An aluminum window system is integrated with stone cladding featuring a three-eighths-inch joint filled with backer rod and sealant. A three by four by one-quarter-inch angle supports the window blocking alongside shims as required. Two inches of spray polyurethane foam insulation and foam-plastic board insulation sheathing act as an air barrier with taped joints. A three-quarter-inch flat trim and backer rod with sealant finish the perimeter.
3/4" FLAT TRIM BACKER ROD & SEALANT ALUMINUM WINDOW; RE: SCHEDULE SHEATHING TAPE 2" SPRAY POLYURETHANE FOAM INSULATION FOAM-PLASTIC BOARD INSULATION SHEATHING AND AIR BARRIER, TAPE ALL JOINTS TO MAINTAIN A COUNTINOUS AIR BARRIER STONE CLADDING 3/8" JOINT. FILL WITH BACKER ROD & SEALANT. SHIM AS REQUIRED 3 X 4 X 1/4" ANGLE TO SUPPORT WINDOW BLOCKING SEAL WINDOW SYSTEM TO SHEATHING TAPE
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