Sat, 15 Aug 2026 23:48:20 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221271#Comment_221271 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221271#Comment_221271 Thu, 12 Mar 2015 22:13:52 +0000 Triassic
Should I be sealing the radon and DPL to each other and then sealing the sole plate to the damp proof course? For air tightness!

If so, what product would you use?]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221272#Comment_221272 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221272#Comment_221272 Thu, 12 Mar 2015 22:22:30 +0000 tony https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221279#Comment_221279 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221279#Comment_221279 Fri, 13 Mar 2015 06:58:11 +0000 Triassic
If I can get some sheets of Fermacell at the right price I may use that, rather than plaster board, to see what it's like to work with.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221287#Comment_221287 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221287#Comment_221287 Fri, 13 Mar 2015 09:37:46 +0000 tony https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221295#Comment_221295 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221295#Comment_221295 Fri, 13 Mar 2015 11:18:14 +0000 Triassic https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221296#Comment_221296 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221296#Comment_221296 Fri, 13 Mar 2015 11:22:37 +0000 Triassic https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221314#Comment_221314 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221314#Comment_221314 Fri, 13 Mar 2015 16:08:17 +0000 tony https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221318#Comment_221318 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221318#Comment_221318 Fri, 13 Mar 2015 17:22:56 +0000 Chris P Bacon
Sorry I don't have a brand name bu someone on here might recognise what I am on about!]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221334#Comment_221334 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221334#Comment_221334 Sat, 14 Mar 2015 09:26:00 +0000 djh Posted By: Chris P BaconWhen my timber frame was installed the company installing it used a seal under it that was the width of the wall section and was like a soft rubber with tubes running through it that was designed to act as both a DPM and airseal.

Sorry I don't have a brand name bu someone on here might recognise what I am on about!
I think that's fairly normal practice in many countries, but I forget exactly what the purpose is. Trelleborg is one brand, I think. But why do you need to airseal the studwork? Is it just for thermal bypass?]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221335#Comment_221335 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221335#Comment_221335 Sat, 14 Mar 2015 09:49:36 +0000 Chris P Bacon Posted By: djhBut why do you need to airseal the studwork?You can get sizeable gaps under the sole plate due to any warps or twists in the timber. I remember on my previous TF build the erectors packing gaps with slate in some spots.

The airtightness layer is inboard of this, so there is no danger in terms of the overall airtightness of the house but there is a risk of "wind washing" the insulation particularly in a case such as mine where mineral wool insulation is used and there is presumably also a condensation risk from humid air.


I should have guessed at Trelleborg having a solution especially as I live 15kms away from the town that gives the company it's name and where the HQ is!

http://www.trelleborg.com/en/Sealing-Profiles/Solutions/Other-Building/]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221402#Comment_221402 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221402#Comment_221402 Mon, 16 Mar 2015 18:45:48 +0000 djh Posted By: Chris P Bacon"wind washing"
Right, yes "thermal bypass" is the posh name for wind washing ]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221413#Comment_221413 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=13212&Focus=221413#Comment_221413 Mon, 16 Mar 2015 23:33:48 +0000 tony