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Partywall detail

Hilton5

Structural
Jun 24, 2022
5
Does anyone know if there is a firewall/partywall requirement in a residential structure between the house and garage? Does it require a thickened slab being the foundation is monolithic poured, the wall is not load bearing, more of a seperator than anything
 
Great question for an architect!

I’m no architect, but I can google:
2018 IRC R302.6
 
In my market, it is just 5/8" sheetrock on the garage walls and ceiling.
 
In my market, it is just 5/8" sheetrock on the garage walls and ceiling.
5/8" Type X...but yeah, not sure if you can buy 5/8" that isn't "fire code" anymore...
 
OP's card says "from US" . My state building code has some detailed requirements.
I'm guessing yours does too.
 
Yep. It requires 5/8" Type X (or other fire rated) drywall if there are rooms above, 1/2 drywall on the sides (though most architects use 5/8" type x on the walls, too). There are additional requirements for penetrations and duct work, but the OP is structural engineer asking about the wall assembly.
 
In NJ they require double 5/8 Type X for ceilings. Not sure if that is common in other states.
 

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