4684 sq ft reroof for existing sfd if a re-roof project is proposed, the following specifications apply. Existing roofing material asphalt shingles proposed roofing material ashpalt shingles manufacturer owens corning brand and model trudefinition duration color (if cool roof required) amber, crrc product id #0890-0009 built-up roofing assembly system number per attached listing report (if applicable) specific exemption from cool roof requirements (if applicable) yes required building inspector field verification (if applicable) replace roof sheathing as required note self-certification by a licensed contractor is acceptable if a signed letter on company letterhead is provided to the building inspector.