Entire shingled roof & rear lower roof: remove existing material down to wood decking. Adhere ice storm shield to roof edges. Re- roof uning gaf eik hd llifetime timgerline dimensional shingles (weathered wood cedar, timberline shape). Refoof rear lower roof w mineral surfaced modified bitumen roofing system. Retain bargeboard. Work to be done in accordance with philadelphia historical commissions guidelines and approved plan. Install new roof cover as per manufacturers specifications. . New roof coverings shall not be installed without first removing all existing layers when the roof has two or more applications of any type of roof covering. Submit roof certification to inspector for final inspection.