An aluminum storefront vertical mullion interfaces with exterior aluminum panels and unfaced mineral wool board insulation. The assembly incorporates a six-inch structural framing dimension with an overall depth of eight and three-quarter inches from interior to exterior. Fasteners secure the metal components while maintaining thermal insulation alignment.
1/8" 4" 2 1/8" 1" 1 1/2" ALUM PANEL 6" ALUM PANEL ALUM STOREFRONT VERTICAL MULLION UNFACED MINERAL WOOL BOARD INSULATION, INS-01A 8 3/4" EXT. INT.
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