Tommyt01

All of the downstairs floor will be coming out, so it’s pretty flexible on what we can do as the new slab will run throughout downstairs with regards to depths If it doesn’t need to be as thick as a dpm, Ill use polythene to keep the concrete off the pir boards

I can put the 200mm in if it would make a difference. i didn’t know if a se would make a set of drawings just for a floor build up? I will contact some locally to advise and purchase the drawings

I don’t have any drawings, this is to replace a uninsulated slab in the kitchen and wooden floors throughout downstairs

Hi all. I’ve been searching the forum and the internet to see what the best solid floor build up would be for Ufh, from what I have found, I’m thinking of going with type 1 sand binding dpm 150mm pir dpm Ufh stapled 100mm fibre reinforced concrete I’ve suggested this to a couple of companies and they have advised against it and it’s not the correct way it’s done and needs a concrete under the pir and a screed above. is what I’m suggesting correct or is there a better way? If it is, what spec of concrete would be needed? Cheers