16 square asphalt shingle reroof if a re-roof project is proposed, the following specifications apply. Existing roofing material: comp sh proposed roofing material: comp sh manufacturer: gaf brand and model: timberline high def 0676-0098 color (if cool roof required): golden amber 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): note: self-certification by a licensed contractor is acceptable if a signed letter on company letterhead is provided to the building inspector.