV Assembly Dead Load W-PV Net Wind Uplift at Standoff T-actual Uplift Capacity of Standoff T-allow Standoff Demand/Capacity DCR Y-Direction Max Allowable Standoff Spacing Portrait 65'' Max Allowable Cantilever Portrait NA Standoff Configuration Portrait Max Standoff Tributary Area Trib PV Assembly Dead Load W-PV Net Wind Uplift at Standoff T-actual Uplift Capacity of Standoff T-allow Standoff Demand/Capacity DCR 22 sf 3.0 psf -279 lbs 500 lbs 55.8% 500 lbs 44.8% X-Direction 48'' 17'' Staggered Staggered 17 sf 3.0 psf -224 lbs 10.0 psf ALLOWABLE STANDOFF SPACINGS X-Direction 64'' 0.45 p = qh (GCp) -14.6 psf 24'' qh qh = 0.00256 (Kz) (Kzt) (Kd) (V^2) (I) Equation 6-15 16.7 psf Wind Pressure -0.88 Wind Pressure Calculation Coefficients 0.95 1.00 0.85 1.0 Velocity Pressure 25 ft Wind Design Criteria ASCE 7-05 Partially/Fully Enclosed Method 90 mph NA C Gable Roof NA NA 16'' O.C. Y-Y Rafters NA No Comp Mount Type C 20° CALCULATION OF DESIGN WIND LOADS - MP2 Mounting Plane Information Comp Roof SolarCity SleekMount™ Overhang 0.49 ft Actual W 1.50'' Span 1 11.35 ft Actual D 9.25'' Number of Spans (w/o Overhang) 1 Span 2 Nominal Yes Roofing Material Comp Roof Span 3 A 13.88 in.^2 Re-Roof No Span 4 Sx 21.39 in.^3 Plywood Sheathing Yes Span 5 Ix 98.93 in.^4 Board Sheathing None Total Rake Span 12.60 ft TL Defl'n Limit 120 Vaulted Ceiling No PV 1 Start 1.17 ft Wood Species SPF Ceiling Finish 1/2" Gypsum Board PV 1 End 10.67 ft Wood Grade #2 Rafter Slope 20° PV 2 Start Fb 875 psi Rafter Spacing 16'' O.C. PV 2 End Fv 135 psi Top Lat Bracing Full PV 3 Start E 1400000 psi Bot Lat Bracing At Supports PV 3 End Emin 510000 psi Roof Pitch 5/12 Initial Pitch Adjust Non-PV Areas PV Areas Roof Dead Load DL 11.0 psf x 1.06 11.7 psf 11.7 psf PV Dead Load PV-DL 3.0 psf x 1.06 3.2 psf Roof Live Load RLL 20.0 psf x 0.98 19.5 psf Live/Snow Load LL/SL1,2 40.0 psf x 0.7 ǀ x 0.7 28.0 psf 28.0 psf Total Load (Governing LC) TL 39.7 psf 42.9 psf Governing Load Comb CD CL (+) CL (-) CF Cr D + S 1.15 1.00 0.43 1.1 1.15 Governing Analysis Max Demand @ Location Capacity DCR Result Bending (+) Stress 514 psi 6.2 ft 1273 psi 0.40 Pass Member Analysis Results Summary Notes: 1. ps = Cs*pf; Cs -roof, Cs -pv per ASCE 7 [Figure 7-2] 2. pf = 0.7 (Ce) (Ct) (Is) pg ; Ce=0.9, Ct=1.1, Is=1.0 Member Design Summary (per NDS) Roof System Properties Member Loading Summary STRUCTURE ANALYSIS - LOADING SUMMARY AND MEMBER CHECK - MP3 Member Properties Summary MP3 Horizontal Member Spans Rafter Properties Roofing Material PV System Type Spanning Vents Standoff (Attachment Hardware) Roof Slope Rafter Spacing Framing Type / Direction Purlin Spacing X-X Purlins Only Tile Reveal Tile Roofs Only Tile Attachment System Tile Roofs Only Standing Seam/Trap Spacing SM Seam Only Wind Design Code Wind Design Method Basic Wind Speed V Fig. 6-1 Exposure Category Section 6.5.6.3 Roof Style Fig. 6-11B/C/D-14A/B Mean Roof Height h Section 6.2 Wind Pressure Exposure Kz Table 6-3 Topographic Factor Kzt Section 6.5.7 Wind Directionality Factor Kd Table 6-4 Importance Factor I Table 6-1 Ext. Pressure Coefficient (Up) GCp (Up) Fig. 6-11B/C/D-14A/B Ext. Pressure Coefficient (Down) GCp (Down) Fig. 6-11B/C/D-14A/B Design Wind Pressure p Equation 6-22 Wind Pressure Up p(up) Wind Pressure Down p(down) Y-Direction Max Allowable Standoff Spacing Landscape 39'' Max Allowable Cantilever Landscape NA Standoff Configuration Landscape Max Standoff Tributary Area Trib PV Assembly Dead Load W-PV Net Wind Uplift at Standoff T-actual Uplift Capacity of Standoff T-allow Standoff Demand/Capacity DCR Y-Direction Max Allowable Standoff Spacing Portrait 65'' Max Allowable Cantilever Portrait NA Standoff Configuration Portrait Max Standoff Tributary Area Trib PV Assembly Dead Load W-PV Net Wind Uplift at Standoff T-actual Uplift Capacity of Standoff T-allow Standoff Demand/Capacity DCR 22 sf 3.0 psf -279 lbs 500 lbs 55.8% 500 lbs 44.8% X-Direction 48'' 17'' Staggered Staggered 17 sf 3.0 psf -224 lbs 10.0 psf ALLOWABLE STANDOFF SPACINGS X-Direction 64'' 0.45 p = qh (GCp) -14.6 psf 24'' qh qh = 0.00256 (Kz) (Kzt) (Kd) (V^2) (I) Equation 6-15 16.7 psf Wind Pressure -0.88 Wind Pressure Calculation Coefficients 0.95 1.00 0.85 1.0 Velocity Pressure 25 ft Wind Design Criteria ASCE 7-05 Partially/Fully Enclosed Method 90 mph NA C Gable Roof NA NA 16'' O.C. Y-Y Rafters NA No Comp Mount Type C 20° CALCULATION OF DESIGN WIND LOADS - MP3 Mounting Plane Information Comp Roof SolarCity SleekMount™ Overhang 0.49 ft Actual W 1.50'' Span 1 8.72 ft Actual D 9.25'' Number of Spans (w/o Overhang) 1 Span 2 Nominal Yes Roofing Material Comp Roof Span 3 A 13.88 in.^2 Re-Roof No Span 4 Sx 21.39 in.^3 Plywood Sheathing Yes Span 5 Ix 98.93 in.^4 Board Sheathing None Total Rake Span 10.16 ft TL Defl'n Limit 120 Vaulted Ceiling No PV 1 Start 1.83 ft Wood Species SPF Ceiling Finish 1/2" Gypsum Board PV 1 End 7.75 ft Wood Grade #2 Rafter Slope 25° PV 2 Start Fb 875 psi Rafter Spacing 16'' O.C. PV 2 End Fv 135 psi Top Lat Bracing Full PV 3 Start E 1400000 psi Bot Lat Bracing At Supports PV 3 End Emin 510000 psi Roof Pitch 6/12 Initial Pitch Adjust Non-PV Areas PV Areas Roof Dead Load DL 11.0 psf x 1.10 12.1 psf 12.1 psf PV Dead Load PV-DL 3.0 psf x 1.10 3.3 psf Roof Live Load RLL 20.0 psf x 0.93 18.5 psf Live/Snow Load LL/SL1,2 40.0 psf x 0.7 ǀ x 0.7 28.0 psf 28.0 psf Total Load (Governing LC) TL 40.1 psf 43.4 psf Governing Load Comb CD CL (+) CL (-) CF Cr D + S 1.15 1.00 0.53 1.1 1.15 Governing Analysis Max Demand @ Location Capacity DCR Result Bending (+) Stress 304 psi 4.9 ft 1273 psi 0.24 Pass Member Analysis Results Summary Notes: 1. ps = Cs*pf; Cs -roof, Cs -pv per ASCE 7 [Figure 7-2] 2. pf = 0.7 (Ce) (Ct) (Is) pg ; Ce=0.9, Ct=1.1, Is=1.0 Member Design Summary (per NDS) Roof System Properties Member Loading Summary STRUCTURE ANALYSIS - LOADING SUMMARY AND MEMBER CHECK - MP5 Member Properties Summary MP5 Horizontal Member Spans Rafter Properties Roofing Material PV System Type Spanning Vents Standoff (Attachment Hardware) Roof Slope Rafter Spacing Framing Type / Direction Purlin Spacing X-X Purlins Only Tile Reveal Tile Roofs Only Tile Attachment System Tile Roofs Only Standing Seam/Trap Spacing SM Seam Only Wind Design Code Wind Design Method Basic Wind Speed V Fig. 6-1 Exposure Category Section 6.5.6.3 Roof Style Fig. 6-11B/C/D-14A/B Mean Roof Height h Section 6.2 Wind Pressure Exposure Kz Table 6-3 Topographic Factor Kzt Section 6.5.7 Wind Directionality Factor Kd Table 6-4 Importance Factor I Table 6-1 Ext. Pressure Coefficient (Up) GCp (Up) Fig. 6-11B/C/D-14A/B Ext. Pressure Coefficient (Down) GCp (Down) Fig. 6-11B/C/D-14A/B Design Wind Pressure p Equation 6-22 Wind Pressure Up p(up) Wind Pressure Down p(down) Y-Direction Max Allowable Standoff Spacing Landscape 39'' Max Allowable Cantilever Landscape NA Standoff Configuration Landscape Max Standoff Tributary Area Trib PV Assembly Dead Load W-PV Net Wind Uplift at Standoff T-actual Uplift Capacity of Standoff T-allow Standoff Demand/Capacity DCR Y-Direction Max Allowable Standoff Spacing Portrait 65'' Max Allowable Cantilever Portrait NA Standoff Configuration Portrait Max Standoff Tributary Area Trib PV Assembly Dead Load W-PV Net Wind Uplift at Standoff T-actual Uplift Capacity of Standoff T-allow Standoff Demand/Capacity DCR 22 sf 3.0 psf -280 lbs 500 lbs 56.1% 500 lbs 45.0% X-Direction 48'' 18'' Staggered Staggered 17 sf 3.0 psf -225 lbs 10.0 psf ALLOWABLE STANDOFF SPACINGS X-Direction 64'' 0.45 p = qh (GCp) -14.6 psf 24'' qh qh = 0.00256 (Kz) (Kzt) (Kd) (V^2) (I) Equation 6-15 16.7 psf Wind Pressure -0.88 Wind Pressure Calculation Coefficients 0.95 1.00 0.85 1.0 Velocity Pressure 25 ft Wind Design Criteria ASCE 7-05 Partially/Fully Enclosed Method 90 mph NA C Gable Roof NA NA 16'' O.C. Y-Y Rafters NA No Comp Mount Type C 25° CALCULATION OF DESIGN WIND LOADS - MP5 Mounting Plane Information Comp Roof SolarCity SleekMount™ Overhang 0.24 ft Actual W 1.50'' Span 1 9.19 ft Actual D 5.50'' Number of Spans (w/o Overhang) 1 Span 2 Nominal Yes Roofing Material Comp Roof Span 3 A 8.25 in.^2 Re-Roof No Span 4 Sx 7.56 in.^3 Plywood Sheathing Yes Span 5 Ix 20.80 in.^4 Board Sheathing None Total Rake Span 10.04 ft TL Defl'n Limit 180 Vaulted Ceiling Yes PV 1 Start 1.50 ft Wood Species SPF Ceiling Finish 1/2" Gypsum Board PV 1 End 7.75 ft Wood Grade #2 Rafter Slope 20° PV 2 Start Fb 875 psi Rafter Spacing 16'' O.C. PV 2 End Fv 135 psi Top Lat Bracing Full PV 3 Start E 1400000 psi Bot Lat Bracing Full PV 3 End Emin 510000 psi Roof Pitch 5/12 Initial Pitch Adjust Non-PV Areas PV Areas Roof Dead Load DL 13.0 psf x 1.06 13.8 psf 13.8 psf PV Dead Load PV-DL 3.0 psf x 1.06 3.2 psf Roof Live Load RLL 20.0 psf x 0.98 19.5 psf Live/Snow Load LL/SL1,2 40.0 psf x 0.7 ǀ x 0.7 28.0 psf 28.0 psf Total Load (Governing LC) TL 41.8 psf 45.0 psf Governing Load Comb CD CL (+) CL (-) CF Cr D + S 1.15 1.00 1.00 1.3 1.15 Governing Analysis Max Demand @ Location Capacity DCR Result Bending (+) Stress 997 psi 4.8 ft 1504 psi 0.66 Pass Member Analysis Results Summary Notes: 1. ps = Cs*pf; Cs -roof, Cs -pv per ASCE 7 [Figure 7-2] 2. pf = 0.7 (Ce) (Ct) (Is) pg ; Ce=0.9, Ct=1.1, Is=1.0 Member Design Summary (per NDS) Roof System Properties Member Loading Summary STRUCTURE ANALYSIS - LOADING SUMMARY AND MEMBER CHECK - MP7 Member Properties Summary MP7 Horizontal Member Spans Rafter Properties Roofing Material PV System Type Spanning Vents Standoff (Attachment Hardware) Roof Slope Rafter Spacing Framing Type / Direction Purlin Spacing X-X Purlins Only Tile Reveal Tile Roofs Only Tile Attachment System Tile Roofs Only Standing Seam/Trap Spacing SM Seam Only Wind Design Code Wind Design Method Basic Wind Speed V Fig. 6-1 Exposure Category Section 6.5.6.3 Roof Style Fig. 6-11B/C/D-14A/B Mean Roof Height h Section 6.2 Wind Pressure Exposure Kz Table 6-3 Topographic Factor Kzt Section 6.5.7 Wind Directionality Factor Kd Table 6-4 Importance Factor I Table 6-1 Ext. Pressure Coefficient (Up) GCp (Up) Fig. 6-11B/C/D-14A/B Ext. Pressure Coefficient (Down) GCp (Down) Fig. 6-11B/C/D-14A/B Design Wind Pressure p Equation 6-22 Wind Pressure Up p(up) Wind Pressure Down p(down) Y-Direction Max Allowable Standoff Spacing Landscape 39'' Max Allowable Cantilever Landscape NA Standoff Configuration Landscape Max Standoff Tributary Area Trib PV Assembly Dead Load W-PV Net Wind Uplift at Standoff T-actual Uplift Capacity of Standoff T-allow Standoff Demand/Capacity DCR Y-Direction Max Allowable Standoff Spacing Portrait 65'' Max Allowable Cantilever Portrait NA Standoff Configuration Portrait Max Standoff Tributary Area Trib PV Assembly Dead Load W-PV Net Wind Uplift at Standoff T-actual Uplift Capacity of Standoff T-allow Standoff Demand/Capacity DCR 22 sf 3.0 psf -279 lbs 500 lbs 55.8% 500 lbs 44.8% X-Direction 48'' 17'' Staggered Staggered 17 sf 3.0 psf -224 lbs 10.0 psf ALLOWABLE STANDOFF SPACINGS X-Direction 64'' 0.45 p = qh (GCp) -14.6 psf 24'' qh qh = 0.00256 (Kz) (Kzt) (Kd) (V^2) (I) Equation 6-15 16.7 psf Wind Pressure -0.88 Wind Pressure Calculation Coefficients 0.95 1.00 0.85 1.0 Velocity Pressure 25 ft Wind Design Criteria ASCE 7-05 Partially/Fully Enclosed Method 90 mph NA C Gable Roof NA NA 16'' O.C. Y-Y Rafters NA No Comp Mount Type C 20° CALCULATION OF DESIGN WIND LOADS - MP7 Mounting Plane Information Comp Roof SolarCity SleekMount™ jb_0101928_00___acad_b_01 s.pdf INDEX ABBREVIATIONS ELECTRICAL NOTES VICINITY MAP JURISDICTION NOTES REV BY DATE COMMENTS REV A NAME DATE COMMENTS * * * * * * * * * * * * * * * * LICENSE GENERAL NOTES (E) DRIVEWAY Front Of House Scale: 3/32" = 1' SITE PLAN 0 1' 10' 21' LEGEND MP3 20 311 20 311 Comp Shingle 2 Stories MP2 20 131 20 131 Comp Shingle 2 Stories MP1 25 221 25 221 Comp Shingle 2 Stories MP5 25 311 25 311 Comp Shingle 2 Stories MP7 20 221 20 221 Comp Shingle 2 Stories S1 SIDE VIEW OF MP2 NTS X-SPACING PORTRAIT LANDSCAPE STORIES: ROOF AZI X-CANTILEVER Y-SPACING Y-CANTILEVER PITCH ARRAY AZI PITCH NOTESMP2 131 20 131 20 Comp Shingle 22x10 @ 16" OC 2x6 @16" OC STAGGERED64" 24" 48" 17" RAFTER C.J. B S1 SIDE VIEW OF MP1 NTS X-SPACING PORTRAIT LANDSCAPE STORIES: ROOF AZI X-CANTILEVER Y-SPACING Y-CANTILEVER PITCH ARRAY AZI PITCH NOTESMP1 221 25 221 25 Comp Shingle 22x6 @ 16" OC STAGGERED64" 24" 48" 18" RAFTER A S1 SIDE VIEW OF MP3 NTS X-SPACING PORTRAIT LANDSCAPE STORIES: ROOF AZI X-CANTILEVER Y-SPACING Y-CANTILEVER PITCH ARRAY AZI PITCH NOTESMP3 311 20 311 20 Comp Shingle 22x10 @ 16" OC 2x6 @16" OC STAGGERED64" 24" 48" 17" RAFTER C.J. C Scale: 1 1/2" = 1' STANDOFFS1 S1 SIDE VIEW OF MP7 NTS X-SPACING PORTRAIT LANDSCAPE STORIES: ROOF AZI X-CANTILEVER Y-SPACING Y-CANTILEVER PITCH ARRAY AZI PITCH NOTESMP7 221 20 221 20 Comp Shingle 22x6 @ 16" OC STAGGERED64" 24" 48" 17" RAFTER G S1 SIDE VIEW OF MP5 NTS X-SPACING PORTRAIT LANDSCAPE STORIES: ROOF AZI X-CANTILEVER Y-SPACING Y-CANTILEVER PITCH ARRAY AZI PITCH NOTESMP5 311 25 311 25 Comp Shingle 22x10 @ 16" OC 2x6 @16" OC STAGGERED64" 24" 48" 18" RAFTER C.J. E Scale: 1 1/2" = 1' STANDOFFS1 UPLIFT CALCULATIONS LICENSEMODULE SPECS INV 1 INVERTER SPECSGENERAL NOTESMAIN PANEL SPECSGROUND SPECS INV 2 INV 3 AC DC A B V 240 Inverter 1 MP2,MP3,MP5,MP7: 1x12 MP1,MP2: 1x16 PV Gnd A B POI SSC 1 Voc* = VDC Isc = ADC Vmp = VDC Imp= ADC1 2 Voc* = VDC Isc = ADC Vmp = VDC Imp= ADC2 3 Vmp = VAC Imp= AAC 3 4 Vmp = VAC Imp= AAC 4 POWER TO THIS BUILDING IS ALSO SUPPLIED FROM THE FOLLOWING SOURCES WITH DISCONNECTS LOCATED AS SHOWN: - Address: 20 Fruit Street Apt 2 OPERATING VOLTAGE = 240V JB-0101928-00 3055 Clearview Way San Mateo, CA 94402 T:(650) 638-1028 F:(650) 638-1029 (888)-SOL-CITY (765-2489) www.solarcity.com LB-130089-10X Per Code: NEC 690.31.G.3 Label Location: (C)(CB) LB-050081-10X Per Code: NEC 690.14.C.2 Label Location: (DC) (INV) LB-030042-10X Per Code: NEC 690.53 Label Location: (DC) (INV) LB-070004-10X Per Code: NEC 690.5(C) Label Location: (DC) (INV) LB-010001-10X Per Code: NEC 690.17(4) Label Location: (DC) (CB) LB-050082-10X Per Code: NEC 690.14.C.2 Label Location: (AC) (POI) LB-040007-10X Per Code: NEC 690.54 Label Location: (AC) (POI) LB-070005-10X Per Code: NEC 690.17.E Label Location: (AC)(POI) LB-060046-10X Per Code: NEC 690.17.4; NEC 690.54 Label Location: (POI) LB-040009-10X Per Code: NEC 690.64.B.4 Label Location: (POI) LB-040008-10X Per Code: NEC 690.64.B.4 Label Location: (D) (POI) LB-070039-10X Per Code: NEC 690.64.B.7 Label Location: (POI) LB-070016-10X Per Code: NEC 690.35(F) TO BE USED WHEN INVERTER IS UNGROUNDED Label Location: (DC) (INV) (POI): Point of Interconnection (M): Utility Meter (LC): Load Center (INV): Inverter With Integrated DC Disconnect (IC): Interior Run Conduit (DC): DC Disconnect (D): Distribution Panel (CB): Combiner Box (C): Conduit (AC): AC Disconnect Label Set RPHULVVROHO\ UHVSRQVLEOHIRUYHULI\LQJWKHVXLWDELOLW\RI=HS6RODU¶VSURGXFWVIRUHDFKXVH6SHFL¿FDWLRQVDUHVXEMHFWWRFKDQJHZLWKRXWQRWLFH3DWHQWVDQG$SSV]VSDWVFRP ! 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