NABCEP PVIP Question Answer
A rooftop PV array uses a ballasted racking system with a total weight of 4 psf. The roof’s maximum allowable load is 20 psf, including a snow load of 15 psf. Is this installation permissible?
NABCEP PVIP Summary
- Vendor: NABCEP
- Product: PVIP
- Update on: Oct 16, 2025
- Questions: 160