18 sf re-roof for (e) sfd if a re-roof project is proposed, the following specifications apply. Existing roofing material comp shingle proposed roofing material comp shingle manufacturer gaf brand and model timberline hd color (if cool roof required) tan (sandalwood) built-up roofing assembly system number per attached listing report (if applicable) specific exemption from cool roof requirements (if applicable) required building inspector field verification (if applicable) crrc# 0676-0133a note self-certification by a licensed contractor is acceptable if a signed letter on company letterhead is provided to the building inspector.