Hello everyone, Sorry if the rest of this post is full of stupid questions, I've just moved into my first house so I'm still pretty new to all this. The place is a ground floor maisonette complete with sqeeky laminate flooring. I've pulled up the laminate in one patch, which was T&G on top of a vapour barrier on top of the pine floorboards you can see in the images. My plan is to replace the laminate, probably with engineered hardwood, but there are a couple of things I'm unsure of: - does anyone know what the material below the pine subfloor is? it looks to me like there are "bricks" of something, maybe concrete, but I don't understand as if it was concrete wouldn't it just be solid? - do I need a dpm or a vapour barrier between whatever that material is, and the wood subfloor? - a slightly vaguer question: should I insulate the gap?
Depends how you plan to fit the Engineered, if the floor boards are level then you can float the engineered over the boards on an underlay like Duralay Multitex or Fibre Boards if you prefer. If you plan to fix the Engineered directly to the subfloor then 6mm ply over the floorboards and glue secret nail to the ply should be fine.
