An aluminum curtain wall system mullion ties into a metal stud wall extension with shims as required for leveling. Exterior insulation finish system over compatible adhesive applies over a water-resistive barrier and glass-mat gypsum sheathing board, with a drainage system per manufacturer's specifications. A pre-finished aluminum flashing to match the mullion incorporates a drip edge above the storefront glazing. Backer rod and sealant seal the interior joint between the framing and the window head. Cavity insulation installs within the metal stud framing per energy calculations, behind an outline of future finish.
INSULATION, PER ENERGY CALCULATIONS METAL STUD FRAMING DRIP SHIM, AS REQUIRED INTERIOR BACKER ROD AND SEALANT OUTLINE OF FUTURE FINISH NOTE: ANY PENETRATIONS IN WATER PROOFING MEMBRANE/WRB SHALL BE FULLY SEALED. INSULATED GLASS BUILDING LINE BEYOND ALUMINUM CURTAIN WALL SYSTEM MULLION EXTERIOR INSULATION FINISH SYSTEM OVER COMPATIBLE ADHESIVE, PROVIDE DRAINAGE SYSTEM PER MANUFACTURER'S SPECIFICATIONS WRB OVER GLASS-MAT GYPSUM SHEATHING BOARD EXTERIOR METAL STUD WALL EXTENSION PRE-FINISHED ALUMINUM FLASHING TO MATCH MULLION
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