Mechanical · M-RPHJ9

Fire Damper Installation at Wall Penetration

Materials

Elements

Walls Doors Waterproofing / Flashing Insulation Connections / Plates

About this detail

A vertical curtain-type fire damper is set inside a wall sleeve that penetrates a rated wall assembly. Retaining angles secure the sleeve to the wall on both sides, with sealant applied at the perimeter. The connecting ductwork uses a breakaway connection to prevent duct collapse from pulling down the wall assembly during a fire. For insulated ductwork, insulation and a protective jacket extend up to the wall on all sides, sealed with vapor barrier tape applied after inspection is complete.

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