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Filling hollow Concrete walls with silicone
Know-It-All
· Västra Götaland
· 12 296 posts
Sure that it's silicone they're filling with? That sounds strange.
Know-It-All
· Västra Götaland
· 12 296 posts
Hmm clearly strange. It's probably not a problem but I wouldn't choose silicone there if I did the job.
Just a tip, I actually had a hard time understanding what you wrote, I had to read it several times.
Everywhere you've written "dem" it should have been "de".
If you're very unsure about "de" and "dem," switch to colloquial language and write "dom" for both, it usually makes it easier to read, as it becomes like listening then.
And regarding your question.
I assume it is plastered with something cement-based, then no silicone or glue products are compatible.
Tell them they must tear down the plaster where they have gotten voids and replaster, you will not pay for a job that you have to redo later, to have it professionally done.
And if they use silicone, it becomes more difficult to fix, nothing adheres where silicone has been nearby, so then it will be necessary to knock off even more plaster and possibly tear off the stone/concrete underneath as well.
Everywhere you've written "dem" it should have been "de".
If you're very unsure about "de" and "dem," switch to colloquial language and write "dom" for both, it usually makes it easier to read, as it becomes like listening then.
And regarding your question.
I assume it is plastered with something cement-based, then no silicone or glue products are compatible.
Tell them they must tear down the plaster where they have gotten voids and replaster, you will not pay for a job that you have to redo later, to have it professionally done.
And if they use silicone, it becomes more difficult to fix, nothing adheres where silicone has been nearby, so then it will be necessary to knock off even more plaster and possibly tear off the stone/concrete underneath as well.
If it's an older house with wood wool insulation in the basement, it sounds hollow under the render, just as a note. PL600 is an adhesive, not silicone, but regardless, it sounds strange what they're up to.Mikael_L said:
The only thing to consider first is what AndersS wrote, that there is a basis for plaster that in itself gives a hollow sound, even with properly applied plaster. But on concrete, concrete blocks, Leca, and many other bases, it should not sound hollow when you tap.
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