1 hr fire rated wall assembly - wet location

[rktect 1]

I was wondering if anyone knew of a 1 hr fire rated wall assembly for wet locations. Situation is a 5 story building with 1 hr fire rated corridors with apartment/condo unit that wants to turn a simple bathtub into a shower enclosure using tile. The tub is along the rated corridor. Type 1A construction. Built 30-40 years ago. What is that UL wall assembly number?

Sorry, I had to correct this post.

 

[mtlogcabin]

Today's code only requires a 30-minute rating in a sprinklered building. If it is sprinklered and there is a head in the bathroom I would not be concerned about installing tile on the existing wall.

 

[RLGA]

Most assemblies specify a generic Type X gypsum board, which you can obtain from virtually all manufacturers that conform to the requirements of IBC Table 2509.2.

 

[Paul Sweet]

UL U329 has 1/2" Durock + 1/4" tile on one or both sides, or 5/8" type X on the other side.

https://www.usg.com/content/dam/USG_Marketing_Communications/united_states/product_promotional_materials/finished_assets/durock-cement-board-system-guide-en-SA321624.pdf

page 4

 

[Inspector Gadget]

What's wrong with using exterior-grade 5/8" Type X drywall?
There are several clients in my area using that for lobster-holding and fish-processing facilities.