37 sqft re-roof for (e) sfd if a re-roof project is proposed, the following specifications apply. Existing roofing material concrete villa tile proposed roofing material existing (tile relay) new underlayment and battons manufacturer interwrap, boral brand and model titaniu, udl so underlayment. Ebs color (if cool roof required) n a 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 -remove existing concrete tiles -replace underlayment -re-install existing concrete tiles