Hi Guys,
TLDR: How would I restore a sandstone/limestone (?) slab so that I could lay interior flooring. What kind of surface prep and would self levelling concrete work? Also what is the material that is used for the slab?
I have a standalone structure (5m*4m) that has previously been used as a shed that I now want to renovate it into an additional room.
The slab is not in the best condition and it is made out a sandstone/limestone kind of material instead of concrete. The paint comes off when it so much as touched. It seems like there are two layers separated by a sheet of plastic if that is any sort of indication to the type of material used. There are also several deep cracks along it.
So how would I go about restoring it? I have looked into self levelling concrete and seems like it could be a valid solution although I am a complete newbie and I may be missing something.
How would a prepare the surface? What type of sealant and the like.
At the moment my thought process would be to;
1. Remove the existing paint.
2. Sand down obvious bumps.
3. Apply a sealant and bonding agent.
4. Apply self levelling concrete.
5. Lay interior flooring.
Does this sound about right?
Thanks,
Caleb
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