Strip all existing shingles. Apply new winterguard ice & water shield to all eves valleys and all flashing areas. 6 at bottom of roof. Install new 8" aluminum drip edge to the entire perimeter of the roof and rake trim. Apply new roofers select felt tar paper to the entire roof surface above the ice & water shield. Install new aluminum pipe flanges to all exhaust pipes on the roof. Install complete new lead and step flashing around entire chimney area. Apply new gaf timberline pewter grey architectural shingles to the roof. Cut out ridge if needed for ridge venting. Install mesh cobra vent for proper ventilation.