2600sf reroof if a re-roof project is proposed, the following specifications apply. Existing roofing material composition proposed roofing material composition manufacturer owens-corning brand and model oakridge color (if cool roof required) shasta white built-up roofing assembly system number per attached listing report (if applicable) estr-1372 specific exemption from cool roof requirements (if applicable) na required building inspector field verification (if applicable) cool roof crrc# 0890-0002 note self-certification by a licensed contractor is acceptable if a signed letter on company letterhead is provided to the building inspector.