Quote:
Originally Posted by Wormius
Whatever was going on with our vent ductwork caused some condensation to drip back down and damaged the drywall around the bathroom fan. I was hoping that using a better material, if any issues arose, it wouldn't get turned to mush.
We had heard about that doubling up the sheetrock, but I wasn't sure if that was just a "hack" for lack of a better term. Is it common practice to layer over like that? I just don't want to get around to selling the house eventually and getting derogatory feedback from the home inspector.
If we did layer over, what is the process? Just scrape the texture off and lay it right against the old stuff with no other prep?
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Sounds reasonable. There is nothing wrong with layering drywall, as long as you aren't trapping moisture or missing the source. It's possible your vapour barrier is not as intact as it should be, in which case removing the existing drywall lets you fix it. Lots of times fans and fixtures are added and not properly sealed, taped etc.
As long as you don't have vermiculite I'd be tempted to pick away at a corner and pull the sheet rock off. Texture complicates it and needs to be wetted and scrapped off. If it's been painted over that's a bitch. Older sheetrock and spackle can have asbestos too, so you want to take precautions. How old is everything?
Doubling up drywall is common for creating firebarriers and sound reduction but there's no reason you cant do it for practical reasons.