Dee Posted September 14, 2023 Share Posted September 14, 2023 Hi Creating an ensuite. What subfloor do I put direct onto floor joists? No underfloor heating Marine ply is very expensive and as usual I'm on a budget! But must do it right! Link to comment Share on other sites More sharing options...
markc Posted September 14, 2023 Share Posted September 14, 2023 (edited) Caberfloor then seal with Aquaseal or similar liquid tanking stuff. Edited September 14, 2023 by markc 1 Link to comment Share on other sites More sharing options...
Dee Posted September 14, 2023 Author Share Posted September 14, 2023 Chipboard???? Link to comment Share on other sites More sharing options...
markc Posted September 15, 2023 Share Posted September 15, 2023 14 hours ago, Dee said: Chipboard???? Yes, moisture resistant makes sense as it’s not that much more anyway. Unless you are looking to have a bare floor varnished or something then you would need marine ply. Link to comment Share on other sites More sharing options...
Dee Posted September 15, 2023 Author Share Posted September 15, 2023 Great. Thanks for your input. Don't shoot me down but I'm pondering using composite woodgrain decking?! Link to comment Share on other sites More sharing options...
markc Posted September 15, 2023 Share Posted September 15, 2023 18 minutes ago, Dee said: Great. Thanks for your input. Don't shoot me down but I'm pondering using composite woodgrain decking?! Couple of problems spring to mind, as the water will go between the decking boards you will need a drain underneath and need everything under the decking (and part way up the walls to above decking height at least) to be fully sealed/tanked. decking boards are not easy to keep clean and soap/skin/shower crud may be a pain Link to comment Share on other sites More sharing options...
jayc89 Posted September 15, 2023 Share Posted September 15, 2023 (edited) I'm going for moisture resistant caber floor and tanking around wet areas (bathroom and shower area) Edited September 15, 2023 by jayc89 2 Link to comment Share on other sites More sharing options...
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