1HR INTERIOR WALL

[Alejandro Bustamante]

Does an interior 1 hr fire rated non-bearing wall need type X Gyp. Bd. on both sides?

Thank you.

 

[mtlogcabin]

Normally yes however it will depend on the assembly you choose
There are assemblies that do not include studs GA WP 1311 and 1330

 

[Alejandro Bustamante]

So the wall between the Garage and the livable space in a residence has to have Gyp. Bd. Type X on both sides?

 

[mtlogcabin]

It only has to be half inch regular drywall not type X

 

[ICE]

Is there living space above the garage? Is this a single family dwelling?

 

[classicT]

Does an interior 1 hr fire rated non-bearing wall need type X Gyp. Bd. on both sides?

Thank you.

So the wall between the Garage and the livable space in a residence has to have Gyp. Bd. Type X on both sides?

We need more information to answer your questions...

Is this a single family dwelling? What code is enforced in your area? Is this new construction or existing?

 

[rktect 1]

You need a rated assembly. If it specifies type X, then that is what you use.

 

[rktect 1]

Does your city require a one hour rated wall between the garage and living space? The village I work in only requires 5/8" type X on the garage side, not a 1 hr rated wall.

 

[Alejandro Bustamante]

You mean the the gyp. bd facing the livable space. Right?

ICE, yes there is a livable space above the garage.

 

[mtlogcabin]

Below is what the IRC requires CA is a different animal and maybe more restrictive

R302.6 Dwelling/garage fire separation.
The garage shall be separated as required by Table R302.6. Openings in garage walls shall comply with Section R302.5. This provision does not apply to garage walls that are perpendicular to the adjacent dwelling unit wall.

TABLE R302.6
DWELLING/GARAGE SEPARATION


SEPARATION MATERIAL
From the residence and attics Not less than 1/2-inch gypsum board or equivalent applied to the garage side
From all habitable rooms above the garage Not less than 5/8-inch Type X gypsum board or equivalent
Structure(s) supporting floor/ceiling assemblies used for separation required by this section Not less than 1/2-inch gypsum board or equivalent

 

[Alejandro Bustamante]

Thanks to all. Your answers helped me!!!

 

[mark handler]

Below is what the IRC requires CA is a different animal and maybe more restrictive

Depends on the jurisdiction; some have Up'ed to 5/8" some allow the 1/2 inch.