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How large holes can be repaired with gypsum filler in a porous plaster wall?
Hello,
I'm planning to retile the kitchen in my condominium from 1912, which started as a simple project. Unfortunately, I found a porous plaster wall, with reed and wire as reinforcement, behind the old tiles. Since part of the wall just crumbled, I've been forced to remove some plaster. And now, of course, I'm in the situation where the more you remove, the more becomes loose. At the hardware store, they suggested I repair with joint compound. My question now is how much of the old should I remove. The joint compound must be able to adhere. The alternative is to remove the entire section of wall that is between the sink and the upper kitchen cabinets and then install a drywall or wood panel. There's wood behind the plaster, so it's possible to fasten it. But the question is whether this affects the rest of the wall behind the cabinets and above.

:eek:
Take care
I'm planning to retile the kitchen in my condominium from 1912, which started as a simple project. Unfortunately, I found a porous plaster wall, with reed and wire as reinforcement, behind the old tiles. Since part of the wall just crumbled, I've been forced to remove some plaster. And now, of course, I'm in the situation where the more you remove, the more becomes loose. At the hardware store, they suggested I repair with joint compound. My question now is how much of the old should I remove. The joint compound must be able to adhere. The alternative is to remove the entire section of wall that is between the sink and the upper kitchen cabinets and then install a drywall or wood panel. There's wood behind the plaster, so it's possible to fasten it. But the question is whether this affects the rest of the wall behind the cabinets and above.
Take care
If it's too much, I would have considered replastering it, and for smaller "grooves" use plaster mix.
Recently retiled my kitchen with plastered wall behind and I tore down the plaster (bricks behind) and installed drywall. My plaster was very porous and almost all plaster came off with the tiles, hence the drywall.
Recently retiled my kitchen with plastered wall behind and I tore down the plaster (bricks behind) and installed drywall. My plaster was very porous and almost all plaster came off with the tiles, hence the drywall.
Probably, the plank wall behind the plaster is quite uneven. You could knock off all the plaster and then glue a gypsum board with plaster adhesive to the plank wall (apply plaster adhesive with a notched trowel and press the gypsum board there).
However, if the plank wall is even and nice, you can just screw the gypsum board in place.
However, if the plank wall is even and nice, you can just screw the gypsum board in place.
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