4. Roof drainage: Roof-mounted solar PV systems shall not cause excessive sagging of the roof that results in water ponding. They shall also not block or impede drainage flows to roof drains and scuppers. (CBC Section 1611, CRC Section R903.4)
5. Roof penetrations:
All roof penetrations shall be sealed using approved methods and products to prevent water leakage. Such methods include but not limited to caulking, roof jacks, and sheet metal flashing. (CBC Section 1503.2, CRC Section R903.2)
6. Skylights:
Solar PV panels shall maintain a minimum clearance around the perimeter of skylights as not to interfere with the function of the skylight, as determined by the enforcing agency. (CBC Section 1205, CRC Section R303)
7. Plumbing vent, mechanical equipment, and mechanical exhaust terminations:
Solar PV panels shall not obstruct or interfere with the function of plumbing vents or mechanical equipment. (CPC Sections 901.1 & 906, CMC Section 304)
8. Guard rails:
When required by the enforcing agency, guard rails may apply to solar PV systems. (CBC1013.5).
9. Disabled access requirement.