Prewar council house, badly refurbished by the local authority about 10 years ago. New concrete floor put into the kitchen then.
The walls were rendered first, very thickly, right down to the ground, bridging the DPC.
The floor was then laid to the render. The concrete floor does not therefore actually reach the brickwork itself. Nor was the floor membrane turned up the wall - it simply touches it, with slight gaps here and there.
Having now removed the rotten render, I find that I'm left with a gap between the floor/membrane, and the brickwork. This is noticeably damp.
Obviously, the new plaster is not going down that low. This time it will stop above the DPC. It will also be thinner than the original render.
Could I just fill the gap between floor and brickwork with cement to which a little waterproofer has been added? (I've inherited some Silka liquid waterproofer, I assume that this would be good?).
The walls were rendered first, very thickly, right down to the ground, bridging the DPC.
The floor was then laid to the render. The concrete floor does not therefore actually reach the brickwork itself. Nor was the floor membrane turned up the wall - it simply touches it, with slight gaps here and there.
Having now removed the rotten render, I find that I'm left with a gap between the floor/membrane, and the brickwork. This is noticeably damp.
Obviously, the new plaster is not going down that low. This time it will stop above the DPC. It will also be thinner than the original render.
Could I just fill the gap between floor and brickwork with cement to which a little waterproofer has been added? (I've inherited some Silka liquid waterproofer, I assume that this would be good?).
