In my excavated basement, the ceiling is a cast slab where planks were used as a mold.
I am now going to smooth out the ceiling with filler, and my first problem is where the concrete has formed hanging seams between the planks.
Do I dare to go at it with a hammer and chisel to remove the seams, or is there a risk that I will create cracks in the ceiling/floor?
Is it perhaps better to use an angle grinder?
I am now going to smooth out the ceiling with filler, and my first problem is where the concrete has formed hanging seams between the planks.
Do I dare to go at it with a hammer and chisel to remove the seams, or is there a risk that I will create cracks in the ceiling/floor?
Is it perhaps better to use an angle grinder?
Hard to say without having seen them, concrete grinding on the ceiling seems like a hassle. I would have placed a thin batten and some finished ceiling. That way, you can also hide some cabling etc.
A concrete arch that is formworked with raw lumber boards, which was extremely common in the past, cannot be made smooth with a successful result unless it is a very small area. Use battens and panels if necessary instead.
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· Västerbottens län
· 18 051 posts
The worst stripes can be knocked off, the vault doesn't crack, but then you just paint it white, it's charming when you can see the grain and seams.
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