BotusBuild Posted November 10 Share Posted November 10 Has anyone used this for their UFH? https://theufhgroup.co.uk/products/tekwarm-lite-lp-ufh-board-1200mm-x-600mm We have 18mm T&G board down on upper floor already, with about 50-60mm space left for floor buildup inc UFH. This, or something similar is our way forward. Anyone used anything similar that they would recommend? Link to comment Share on other sites More sharing options...
Andehh Posted November 10 Share Posted November 10 I imagine you'd lay this, then 9mm board or something over the top and carpet? If upstairs it'd probably work, but if you can get an extra 10 or 20mm you'd benefit. You will also need to run warmer temps to feel the benefit. Link to comment Share on other sites More sharing options...
SteamyTea Posted November 11 Share Posted November 11 What is the thermal conductivity? I can't find it. Link to comment Share on other sites More sharing options...
BotusBuild Posted November 12 Author Share Posted November 12 On 11/11/2024 at 05:56, SteamyTea said: can't find it Hmm, neither can I. Have asked the question Link to comment Share on other sites More sharing options...
BotusBuild Posted November 12 Author Share Posted November 12 On 10/11/2024 at 21:28, Andehh said: upstairs is our living space (upside down well insulated house) On 10/11/2024 at 21:28, Andehh said: an extra 10 or 20mm would be possible. Link to comment Share on other sites More sharing options...
BotusBuild Posted November 13 Author Share Posted November 13 @SteamyTea The answer I got- the thermal conductivity value is 0.034W/mk. The boards are an XPS insulation with cement coating on two sides of the boards. Link to comment Share on other sites More sharing options...
SteamyTea Posted November 13 Share Posted November 13 23 minutes ago, BotusBuild said: thermal conductivity value is 0.034W/mk I would think that the point where the pipes are is very thin. Hottest point as well. Link to comment Share on other sites More sharing options...
BotusBuild Posted November 13 Author Share Posted November 13 Yes, I think it needs to sit on some other insulation as stated above, and maybe a thin hardboard layer before final floor on top Link to comment Share on other sites More sharing options...
SteamyTea Posted November 13 Share Posted November 13 Just now, BotusBuild said: Yes, I think it needs to sit on some other insulation as stated above About 150-200mm of PIR. 1 Link to comment Share on other sites More sharing options...
BotusBuild Posted November 13 Author Share Posted November 13 (edited) That's not going to work for us. We only have about 65mm to play with. We have 100mm R45 acoustic insulation between joists with 18mm ply t&g on top of the joists in situ already. This is upper floor living areas Edited November 13 by BotusBuild Link to comment Share on other sites More sharing options...
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