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IstandOnPaintedTape t1_j1v751i wrote

Reply to comment by DirtyScoobie in Parking in Unfinished Basement by DirtyScoobie

At least 1/2in drywall with filled cracks all mudded and gaps filled. Foam or firecaulk applied where any plumbing or wires pass through the drywall.

Doors must be solid (20min fire rated)

All havc duct must be metal.

Edit: passage door from garage to the reast of the house should be 20 fire rated, and typically you want self closing hinges. (The hinges code has come and gone and come back again last i saw. It keeps out car fumes.)

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Boredbarista t1_j1w4kqc wrote

Garage ceilings require 2 layers of 5/8" if there is a living space above.

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IstandOnPaintedTape t1_j1w6z8r wrote

Not a bad idea, but not required from what i have seen in my state (idaho has lower standards generally, so im not surprised.)

I have never seen double layers of drywall.

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noncongruent t1_j1wccog wrote

I used double layers on my HVAC air handler closet along with an insulated steel door for noise abatement, and doubled the sheetrock on the bathroom walls as well for the same reason, along with insulating both sets of interior walls. Very quiet now, it was worth it.

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