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Permit Review Detail
Review Status: Requires Resubmit
Review Details: RESIDENTIAL SOLAR v.1
Permit Number - TC-RES-1122-00980
Review Name: RESIDENTIAL SOLAR v.1
Review Status: Requires Resubmit
| Review Date | Reviewer's Name | Type of Review | Description | Status | Comments |
|---|---|---|---|---|---|
| 12/20/2022 | Light Residential Building Review (OIP) | APPROVED | |||
| 12/20/2022 | Bldg Permits - Post Review | PENDING ASSIGNMENT | |||
| 12/14/2022 | External Reviewers - SAFEBuilt | REQUIRES RESUBMIT | Activity Number: TC-RES-1122-00980 GENERAL: Provide written responses to all review comments. Provide a complete plan set. Provide additional documents as requested by review staff. Structural(S) Reviewer Denied Please make corrections and resubmit. Resubmittal shall include a response letter. All code references are to those recognized by the 2018 IRC, City of Tucson Amendments to the 2018 International Residential Code" and "PV System Requirements" adopted by City of Tucson unless otherwise noted. Recommend clouding changes to speed up the rereview. 1. Provide note: "All code references to those recognized by the City of Tucson" as per PV System requirements adopted by City of Tucson. 2. Provide the exact wording and locations for any plaques which may be required for non co-located disconnects as per "PV System Requirements" adopted by City of Tucson. 3. Show the back feed breaker at the opposite end on the panelboard from the main feeder location and label “Do Not Relocate”, NEC 705.12 (B)(2)(3) as per "PV System Requirements" adopted by City of Tucson.. 4. Where is the "Rapid Shutdown" on the line diagram which requires identifying each component and circuit notating sizes and installation details (labeling locations) as per PV System requirements adopted by City of Tucson? 5. Provide third party electric plan approval from electrical underwriter. 6. Provide electric plan approval from Tucson Electric Power (TEP) Electric Utility provider. 7. Provide an appropriate Maximum Photovoltaic System Voltage (Voc x 1.14) NEC 690.7 and Table 690.7 (16 degrees F lowest ambient). Show a collector panel design with a corrected voltage maximum not exceeding 600 volts. Show an inverter with appropriate specifications for this calculation. 8. Sheet E-01 thru E-03 shows (1) #10 AWG EGC (Equipment Grounding Conductor). AC and DC grounding electrode conductor size must be equal to the DC supply conductors and not smaller than #8 (copper), NEC 690.47(A) and NEC 250.166 & 690.47(B) as per PV System requirements adopted by City of Tucson. 9. Provide the exact wording and location for the Power Source “Imp, Vmp, Vmax, Isc, Wmax” marking required by NEC 690.51. Provide identification of polarity, max. overcurrent device rating for module protection and with the following ratings: a. Open-circuit voltage b. Operating voltage c. Maximum permissible system voltage d. Operating current e. Short-circuit current f. Maximum power 10. Provide required inspections as per City of Tucson Development Services Department. TC-RES-1122-00980 7777 E GOLF LINKS RD UNIT 2208 STRUC TUCSON (1 Hr.) Please make corrections and resubmit. Resubmittal shall include a response letter. All code references are to those recognized by the 2018 IRC, City of Tucson Amendments to the 2018 International Residential Code" and "PV System Requirements" adopted by City of Tucson unless otherwise noted. Recommend clouding changes to speed up the rereview. 1. Provide note: "All code references to those recognized by the City of Tucson" as per PV System requirements adopted by City of Tucson. 2. Provide a lag-bolt connection up-lift calculation demonstrating the wind load supporting capability, R301.1. Show the size and total number and spacing of lag bolts as per PV System requirements adopted by City of Tucson. Verify manufacturer's installation requirements (SolarMount)-minimum diameter lag screws with minimum embedment into the rafter are used, or the anchor fastener recommended by the manufacturer’s guidelines, whichever is more stringent as per PV System requirements adopted by City of Tucson. 3. Provide a lag-bolt connection up-lift calculation demonstrating the wind load supporting capability, R301.1. 4. Show the size and total number and spacing of lag bolts as per code, manufacturer and PV System requirements adopted by City of Tucson. 5. Verify manufacturer's installation requirements (SolarMount)-minimum diameter lag screws with minimum embedment into the rafter are used, or the anchor fastener recommended by the manufacturer’s guidelines, whichever is more stringent as per PV System requirements adopted by City of Tucson. 6. Verify roof is capable of supporting the weight of the following: a. Existing roof structural members sized as required for roof span and corresponding dead load(s) with existing sheathing. b. Existing roof. c. Proposed PV roof top solar system. d. Live load(s) of person(s) servicing solar system and or firefighters accessing roof. e. Buildings and structures, and parts thereof, shall be constructed to safely support all loads, including dead loads, live loads, roof loads, flood loads, snow loads, wind loads and seismic loads as prescribed by this code as per IRC-R301.1. 7. Provide documentation to verify the weight of the PV system 4 lbs/sq ft. or less as per IRC. 8. Sheet S-01 Mounting Detail shows points of attachment aligned. Provide documentation to verify the attachment points of the mounting system are staggered (no check requires low snow and wind load location). 9. Verify Structural Requirements-Rooftop-mounted photovoltaic panel systems shall be designed to structurally support the system and withstand applicable gravity loads in accordance with Chapter 3. The roof on which these systems are installed shall be designed and constructed to support the loads imposed by such systems in accordance with Chapter 8 as per IRCR324.4.1. 10. Provide required inspections as per City of Tucson Development Services Department. Building(B) Reviewer Denied Please make corrections and resubmit. Resubmittal shall include a response letter. All code references are to those recognized by the 2018 IRC, City of Tucson Amendments to the 2018 International Residential Code" and "PV System Requirements" adopted by City of Tucson unless otherwise noted. Recommend clouding changes to speed up the rereview. 1. Provide note: "All code references to those recognized by the City of Tucson" as per PV System requirements adopted by City of Tucson. 2. Sheet S-01 Mounting Detail and S-02 Structural Detail do NOT indicate roof material. a. Verify class of roofing as per IRC-905. b. Verify installation as per manufacturer's installation instructions. c. Verify weight of roofing material is calculated for roof dead load. 3. Verify Roof penetrations are flashed and sealed in accordance with Chapter 9 as per IRC-R324.4.3. 4. Sheet S-02 shows "24" MAX" for solar panel above roof surface. Verify 10 degree slope shown designated above finish roof complies with both the manufacturer's specifications and requirements. 5. Provide the existing roofing material and detail of the mounting system to meet the attachments’ weather sealing detail in compliance and in according to building code IRC section R909.3 and product installation instruction and verifying roof penetrations are flashed to prevent moisture from entering the roof. (IRC Chapter 9, Section R903, R324.4.3). Currently, there is a discepency between the Mount Spec Sheet SS-05 and the E-Curb System. 6. Verify the module/mounting system combination achieves the required fire classification as per IRC and Rooftop mounted PV panels and modules have the proper fire classification rating. (IRC Section R324.4.2 ). 7. Sheet PL-02 shows Safety Plans but no dimensions. Verify Roof access points, paths and clearances need to comply with the IFC & IRC. 8. Verify All roofs have an access point that does not place ground ladders over openings such as windows or doors, are located at strong points of building construction, and in locations where the access point does not conflict with overhead obstructions such as tree limbs, wires, or signs. (IFC 605.11.3.1) 9. Provide documentation to verify the weight of the PV system 4 lbs/sq ft. or less as per IRC-R324. 10. Verify PV systems shall be designed and installed in accordance with Sections R324.3.1 through R324.7.1, NFPA 70 and the manufacturer's installation instructions as per IRC-R324.3. 11. Provide documentation to verify the attachment points of the mounting system are staggered (no check requires low snow and wind load location). 12. Provide Fire Classification-Rooftop-mounted photovoltaic panel systems shall have the same fire classification as the roof assembly required in Section R902 as per IRC-R324.4.2. 13. Provide required inspections as per City of Tucson Development Services Department. Electrical(E) Reviewer Please make corrections and resubmit. Resubmittal shall include a response letter. All code references are to those recognized by the 2018 IRC, City of Tucson Amendments to the 2018 International Residential Code" and "PV System Requirements" adopted by City of Tucson unless otherwise noted. Recommend clouding changes to speed up the rereview. 1. Provide note: "All code references to those recognized by the City of Tucson" as per PV System requirements adopted by City of Tucson. 2. Provide the exact wording and locations for any plaques which may be required for non co-located disconnects as per "PV System Requirements" adopted by City of Tucson. 3. Show the back feed breaker at the opposite end on the panelboard from the main feeder location and label “Do Not Relocate”, NEC 705.12 (B)(2)(3) as per "PV System Requirements" adopted by City of Tucson.. 4. Where is the "Rapid Shutdown" on the line diagram which requires identifying each component and circuit notating sizes and installation details (labeling locations) as per PV System requirements adopted by City of Tucson? 5. Provide third party electric plan approval from electrical underwriter. 6. Provide electric plan approval from Tucson Electric Power (TEP) Electric Utility provider. 7. Provide an appropriate Maximum Photovoltaic System Voltage (Voc x 1.14) NEC 690.7 and Table 690.7 (16 degrees F lowest ambient). Show a collector panel design with a corrected voltage maximum not exceeding 600 volts. Show an inverter with appropriate specifications for this calculation. 8. Sheet E-01 thru E-03 shows (1) #10 AWG EGC (Equipment Grounding Conductor). AC and DC grounding electrode conductor size must be equal to the DC supply conductors and not smaller than #8 (copper), NEC 690.47(A) and NEC 250.166 & 690.47(B) as per PV System requirements adopted by City of Tucson. 9. Provide the exact wording and location for the Power Source “Imp, Vmp, Vmax, Isc, Wmax” marking required by NEC 690.51. Provide identification of polarity, max. overcurrent device rating for module protection and with the following ratings: a. Open-circuit voltage b. Operating voltage c. Maximum permissible system voltage d. Operating current e. Short-circuit current f. Maximum power 10. Provide required inspections as per City of Tucson Development Services Department. If you require additional clarification regarding these comments, please contact Doris Benoit at doris.benoit@tucsonaz.gov |
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| 11/25/2022 | PDSD Application Completeness | REVIEW COMPLETED |