Walk in coolers and drywall

[csatt90]

Been reading every thread I can but cant find this specific question. I am building a walk in cooler in my Dads shop. 6x10 x 8 tall. The corner we chose has two Insulated 2x6 walls (one interior, one exterior) with finished drywall. This will be a coolbot/window AC setup.

My question is what is the safest way to cover these walls to avoid moisture problems? My thought is vapor barrier on the drywall, followed by 1" foam panels with the seams sealed. Another idea is framing a small false wall with a small air gap (.5-1"?) between the cooler itself and the drywall. Or is it dumb to even consider a cooler this close to any drywall?

Like most on here, it will mainly only be used in the fall. So maybe I am overthinking it and moisture wont be a huge concern with minimal runtime?

Thanks in advance for any insight.

 

[jags]

Is there already a VB under the drywall? 6 mil poly or paper faced batt insulation? You want to be careful about having 2 layers of VB.

Otherwise you might put a 1" or 2" layer of rigid insulation board over the drywall to eliminate thermal transfer of hot//cold through wood studs and cover that with plywood or OSB. Than there are numerous coatings that could be utilized. Maybe finish it with FRP panels to give you a washable surface inside it.

 

[ReddingArcher]

What are you planning for the new walls? What’s behind the existing rock? Vapor barrier? I’d find that out first. On the new walls I’d use a fiber mat Sheetrock, something like dens armor plus or dens shield. I’d go FRP over that so I could wash it as needed. I’m a drywall contractor, feel free to pm or ask on here if you have any questions.

 

[Butcher44]

I built one a few years ago in my garage. It’s only 4x8 with 7’ cieling. Im no carpenter but it has held a lot of deer. I just used osb and put a wall up even against the drywall. No issues