Re-roof (no structural work) if a re-roof project is proposed, the following specifications apply. Existing roofing material asphalt shingle proposed roofing material asphalt shingle manufacturer owens corning brand and model oqakridge color (if cool roof required) built-up roofing assembly system number per attached listing report (if applicable) n/a specific exemption from cool roof requirements (if applicable) add r-19 for total of 12-38 required building inspector field verification (if applicable) veify added r-19 insulation total r-38 note self-certification by a licensed contractor is acceptable if a signed letter on company letterhead is provided to the building inspector.