An aluminum vertical mullion ties back to a concrete wall jamb with a two-inch clearance and a three-quarter-inch shim space sealed with sealant and backer rod on both sides. One-inch insulated glazing fits into the framing system, with horizontal mullions visible beyond. The interior side abuts the concrete wall while the exterior features the framed glass assembly.
VERTICAL MULLION 1" INSULATED GLAZING HORIZONTAL MULLION BEYOND INTERIOR CONCRETE WALL 7 1/4" 3/4" 2" 3/4" SHIM SPACE; SEALANT & BACKER ROD BOTH SIDES EXTERIOR
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