Putting up 3/8″ drywall over plaster and lath walls in 1920’s house. We found all the studs, shimmed and straightened everything. Looks great. But… one corner has no wood at all. It is plaster or concrete (in good shape) smoothed over an old brick chimney. The chimney is non functional – top has been removed. From looking in the attic, you can see that the bricks are old, mortar pretty brittle and it’s filled with soot. The last thing I want to do is bang or drill holes into this thing. I know I could build a stud wall to encase it but the room is small enough as it is and then there’s a closet to deal with. Is there any chance that gluing a 3/8 drywall sheet and bracing it with properly screwed in top and bottom molding would work? I picked up some liquid nails drywall adhesive. Any words to the wise? Thank you!
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You could just glue it and brace against a wall. would want to clean and rough up the surface to prep for adhesive. then brace until the adhesive sets.
something like what I did in my basement to adhere some insulation sheets to a parged block wall
wow! That's good bracing! Thanks for the photo and the cleats idea.
YOu could also use some temporary cleats on the ceiling or wall to hold the edges while it sets and then remove them.
I have installed Insofast panels on block basement walls using Loctite PL Premium’s 3X Stronger Construction Adhesive. Their instructions do not call for bracing. Panels were covered with drywall five years ago. Still adhered to walls with no problems.
I assume the glue will work fine. Maybe do a test piece to ensure you'll get adhesion before fully committing to the whole thing. Good luck.
If you planned to hang some heavy stuff on that wall (or, perhaps you wife has such plans, have to ask her)
Might want to go ahead and use some flat head tapcons to secure wood strapping to the wall, then hang the drywall. You could use some PL premium or other poly adhesive to help secure the wood strapping to the existing surface.
This would also be a better idea if the current wall has straightness or plumb issues. you can shim the strapping to make the wall closer to plumb and flat.