44 sqft re-roof to (e) sfd. If a re-roof project is proposed, the following specifications apply. Existing roofing material comp shingles torch down proposed roofing material comp shingles torch down manufacturer owens corning jm appex brand and model tru def duration appex 4. 5m color (if cool roof required) antique silver, shingles crrc #0890-0011 built-up roofing assembly system number per attached listing report (if applicable) n a specific exemption from cool roof requirements (if applicable) low slope exempt 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.