gravelrash Posted March 12, 2021 Share Posted March 12, 2021 masonry walls, 200mm cavity with 3m opening and deciding on split lintel for inner cavity wall... which would be most thermally efficient, concrete or steel box? anyone with experience? Link to comment Share on other sites More sharing options...
PeterW Posted March 12, 2021 Share Posted March 12, 2021 Insulated steel box would be preferable. Link to comment Share on other sites More sharing options...
Moonshine Posted March 12, 2021 Share Posted March 12, 2021 (edited) 35 minutes ago, PeterW said: Insulated steel box would be preferable. Edit: ignore me. Edited March 12, 2021 by Moonshine Link to comment Share on other sites More sharing options...
gravelrash Posted March 12, 2021 Author Share Posted March 12, 2021 split/ separate lintels Link to comment Share on other sites More sharing options...
joe90 Posted March 12, 2021 Share Posted March 12, 2021 For our bifolds I used separate concrete lintels for each skin and have a 200mm cavity. Because ours is brick built i cut bricks into slips and stuck them on the outside to match. Link to comment Share on other sites More sharing options...
Oz07 Posted March 12, 2021 Share Posted March 12, 2021 1 hour ago, joe90 said: For our bifolds I used separate concrete lintels for each skin and have a 200mm cavity. Because ours is brick built i cut bricks into slips and stuck them on the outside to match. What length were these? Link to comment Share on other sites More sharing options...
joe90 Posted March 12, 2021 Share Posted March 12, 2021 58 minutes ago, Oz07 said: What length were these? 3meters 1 Link to comment Share on other sites More sharing options...
gravelrash Posted March 13, 2021 Author Share Posted March 13, 2021 Joe90# Did you access the various lintels for u values before deciding on concrete? 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