Omgiamgoingtobuildahouse Posted December 17, 2020 Share Posted December 17, 2020 HI. We have an MBC insulated raft foundation. We are on heavy clay and the house is on a slight slope. We need to landscape when the weather is better but we need to back fill the trench around the house. What did everyone else use? Architect is saying shingle! but this isn't stable. 'Normal' houses wouldn't have this and they would be surrounded by the earth that surrounds the foundation so do we put that back in? Its quite claggy and lumpy though. We were thinking type 1 with some French drains. Any advice welcome. W did out own groundworks so I have no one to ask. Thanks for any help. Link to comment Share on other sites More sharing options...
joe90 Posted December 17, 2020 Share Posted December 17, 2020 Mine was not slab but we are on solid yellow clay, we backfilled our foundations with 50mm drainage stone as a French drain and a pipe to a local drainage ditch and it works very well. Link to comment Share on other sites More sharing options...
Dan F Posted December 17, 2020 Share Posted December 17, 2020 Think we used shingle around and over a land drain that was installed at the base of EPS, then just backfilled with spoils from formation dig. If the shingle stability an issue if it's 400mm down? 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