1. General Scope • Contractor shall furnish and install new windows at locations #1–20 as shown in the Window Index. • Windows #1–2 and #5–20 shall be fixed (picture) type. • Windows #3–4 shall be operable (horizontal sliding) kitchen windows. 2. Demolition and Preparation • Remove all existing window units, including frames, glass, exterior stops, and trim. • Prepare rough openings by removing debris and loose materials. • Apply black polyurethane sealant to all rough openings prior to new installation to ensure air and moisture sealing. 3. New Window Installation • Provide and install new dual-pane insulated glass units (IGUs) for windows #1–20, except as noted below. • IGUs shall be constructed with the following glazing: o Fixed Windows (#1–2, #5–20): 1" overall IGU: ¼” LoE 366 / TPS spacer / ¼” clear glass Filled with argon gas, with clear finish o Kitchen Operable Windows (#3–4): Horizontal sliding units with thermally broken, bronze-anodized aluminum frames Glazing: 1/8” LoE 272 / TPS spacer / 1/8” clear glass (total ¼” thickness) Include full insect screens.
