1. Removal and Disposal o Remove and properly dispose of all existing roofing materials down to the existing plywood decking in accordance with all applicable environmental and disposal regulations. 2. Decking Repair o Inspect all roof decking upon removal. o Replace any rotted or damaged plywood decking on a unit cost basis per square foot as specified in the bid form. 3. Underlayment Installation o Install ice and water shield at all eaves and valleys. o Install synthetic underlayment on the remaining roof surface. 4. Flashing and Edge Treatment o Install new aluminum drip edge and rake edge along all perimeters. o Flash all roof penetrations, including plumbing pipes, vents, and other openings, using compatible flashing materials and sealants. 5. Roof Shingles Installation o Install GAF Timberline HDZ architectural shingles or approved equal. o Provide additional nailing and hand-sealing as required for coastal wind conditions. 6. Hip and Ridge Caps o Install hand-sealed hip and ridge caps to match the selected shingle system and manufacturer’s specifications.
