27 sf re0roof (hra) for (e) sfd. If a re-roof project is proposed, the following specifications apply. Existing roofing material: comp shingles proposed roofing material: comp shingles manufacturer: owens corning brand and model: er 2453 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): install radiant barrier in attic 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.