16 sqft re-roof and 16 kw roof mount solar if a re-roof project is proposed, the following specifications apply. Existing roofing material tile proposed roofing material reuse tile & new underlayment manufacturer n a brand and model n a color (if cool roof required) n a built-up roofing assembly system number per attached listing report (if applicable) n a specific exemption from cool roof requirements (if applicable) reuse existing tile roof required building inspector field verification (if applicable) yes note self-certification by a licensed contractor is acceptable if a signed letter on company letterhead is provided to the building inspector.