Hra- 27 sqft re-roof for existing sfd if a re-roof project is proposed, the following specifications apply. Existing roofing material: comp proposed roofing material: comp manufacturer: owens corning brand and model: duration color (if cool roof required): shasta white 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): yes note: self-certification by a licensed contractor is acceptable if a signed letter on company letterhead is provided to the building inspector.