An aluminum storefront vertical mullion connects adjacent glazing and framing assemblies, aligning with an adjacent metal door panel operating on an offset pivot. Unfaced mineral wool board insulation fills the cavity behind fiberglass sub-girts, maintaining thermal continuity. A continuous vertical AB-02 strip seals sub-girt penetrations. Interior and exterior partitions establish dimensional alignment across the transition.
ALUM STOREFRONT VERTICAL MULLION 1/8" 6" 1/4" MTL DOOR PANEL OFFSET PIVOT AB-01A OR AB-01B UNFACED MINERAL WOOL BOARD INSULATION, INS-01A 1/4" 4" 2" ALIGN 7 1/8" 1 1/2" 8 3/4" CONTINUOUS VERTICAL AB-02 STRIP AT SUB-GIRT PENETRATIONS FIBERGLASS SUB-GIRT EXT. INT.
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