Monty2468

Thanks for the info Mark

Thanks Nick, after the liquid DPM, do I then need SBR on top, or OK to just concrete onto the liquid DPM back to level ? Also, should I concrete in the small gap between floor and wall, or just use expanding foam ? Again thinking about cold air/damp tracking from wall to floor ? I appreciate the help

Our mid 60’s solid floor has broken up at the edges were the carpet gripper has been fitted, and I need to repair it without causing any damp issues. The floor consists of a thin tile on top of a black layer (15mm) of something ? On top of concrete. I was thinking of coating everything solid with SBR, then bringing back to level with a strong sharp sand mix, then painting on a liquid DPM ? Or have I got that wrong ? There is also a 5mm gap between the floor and the wall. Can I mortar this up as well to prevent drafts, or is it an expansion gap ? So maybe use either foam or a urethane sealant ? Thanks for your help