35 sf re-roof () for (e) sfd. If a re-roof project is proposed, the following specifications apply. Existing roofing material concrete tile proposed roofing material asphalt shingles manufacturer gaf brand and model timberline ultra hd color (if cool roof required) birchwood crrc #0676-0096 built-up roofing assembly system number per attached listing report (if applicable) n. A specific exemption from cool roof requirements (if applicable) no required building inspector field verification (if applicable) yes complete roof note self-certification by a licensed contractor is acceptable if a signed letter on company letterhead is provided to the building inspector.