Existing Demising Wall - 1HR Rated

[Julia_Baranick]

Hi all. I am working on a commercial TI project (dental office). There is a medical gas closet that is located on a demising wall (we don't know if exist assembly is fully compliant). Anyway, med gas closet walls are required to be 1-HR rated. Any thoughts on what can be done to the demising wall to make it 1HR rated? Thanks!

 

[BN4537]

Demising wall is between tenant spaces? Without opening the wall to see what is there, it's hard to recommend a system. Was the demising wall built recently and inspected, or not?

You always have the option to build another wall inside the demising wall for your med gas closet.

 

[steveray]

If it is existing 5/8 drywall both sides, you are pretty much there other than it going to the deck and penetrations and dampers and......