If a re-roof project is proposed, the following specifications apply. Existing roofing material proposed roofing material certain teed manufacturer brand and model landmark tl icc-er-138p color (if cool roof required) n a built-up roofing assembly system number per attached listing report (if applicable) specific exemption from cool roof requirements (if applicable) existing r48 in roof ceiling required building inspector field verification (if applicable) yes. Verify existing roof insulation note self-certification by a licensed contractor is acceptable if a signed letter on company letterhead is provided to the building inspector.