26 sq ft re-roof if a re-roof project is proposed, the following specifications apply. Existing roofing material s. W. Concrete tile proposed roofing material s. W concrete "s" tile manufacturer boral roofing brand and model 1bccs79 boral concrete color (if cool roof required) red castle- crrc 0942-0016 built-up roofing assembly system number per attached listing report (if applicable) n a specific exemption from cool roof requirements (if applicable) no 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.