32 s. F. Reroof for existing s. F. If a re-roof project is proposed, the following specifications apply. Existing roofing material built up proposed roofing material joihns mansville dibiten poly 4. 5 fr manufacturer johns manville brand and model class a w 15 32 deck incline = 1 2 base sheet two piles g2 "pp28 glass base or dibi glass base color (if cool roof required) built-up roofing assembly system number per attached listing report (if applicable) mechanically fastened or hot mopped specific exemption from cool roof requirements (if applicable) required building inspector field verification (if applicable) low slope zone note self-certification by a licensed contractor is acceptable if a signed letter on company letterhead is provided to the building inspector.