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Home My WebLink About3806 179th Pl Ne_BLD4288_2025 A B C D E F G H AERIAL VIEW ELECTRICAL NOTES GENERAL NOTES 1. WHERE ALL TERMINALS OF THE 1. PRIOR TO THE COMMENCEMENT OF ANY DISCONNECTING MEANS MAY BE WORK, THE CONTRACTOR SHALL NOTIFY 1 1 ENERGIZED IN THE OPEN POSITION, A THE DESIGNER OF ANY DISCREPANCIES SIGN WILL BE PROVIDED WARNING OF WITH THE DESIGN IN ANY CAPACITY. THE HAZARDS. (PER ART. 690.17) ESPECIALLY RECOMMENDATIONS, CODES, 2. EACH UNGROUNDED CONDUCTOR OF OR REGULATIONS & RULES OF THE THE MULTIWIRE BRANCH CIRCUIT WILL AUTHORITY HAVING JURISDICTION, WHICH BE IDENTIFIED BY PHASE AND SYSTEM. SUPERSEDED THE NEC. (PER ART. 210.5) 2. ALL DIMENSIONS TO BE VERIFIED BY 3. A NATIONALLY RECOGNIZED TESTING CONTRACTOR PRIOR TO COMMENCEMENT LABORATORY SHALL LIST ALL OF WORK. EQUIPMENT IN COMPLIANCE WITH 3. CONTRACTOR IS RESPONSIBLE FOR ALL ARTICLE 110.3. SAFETY PRECAUTIONS, OSHA 2 2 4. ALL WIRES SHALL BE PROVIDED WITH REQUIREMENTS ETC. FOR THE SITE, STRAIN RELIEF AT ALL ENTRY POINTS INCLUDING EXISTING SITE HAZARDS. INTO BOXES AS REQUIRED BY UL LISTING 4. SYSTEM IS GRID INTERACTIVE/INTERTIED 5. MODULE FRAMES SHALL BE GROUNDED VIA A UL LISTED POWER-CONDITIONING AT THE UL-LISTED LOCATION PROVIDED INVERTER. BY THE MANUFACTURER USING 5. SYSTEM HAS NO ENERGY STORAGE OF UL-LISTED GROUNDING HARDWARE. ANY KIND, OR UPS. 6. MODULE FRAMES, RAIL, AND POSTS 6. ALL SOLAR MOUNTING FRAMEWORK TO SHALL BE BONDED WITH EQUIPMENT BE GROUNDED. GROUND CONDUCTORS AND GROUNDED 7. FOLLOW MANUFACTURERS SUGGESTED AT THE MAIN ELECTRICAL PANEL. INSTALLATION PRACTICES AND WIRING 3 7. THE DC GROUNDING ELECTRODE SPECIFICATIONS. 3 CONDUCTOR SHALL BE SIZED 8. ALL WORK TO BE IN COMPLIANCE WITH RESIDENCE PHOTO ACCORDING TO ARTICLE 250.166B & THE INTERNATIONAL BUILDING CODES. 690.47. (IBC) 9. ALL ELECTRICAL WORK TO BE IN COMPLIANCE WITH THE NATIONAL ELECTRIC CODE (NEC). 4 4 10/27/2021 STRUCTURAL ONLY SHEET INDEX PV 1 COVER PAGE PV 5 MOUNTING DIAGRAM PV 2 SITE PLAN PV 6 PLACARD 5 5 PV 3 ELECTRICAL DIAGRAM CUT SHEETS ATTACHED PV 4 CHIKO MOUNTING DRAWN BY: DRAWING SCALE: CONFIDENTIAL - THE INFORMATION CONTAINED SBD CUSTOM IN THIS PACKET AND SUBSEQUENT CUTSHEETS DESIGN SHALL NOT BE USED FOR THE BENEFIT OF SOLGEN POWER Brenda Weldon DATE: ANYONE OUTSIDE SOLGEN POWER. NEITHER 5100 ELM RD, 11/11/2021 SHALL IT BE DISCLOSED TO OTHERS OUTSIDE PASCO, WA 99301 1 THE RECIPIENT'S ORGANIZATION, EXCEPT IN CONNECTION WITH THE SALE AND USE OF THE P: 509-931-1663 3806 179th Pl. NE, Arlington, WA 98223 PAGE # RESPECTIVE EQUIPMENT, WITHOUT WRITTEN CONSENT FROM SOLGEN POWER. PV 1 A B C D E F G H N INDEX: SYSTEM SIZE DC:10.80kW TRUSS SPACING: 24" O.C. 1 SYSTEM SIZE AC:9.00kW 1 W E COMP. SHINGLE NUMBER OF MODULES:30 TRUSS SIZE: 2" x 4" 3 MODULE TYPE: ZNSHINE RAFTER SPACING:24" O.C. ZXM6-NH120-360M S 2 4 INVERTER: Hoymiles Series RAFTER SIZE:2" x 6" 5 2" x4" @ 24" OC MODULES 1 WAC 51-54A-1204.2.1 IFC 2 2 2018 2" x4" @ 24" OC EXCEPTION 5 UTILITY METER 2 3' MAIN SERVICE 3 COMBINER BOX 4 AC DISCONNECT 5 1'-6" 3 3 1'-6" 2" x4" @ 24" OC 2" x6" @ 24" OC 4 4 2" x4" @ 24" OC 1 SOLAR OFFSET 5 5 ROOF AREA: 2689Ft2 CIRCUIT 1 2 PV AREA: 588Ft CIRCUIT 2 ROOF %: 22% CIRCUIT 3 10/27/2021 STRUCTURAL ONLY DRAWN BY: DRAWING SCALE: CONFIDENTIAL - THE INFORMATION CONTAINED SBD 13/128" = 1'-0" IN THIS PACKET AND SUBSEQUENT CUTSHEETS DESIGN Brenda Weldon DATE: SHALL NOT BE USED FOR THE BENEFIT OF SOLGEN POWER ANYONE OUTSIDE SOLGEN POWER. NEITHER 5100 ELM RD, 11/11/2021 SHALL IT BE DISCLOSED TO OTHERS OUTSIDE PASCO, WA 99301 1 THE RECIPIENT'S ORGANIZATION, EXCEPT IN CONNECTION WITH THE SALE AND USE OF THE P: 509-931-1663 3806 179th Pl. NE, Arlington, WA 98223 PAGE # RESPECTIVE EQUIPMENT, WITHOUT WRITTEN CONSENT FROM SOLGEN POWER. PV 2 A B C D E F G H LOAD CALCS - TOTAL AMPS AVAILABLE MAX AC OPERATING CURRENT CALCS BUS RATING 120% TOTAL MAIN BREAKER MAX BREAKER SIZE 200A X 1.2 = 240 - 200A = 40A # OF MICROINVERTERS MAX OUTPUT CURRENT MAX AC OPERATING CURRENT 30 x 1.25 = 37.50A COMBINER BOX PANEL SIZE CALCS NUMBER OF NUMBER OF NOMINAL OUTPUT TOTAL 1 CIRCUIT # TOTAL 125% BREAKER SIZE FUSE SIZE CALCS 1 MODULES MICROINVERTERS CURRENT IN AMPS AMPS CIRCUIT 1 10 10 x 1.25 = 12.50 x 1.25 = 15.63 = 20A MAX AC OPERATING CURRENT 125% TOTAL FUSE SIZE CIRCUIT 2 9 9 x 1.25 = 11.25 x 1.25 = 14.06 = 15A 37.50A x 1.25 x 46.88A = 50A CIRCUIT 3 11 11 x 1.25 = 13.75 x 1.25 = 17.19 = 20A NOTES: UTILITY METER (E) 1. 200A UTILITY METER GLOBE ONLY. (EXISTING) 2. 200A LOAD CENTER. (EXISTING) 3. 60A RATED FUSED LOCKABLE AC DISCONNECT WITH (2) 1 TO UTILITY M GRID (E) 50A FUSES. (NEW) 4. 125A RATED COMBINER PANEL. (NEW) 3 ALL CONDUIT SIZES ARE MINIMUM SIZES ALL WIRE SIZES ARE FOR COPPER WIRE (2)6 AWG 2 (2)6 AWG EXISTING (1)8 AWG EGC (1)6 AWG NEUTRAL WIRE MAIN SERVICE PANEL (E) 2 2 SUPPLY-SIDE INTERCONNECTION NEC 705.11(B) WITH ILSCO CLAMPS VERIFY CONDUCTOR SIZE, 4/0 AL 4 OR 2/0 CU 200A MAIN SERVICE DISCONNECT (E) CIRCUIT #1 - 10 ZNSHINE ZXM6-NH120-360M MODULES WITH HOYMILES MI-300 MICRO INVERTERS (2)6 AWG (1)8 AWG EGC 10 2 1 20A OCPD NEW SOLAR 15A 2 POLE NEW SOLAR 20A 2 POLE NEW SOLAR 3 3 (2)12 AWG (1)8 AWG EGC (1)8 AWG EGC CIRCUIT #2 - 9 ZNSHINE ZXM6-NH120-360M MODULES WITH HOYMILES MI-300 MICRO INVERTERS 9 2 1 4 4 (2)12 AWG (1)8 AWG EGC CIRCUIT #3 - 11 ZNSHINE ZXM6-NH120-360M MODULES WITH HOYMILES MI-300 MICRO INVERTERS 11 2 1 5 5 (2)12 AWG (1)8 AWG EGC DRAWN BY: DRAWING SCALE: CONFIDENTIAL - THE INFORMATION CONTAINED SBD NOT TO SCALE IN THIS PACKET AND SUBSEQUENT CUTSHEETS DESIGN Brenda Weldon DATE: SHALL NOT BE USED FOR THE BENEFIT OF SOLGEN POWER ANYONE OUTSIDE SOLGEN POWER. NEITHER 5100 ELM RD, 11/11/2021 SHALL IT BE DISCLOSED TO OTHERS OUTSIDE PASCO, WA 99301 1 THE RECIPIENT'S ORGANIZATION, EXCEPT IN CONNECTION WITH THE SALE AND USE OF THE P: 509-931-1663 3806 179th Pl. NE, Arlington, WA 98223 PAGE # RESPECTIVE EQUIPMENT, WITHOUT WRITTEN CONSENT FROM SOLGEN POWER. PV 3 A B C D E F G H 5'9" 13.8' 3'5" 0.67" 1.4" 6" 1 1 SOLAR PANEL ROOFING L FEET 5'9" FLASHING 7# Rail 2 2 D 3 3 14.24' Mount to Existing Rafters STRUCTURAL NOTES: 4' 4' 4' 1. TOTAL WEIGHT (MODULE & RAIL): 1648 LBS 2. RAIL WEIGHT: 146 LBS 4 4 Mid Clamp End Clamp 3. MODULE WEIGHT: 1502 LBS 4. DISTRIBUTED WEIGHT: 2.51 PSF Grounding Lug 5 5 10/27/2021 STRUCTURAL ONLY DRAWN BY: DESIGN CONFIDENTIAL - THE INFORMATION CONTAINED SBD IN THIS PACKET AND SUBSEQUENT CUTSHEETS Brenda Weldon DATE: SHALL NOT BE USED FOR THE BENEFIT OF SOLGEN POWER ANYONE OUTSIDE SOLGEN POWER. NEITHER 5100 ELM RD, 11/11/2021 1 SHALL IT BE DISCLOSED TO OTHERS OUTSIDE PASCO, WA 99301 PAGE # THE RECIPIENT'S ORGANIZATION, EXCEPT IN CONNECTION WITH THE SALE AND USE OF THE P: 509-931-1663 3806 179th Pl. NE, Arlington, WA 98223 RESPECTIVE EQUIPMENT, WITHOUT WRITTEN CONSENT FROM SOLGEN POWER. PV 4 A B C D E F G H 1 1 13' 13'-7" 15'-6" 13'-8" 15'-1" 2 2 11'-2" PV MODULE ROOF 1 MOUNTING FEET TILT:9Â° ROOF 2 ROOF 3 CHIKO #7 RAIL 2" x 6" @ 24" OC AZIMUTH:180Â° TILT:18Â° TILT:15Â° 2" x 4" @ 24" OC AZIMUTH:180Â° 2" x 4" @ 24" OC AZIMUTH:180Â° 3 3 25'-2" 25'-2" 2 MOUNTING DIAGRAM SCALE: NOT TO SCALE STRUCTURAL NOTES: 1. 48" MAX SPAN OF RAIL TO DISTRIBUTE WEIGHT OVER SUPPORT OF TRUSSES 12'-8" 12'-9" 4 2. MOUNTING FEET ARE IN APPROXIMATE LOCATION. 4 3. MOUNTING FEET SHOULD BE STAGGERED AS SHOWN IN DIAGRAM ROOF 4 ROOF 5 TILT:17Â° TILT:19Â° 2" x 4" @ 24" OC AZIMUTH:90Â° 2" x 4" @ 24" OC AZIMUTH:270Â° 5 5 10/27/2021 MOUNTING DIAGRAM 1 STRUCTURAL ONLY DRAWN BY: DRAWING SCALE: CONFIDENTIAL - THE INFORMATION CONTAINED SBD 37/256" = 1'-0" IN THIS PACKET AND SUBSEQUENT CUTSHEETS DESIGN Brenda Weldon DATE: SHALL NOT BE USED FOR THE BENEFIT OF SOLGEN POWER ANYONE OUTSIDE SOLGEN POWER. NEITHER 5100 ELM RD, 11/11/2021 SHALL IT BE DISCLOSED TO OTHERS OUTSIDE PASCO, WA 99301 1 THE RECIPIENT'S ORGANIZATION, EXCEPT IN CONNECTION WITH THE SALE AND USE OF THE P: 509-931-1663 3806 179th Pl. NE, Arlington, WA 98223 PAGE # RESPECTIVE EQUIPMENT, WITHOUT WRITTEN CONSENT FROM SOLGEN POWER. PV 5 A B C D E F G H 1 1 CAUTION POWER TO THIS BUILDING IS SUPPLIED FROM THE FOLLOWING SOURCES WITH DISCONNECTS LOCATED AS SHOWN: 3806 179th Pl. NE, Arlington, WA 98223 N SOLAR PV ARRAY WITH 2 2 W E MICROINVERTERS UTILITY METER ROOF MOUNTED PV DISCONNECT S MAIN SERVICE PANEL 3 3 4 4 6"x6" 5 5 DRAWN BY: DESIGN CONFIDENTIAL - THE INFORMATION CONTAINED SBD IN THIS PACKET AND SUBSEQUENT CUTSHEETS Brenda Weldon DATE: SHALL NOT BE USED FOR THE BENEFIT OF SOLGEN POWER ANYONE OUTSIDE SOLGEN POWER. NEITHER 5100 ELM RD, 11/11/2021 1 SHALL IT BE DISCLOSED TO OTHERS OUTSIDE PASCO, WA 99301 PAGE # THE RECIPIENT'S ORGANIZATION, EXCEPT IN CONNECTION WITH THE SALE AND USE OF THE P: 509-931-1663 3806 179th Pl. NE, Arlington, WA 98223 RESPECTIVE EQUIPMENT, WITHOUT WRITTEN CONSENT FROM SOLGEN POWER. PV 6 Sense Energy Monitor Technical Specifications Sense is a home energy monitoring device. It is used to measure current and voltage in the service mains and solar supply of your home. If installed outside, it must be kept dry and within specified temperature ranges. The Sense monitor should only be installed by a licensed electrician. Monitor (Monitor Model Nos. SM3, SM3S) Compatibility: 120VAC (90V-130V), 60 Hz Processor: 1 GHz ARM Wi-Fi: 2.4 GHz 802.11b/g/n Power Consumption: <5 watts, 0.1 amps Dimensions: 5 3/8â€ H x 2 5/8â€œ W x 1 1/4â€ D Weight: 220 g RH < 90%; Elevation < 3000 meters; Temperature: 0 - 50Â°C Current Transformers CAT III, 300V, 200A max May be used on uninsulated conductors Dimensions: 3 6/16" H x 2" W x 12/16" D Inside Diameter: 1â€ Cable length: 46â€ Power Cable 16 AWG (UL), THHN or THWN, 600V. Cable length: 14â€ Per UL requirements, the Sense energy monitor power cable itself is marked with all the required safety information, and compliance was verified as part of obtaining our safety certifications. It is jacketed with PVC to form a flexible power cord of UL type SVT, and marked as such. Certifications Certified to CSA STD C22.2 No. 61010-1 Conforms to UL STD 61010-1 Conforms to CAN ICES-3(B)/NMB-3(B) 5002148 ZXM6-NH120 Series Znshinesolar 9BB HALF-CELL Black Mono PERC PV Module 120 Mono Poly Solutions 350Wä¸¨355Wä¸¨360Wä¸¨365Wä¸¨370W Made with selected materials and components to grant quality, dura- tion, efficiency and through outputs, the ZXM6-NH120 monocrystal- line modules by ZNSHINE SOLAR( power output 350 up to 370Wp, represent a highly flexible solution for diverse installation types, from industrial rooftop plants to small home PV systems or large ground surfaces. This allows you to produce clean energy while reducing your energy bill. ZNSHINE SOLARâ€™S ZXM6-NH120 Monocrystalline solar modules are tested and approved by international acknowledged laboratories, so that we can offer our customers a reliable and price-quality optimized product. The linear warranty on product outputs further ensures increased security and return on investments over time. 12 years product warranty/25 years output warranty 0.55% Annual Degradation over 25 years Znshineâ€™s Standard Industry Standard 100% 97.5% 90% 84.3% 80% Warranted Power Output 1 5 12 15 25 Years 9 Busbar Solar Cell High Efficiency No power loss thanks to improved temperature Graphene coating can increase about 2W of the module 9BB co-efficient caused by 9 busbar solar cell efficiency by rising around 0.5% of the light transmission Anti PID Better Weak Illumination Response Limited power degradation of ZXM6-NH120 module Lower temperature coefficient and wide spectral caused by PID effect is guaranteed under strict testing response, higher power output, even under low-light condition for mass production settings Certified to withstand the most Graphene Coating challenging environmental conditions Graphene coating modules can increase power generation 5400 Pa snow load and self-cleaning, also can save maintainance cost 2400 Pa wind load ZNShine PV-Tech Co., LTD, founded in 1988, is a world-leading high-performance PV module manufacturer, PV power station developer, EPC and power station operator. With its state-of-the-art production lines, the company boasts module output of 5GW. Bloomberg has listed ZNShine as a global Tier 1 PV manufacturer and Top 4 reliable PV supplier. www.znshinesolar.com Znshinesolar 9BB HALF-CELL Black ZXM6-NH120 Series Mono PERC PV Module ELECTRICAL PROPERTIES ä¸¨ STC* Module Type ZXM6- ZXM6- ZXM6- ZXM6- ZXM6- NH120-350/M NH120-355/M NH120-360/M NH120-365/M NH120-370/M Nominal Power Watt Pmax(W) 350 355 360 365 370 Power Output Tolerance Pmax(%) 0~+3 0~+3 0~+3 0~+3 0~+3 Maximum Power Voltage Vmp(V) 33.4 33.6 33.8 34.0 34.2 Maximum Power Current Imp(A) 10.48 10.57 10.66 10.74 10.82 Open Circuit Voltage Voc(V) 40.2 40.4 40.6 40.8 41.0 Short Circuit Current Isc(A) 11.04 11.14 11.24 11.33 11.42 Module Efficiency (%) 19.21 19.49 19.76 20.04 20.31 *STC (Standard Test Condition): Irradiance 1000W/mÂ², Module Temperature 25â„ƒ, AM 1.5 *The data above is for reference only and the actual data is in accordance with the pratical testing ELECTRICAL PROPETIES ä¸¨ NMOT* Maximum Power Pmax(Wp) 256.1 259.8 263.5 267.1 270.6 Maximum Power Voltage Vmpp(V) 30.9 31.1 31.3 31.4 31.6 Maximum Power Current Impp(A) 8.28 8.36 8.43 8.50 8.57 Open Circuit Voltage Voc(V) 37.2 37.4 37.6 37.8 38.0 Short Circuit Current Isc(A) 8.92 9.00 9.08 9.15 9.22 *NMOT(Nominal module operating temperature):Irradiance 800W/mÂ²,Ambient Temperature 20â„ƒ,AM 1.5,Wind Speed 1m/s *The data above is for reference only and the actual data is in accordance with the pratical testing TEMPERATURE RATINGS MECHANICAL DATA NMOT 44â„ƒ Â±3â„ƒ Solar cells Mono PERC 166Ã—83mm Temperature coefficient of Pmax -0.36%/â„ƒ Cells orientation 120ï¼ˆ6Ã—20ï¼‰ Temperature coefficient of Voc -0.29%/â„ƒ Module dimension 1755Ã—1038Ã—35 mm Temperature coefficient of Isc 0.05%/â„ƒ Weight 20.5 kg *Do not connect Fuse in Combiner Box with two or more strings in parallel connection Glass High transparency,low iron,tempered WORKING CONDITIONS Glass 3.2 mm (AR-coating) Maximum system voltage 1500 V DC Junction box IP 68ï¼Œ3 diodes Operating temperature -40â„ƒ~+85â„ƒ Cables 4 mmÂ² ,350 mm Maximum series fuse 20 A Connectors MC4-compatible Maximum load(snow/wind) 5400 Pa / 2400 Pa PACKAGING INFORMATION DIMENSION OF THE PV MODULEï¼ˆmmï¼‰ Packing Type 40â€™HQ Piece/Box 30 Barcode 1 Piece/Container 780 Drainage holes Barcode 2 Label I-V CURVES OF THE PV MODULE Mounting holes 10 410 9 370 1.000 W/m2 8 330 Junction box 7 290 800 W/m2 6 250 5 210 600 W/m2 Grounding Grounding holes identification Current (A)4 170 Powerï¼ˆWï¼‰ 3 130 400 W/m2 2 90 200 W/m 1 50 0 0 10 20 30 40 50 Voltage (V) Add : 1#, Zhixi Industrial Zoneï¼ŒJintanJiangsu 213251ï¼ŒP.R. China Remark: please read safety and installation instructions before using the productä¸¨Subject Telï¼š+86 519 6822 0233 E-mailï¼šinfo@znshinesolar.com to change without prior notice Â© ZNSHINE SOLAR 2020ä¸¨Version: ZXM6-NH120-2006.E November 11, 2021 Subject: Proposed Solar Panel Installation Brenda Weldon Residence, 3806 176th PL NE, Arlington, WA To Whom it May Concern, Our engineering department has reviewed information, gathered by our field crews, related to the proposed solar panel installation at the above-referenced address. The purpose of our review was to determine the structural adequacy of the existing roof. Based on our review and analysis of the available information, and in accordance with governing building codes, it is our professional opinion that the existing structure is permitted to remain unaltered for the proposed solar installation. Design Parameter Summary Governing Building Code: 2018 Washington Building Code (2018 IBC) Risk Category: II Design Wind Speed: 98 mph (per ASCE 7-16) Ground Snow Load: 17 psf Roof Information Roof Structure: 2x6 Manufactured Trusses @ 24" O.C. Roofing Material: Corrugated Metal (1 layer) Roof Slope: 9 degrees Roof Connection Details (1) S-5! SolarFoot to existing member with (2) 1/4"-14x1-1/2 wood screws @ 48" O.C. along rails Locations per design drawings Note: Required embedment length excludes the tapered tip of the screw, and embedment into sheathing. Analysis The proposed installation - including weight of panels, racking, and mounts - will be approximately 2.67 psf. In the areas where panels are installed, roof live loads will not be present. The reduction of roof live load is adequate to fully or partially compensate for the addition of the panel installation. Because the member forces in the area of the solar panels are not increased by more than 5%, the stresses in the members are not increased by more than 5%, and so per section 806.2 of the International Existing Building Code (IEBC), the structure need not be altered for gravity loading. The proposed installation will be 6" max. above the roof surface (flush mounted) and parallel to the roof surface. Therefore, any increase in wind loading on the building structure from the solar panel installation is expected to be negligible. Wind is the governing lateral load case. Because the increase in lateral loading is not increased by more than 10%, per section 806.3 of the adopted IEBC, the structure need not be altered for lateral loading. Wind uplift on the panels has been calculated in accordance with the relevant provisions of ASCE 7-16. This loading has been used to verify the adequacy of the connection specified above. Connection locations should be in accordance with design drawings. Conclusion The roof structure need not be altered for either gravity or lateral loading. Therefore, the existing structure is permitted to remain unaltered. Connections to the roof must be made per the "Roof Connection Details" section above. Copies of all relevant calculations are enclosed. Limitations and Disclaimers The opinion expressed in this letter is made in reliance on the following assumptions: the existing structure is in good condition; the existing structure is free from defects in design or workmanship; and the existing structure was code-compliant at the time of its design and construction. These assumptions have not been independently verified, and we have relied on representations made by the property owner and his or her agents with respect to the foregoing. The undersigned has not inspected the structure for patent or latent defects. Electrical engineering is beyond the scope of this analysis. Solar panels must be installed per manufacturer specifications. Structural design and analysis of the adequacy of solar panels, racks, mounts, rails, and other components is performed by each component's respective manufacturer and the undersigned makes no statement of opinion regarding such components. This letter and the opinions expressed herein are rendered solely for the benefit of the permitting authority (city or county building department), and may not be utilized or relied on by any other party. If you have any questions or concerns, please contact our office at (509)-931-1663, or email me directly at Trevor.Jones@solgenpower.com. Sincerely, Trevor A. Jones, P.E. 11/11/2021 Note: All calculations per ASCE 7 Load Comparison This calculation justifies the additional solar load by comparing existing to proposed gravity loads in the location of the solar panels. Without Solar With Solar Dead Load Corrugated Metal 3 3 psf 1/2" Plywood 1 1 psf Framing 3 3 psf Insulation 1 1 psf 1/2" Gypsum Ceiling 2 2 psf M,E, & Misc 1.5 1.5 psf Solar Panel 0 2.67 psf Total Dead Load 11.5 14.17 psf Snow Load Ground Snow Load, Pg 17 psf Exposure Factor, Ce 1 Thermal Factor, Ct 1.1 Importance Factor, Is 1 Flat Roof Snow Load 13.09 Eqn. 7.3-1 or jurisdiction min. Slope 9 degrees Unobstructed Slippery Surface? Yes Yes Slope Factor, Cs 1.00 1.00 Sloped Roof Snow Load 13.1 13.1 psf Live Load Roof Live Load 20 0 psf Load Combination D + Lr 31.5 14.2 psf D + S 24.6 27.3 psf Max. Load 31.5 27.3 psf % of original 87% Result: Because the total forces are decreased, per the relevant code provisions stated in the body of the letter, the existing roof structure is permitted to remain unaltered. SolarFoot Connection Calculation (per ASCE 7-16 Ch. 30 and NDS) This calculation justifies the connection of the solar panels to existing roof members, by showing the connection capacity is equal to or greater than the uplift force demands. Connection Demand Spacing perpendicular to rail 32.5 in 1/2 panel length Spacing parallel to rail 48 in Max spacing Effective Wind Area on each connection 10.8 ft2 Roof Angle 9 degrees Wind Speed 98 mph Exposure Coefficient, Kz 0.85 Topographic Factor, Kzt 1 Directionality Factor, Kd 0.85 Elevation Factor, Ke 1.00 Velocity Pressure, qz 17.7 psf Zones 1, Zones 2n, 2e 2r, 3r Zone 3e GCp (max) 1.5 2.5 3.6 Exposed Panels? (Î³E = 1.5) No Yes Yes Pressure Equalization Factor, Î³a 0.79 0.79 0.79 Uplift Force 20.8 52.1 75.1 psf Max. Uplift Force / Connection (1.0 WL) 225.9 564.6 813.1 lbs ASD Factored (0.6 WL) 135.5 338.8 487.8 lbs Solar Dead Load (0.6 DL) 17.4 17.4 17.4 lbs Max. Uplift Force (0.6 WL - 0.6 DL) 118.2 321.4 470.5 lbs Connection Capacity Connection Type S-5 SolarFoot Ultimate Capacity 1229 lbs Factor of Safety 2.5 Qty. of Connectors 1 Total Capacity 491.6 lbs Compare ASD Factored Demand to Capacity Demand 470.5 lbs Capacity 491.6 lbs Result Capacity exceeds demands. Therefore, connection passes. 3806 179th Pl NE Arlington, WA 98223 âœ” PV Solar Roof Installation. 9288 Brenda Weldon 3806 179th Pl NE Arlington WA 98223 425-268-2377 brenda.l.weldon@gmail.com Jose Gallardo 5715 Bedford St Pasco WA 99301 509-931-1663 permitting.wa@solgenpower.com Solgen Power, LLC 5715 Bedford St Pasco WA 99301 509-931-1663 permitting.wa@solgenpower.com Jose Gallardo SOLGEPL820BE 01/24/2022 âœ” âœ” 11/11/2021 Jose Gallardo Mariela Gonzalez 12/13/21 ! "#$% &'()*+ ,-$.% *(/'+0*1'2 ,-$.,3344 556')7*2)8 ,-$.9:9;9< 0=>?*@&ABBC :".$ D*>EFG/H' I". 5B B BJ K- L*>EMNG/H'O>*(/'+P*1'2M?*Q ;$""RS"T U!VWGQX'2(G+' Y-Z". 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