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  • Users: crivera8
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  1. crivera8

    Fire Smoke Damper for Shaft Enclosure

    Hello All, We have an outside air duct that penetrates a rated shaft enclosure (shaft connects 4 floors) and the OA duct goes straight up to the roof and discharges to the outside. The OA duct does not connect into any other floor on the way up to the roof. My question is if a fire smoke damper...

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