Firebreak Gypsum Wall

[rbunch4468]

I want to install 5/8” Type X firebreak gypsum on my garage wall adjacent to the main house. The wall is framing on the upper portion, but the bottom most few feet are cinder block. My question is about proper installation of the gypsum board. Should I use either a hat channel, or firming strip, or just use construction adhesive on the blocked area? The block is flush with the face of the studded portion of the wall.

 

[The Cobbler]

you don't need to cover the block portion, unless you're doing if for aesthetics
you should probably find out your local requirements on what code is

 

[glentre]

Yes to the code issue. In the 1980"s when renovating our manufacturing building, they made us put two layers of fire rated drywall on each side of the wall from the office to the factory area. I'm sure residential codes are not that strict but they do vary from place to place. Better be sure before going ahead.

Glen

 

[rbunch4468]

The wallboard over the block will be for aesthetics... yes. The previous construction I’m removing was crappy wood paneling stapled directly to the studs. We’ve been in this house 4 years, and I have never liked this approach. Since I pulled the paneling, I want to go back up with a finished wall full height. While I’m at it, I’m using Type X. This is a common wall between garage and living space in SC.

 

[paredown]

The wallboard over the block will be for aesthetics... yes. The previous construction I’m removing was crappy wood paneling stapled directly to the studs. We’ve been in this house 4 years, and I have never liked this approach. Since I pulled the paneling, I want to go back up with a finished wall full height. While I’m at it, I’m using Type X. This is a common wall between garage and living space in SC.

I have compulsive tendencies--but I would fur it out (glue and tapcon the furring strips) and then screw all of it for a smooth in-plane look.

Type X on a attached garage wall inside and out is code in some places. The concern was combustibles in the garage leading to fire jumping to the house. And inside access doors from garage to living space were required to be fire rated and have an automatic closer for the same reason. This is code around here in NY--and I think California too?

If I remember my old training--two layers of type X, properly screwed and taped is a true 1 hr fire-rated assembly...

 

[nadogail]

My houses in California were built (2000-2008) with self closing fire rated doors between the living area and the attached garage. They were tract houses by different developers and I am sure they were built to meet the lowest possible cost of construction.

 

[The Cobbler]

on the block wall I would put dabs of drywall compound every 16"ish. nail drywall on with 1" concrete nails