Tear off 3 layers of existing roof and dispose of all debris remove existing power vent and fill area to match install cricket behind the chimney inspect decking substrate and replace as needed at 1. Per sq. Ft. Install gaf weatherwatch leak barrier 3 from eave, in the valleys and around all roofing penetrations install color baked drip enamel around perimeter and strip in with leak barrier (white) install gaf tigerpaw synthetic underlayment over the rest of roof to dry-in install gaf pro-start starter strips around the entire perimeter of roof install gaf timberline hd lifetime architectural shingles with 6 nail install (shakewood) install gaf cobra snow country ridge line exhaust ventilation system install gaf seal-a-ridge standard profile hip and ridge cap install all necessary l-metal, step flashings, and full metal pipe jacks install any necessary counter flashing install 16 eave cornice vents