5 sf re-roof () for (e) sfd if a re-roof project is proposed, the following specifications apply. Existing roofing material composite over strip sheathing proposed roofing material composite shingles (remove the strip sheathing put new structural sheathing felt) manufacturer owens corning brand and model oakridge color (if cool roof required) grey 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 note self-certification by a licensed contractor is acceptable if a signed letter on company letterhead is provided to the building inspector.