Sprinklers in Attic for Gas-Fired Mech. Equipment?

1/24/2020

Working on a fire house that is fully-sprinklered, non-separated construction type V-B, wood construction, R-2, S-1 & S-2 classifications, with R-2 being the most restrictive. We have 83 total occupants. IBC 2015.

We have a full- sprinklered attic with a nitrogen generator. We have gas-fired mechanical equipment in the attic.

My question is that the contractor is suggesting to VE the attic sprinkler by installing fire treated roof sheathing. IBC 903.2.8.3.2 "Attics not used for living purposes, storage or fuel-fired equipment." tells me that we are required to have them. Am I incorrect?

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4 Comments

Paul Pinigis

1/24/2020 10:43:12 am

If you remove the sprinklers from the attic, this will not longer be a sprinklered building. Will the building meet all of the Building Code requirements (construction type, height, area, egress distances, etc.) without being sprinkler protected? Having sprinklers only in a portion of the building means that the building is not sprinklered.

Mike

1/25/2020 01:37:59 pm

Under what logic or code interpretation does a fire resistive roof allow the elimination of fire sprinkler?
Isn't the attic still built with combustible foor joists and or plywood flooring?

If this were 13R or D, a sprinkler is still required over fuel fired equipment in the attic.

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12/28/2020 11:52:46 pm

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1/10/2021 11:42:06 pm

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Sprinklers in Attic for Gas-Fired Mech. Equipment?

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