The head rough opening is prepared with a high-temperature resistant impermeable self-adhered waterproofing membrane lapping over a continuous structural angle. A 16mm pressure-treated plywood window header sits beneath a steel stud opening framing lintel. Twenty-five millimeter thick stone wool insulation runs continuously along terminations above an insulated metal panel base trim with mastic sealant. A pre-finished metal drip flashing with a return to the opening integrates with exterior and interior caulking joints featuring backer rods. A return vapor barrier flashing ties into the aluminum curtain wall head mullion, while an aluminum entrance door adapter connects to the entrance door. Peel and stick window flashing tape laps over the self-adhered air and moisture barrier to maintain positive drainage.
STEEL STUD OPENING FRAMING LINTEL AT EXTENT OF CURTAIN WALL OPENING CONT. "J" TRIM AT PERIMETR OF WINDOW OPENING CAULK AND SEAL TO ADJACENT CURTAIN WALL 16mm P.T. PLYWOOD WINDOW HEADER PERIMETER OPENING RUBERIZED ADHESIVE CONT. AIR / MOISTURE BARRIER REF. TO ASSEMBLY SCHEDULE INSULATED METAL PANEL BASE TRIM, c/w MASTIC SEALANT TO BOTH SIDES PRE-FINISHED METAL DRIP FLASHING c/w RETURN TO OPENING PREPARE HEAD R.O. WITH HIGH-TEMP. RESISTANT IMPERMEABLE SELF-ADHERED WATERPROOFING MEMBRANE LAPPING OVER THE CONTINIOUS STRUCTURAL ANGLE. MAINTAIN POSITIVE LAP WITH WALL ASSEMBLY SELF-ADHERED AIR & MOISTURE BARRIER INTERIOR CURTAIN WALL CAULKING JOINT c/w BACKER ROD RETURN VAPOR BARRIER FLASHING TO FRAME OF ALUMINUM CURTAIN WALL HEAD MULLION IMPERMEABLE SELF-ADHERED AIR AND MOISTURE BARRIER TO LAP OVER SELF-ADHERED MEMBRANE AND FLASHING UPSTAND. EXTERIOR CURTAIN WALL CAULKING JOINT c/w BACKER ROD EXTERIOR INTERIOR ALUMINUM ENTRANCE DOOR REF. TO GLAZING AND DOOR SCHEDULE CURTAIN WALL CONT. STRUCTRAL ANGLE. REF. TO GLAZING SHOP DRAWINGS 25mm THICK STONE WOOL INSULATION INSTALLED CONTINOUSLY ALONG TERMINATIONS ALUMINUM ENTRANCE DOOR ADAPTER REF. TO GLAZING AND DOOR SCHEDULE W6 PEEL & STICK WINDOW FLASHING TAPE, LAP OVER SELF-ADHERED AIR & MOISTURE BARRIER
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