Architectural · A-JT4GY

Fire Rated Head of Shaft Wall Details

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A fire-rated shaft wall assembly terminates at a concrete-filled metal deck and fireproofed structural steel beam, incorporating a half-inch to two-inch joint filled with minimum four pcf density mineral wool in the flute cavity and finished with a fire-resistive joint spray. Metal straps and framing attachments secure the shaft wall assembly according to structural framing details and UL fire resistance designs UL HW-D-0642 and UL HW-D-0644. Details illustrate conditions parallel to flutes, perpendicular to flutes, and beneath a fireproofed beam.

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