Architectural · A-JSNKS

Two-Hour Rated Partition Intersection at Curtain Wall Mullion

Materials

Elements

Walls Partitions Doors Windows Curtain Walls Floors / Slabs Insulation

About this detail

A two-hour rated interior partition terminates at an exterior aluminum curtain wall mullion with a pre-finished aluminum window frame system and insulated glazing. The joint between the partition and the mullion assembly is sealed with two inches of mineral wool safing insulation having a minimum eight pounds per cubic foot density. An aluminum breakshape with a snap-on cover bridges the curtain wall mullion to the rated wall finish, extending one inch beyond the firesafing material. Additional components include a one-inch by one-inch angle, a caulking joint at the partition perimeter, quarter-inch thick black two-way tape, window film, and a glass door system at the concrete slab edge.

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