18 sq. Ft. Res re-roof if a re-roof project is proposed, the following specifications apply. Existing roofing material asphalt shingles proposed roofing material asphalt shingles manufacturer owens corning brand and model tru definition color (if cool roof required) amber built-up roofing assembly system number per attached listing report (if applicable) n a specific exemption from cool roof requirements (if applicable) n a required building inspector field verification (if applicable) n a