J
jon4727
I am renovating a 1950's semi (ex-council). The ground floor is a concrete slab with marley tiles, stuck down with a thin layer of tar-like material. Basically like in these threads:
https://www.diynot.com/diy/threads/concrete-floor-with-bitumen-paint-more-bitumen-or-seal.486497
https://www.diynot.com/diy/threads/rising-damp-from-concrete-floor.471076/
I want to:
I havn't mentioned adding a DPC. From what I understand, in the original build there was either no damp proofing layer (natural evaporation was relied upon to prevent water buildup, or the tar and tiles themselves acted as a crude DPC, explanations differ). In my house there are areas where the tiles have already been removed, and no damp is evident. The question is: do I really need to put down a DPC (which would also presumably need priming and screeding on top) if the concrete is in a good condition?
https://www.diynot.com/diy/threads/concrete-floor-with-bitumen-paint-more-bitumen-or-seal.486497
https://www.diynot.com/diy/threads/rising-damp-from-concrete-floor.471076/
I want to:
- Remove the tiles, exposing the tarry concrete.
- Paint on a sealant of some kind to ensure no asbestos fibres are released from the tar.
- Install underlay and laminate flooring directly on top.
I havn't mentioned adding a DPC. From what I understand, in the original build there was either no damp proofing layer (natural evaporation was relied upon to prevent water buildup, or the tar and tiles themselves acted as a crude DPC, explanations differ). In my house there are areas where the tiles have already been removed, and no damp is evident. The question is: do I really need to put down a DPC (which would also presumably need priming and screeding on top) if the concrete is in a good condition?