Conor Posted September 4, 2020 Share Posted September 4, 2020 We have a 250mm floor build up in our basement. The current design is 150mm PIR and 100mm S&C screed. Can I go to 175mm insulation and 75mm screed, or will that be too "bouncy"? Google suggests 75mm or even 65mm is OK. It's 115m2, and I'd rather be paying for insulation than screed.... and it's only £9 more per sheet to go from 100mm + 50mm to 100mm + 75mm. Link to comment Share on other sites More sharing options...
Declan52 Posted September 4, 2020 Share Posted September 4, 2020 Mine was 75mm on average across the floor. Some bits might have been near 70mm and others maybe 80mm. No bounce at all on with it. Link to comment Share on other sites More sharing options...
dpmiller Posted September 4, 2020 Share Posted September 4, 2020 or you could go poured and down to 50mm Link to comment Share on other sites More sharing options...
tonyshouse Posted September 4, 2020 Share Posted September 4, 2020 What is under the insulation? Link to comment Share on other sites More sharing options...
nod Posted September 4, 2020 Share Posted September 4, 2020 Same build up as ours 175 + 75 mil ish Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now