The head of a curtain wall intersects a composite metal deck floor slab. The assembly incorporates an aluminum expansion mullion at the slab edge alongside fire safing fill material and foil-faced mineral wool batt insulation for firestopping and thermal separation. A shadow box with a vision glass insulated glass unit backed by an aluminum panel connects to the spandrel zone, while an aluminum tuning fork mullion frames the vision glass below.
TYP. 2' 3" COMPOSITE METAL DECK FIRE SAFING FILL MATERIAL TYP. ALUMINUM EXPANSION MULLION ALUMINUM TUNING FORK MULLION SHADOW BOX, VISION GLASS IGU WITH ALUMINUM PANEL IN THE BACK FOIL FACED MINERAL WOOL BATT INSULATION VISION GLASS IGU
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