Sun, 03 May 2026 09:53:21 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309135#Comment_309135 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309135#Comment_309135 Sat, 30 Aug 2025 10:01:24 +0100 rsk1
https://www.ecologicalbuildingsystems.com/post/suspended-timber-floor-insulation-installation-underneath

Using orcon f to seal intello plus membrane to rough joists. I don't have enough to finish the job and don't have time to order more so looking for an alternative i can pick up from screwfix. A flexible acrylic sealant seems a not very demanding application. Would any old frame sealant do? Eg:

https://www.screwfix.com/p/no-nonsense-490-frame-sealant-white-310ml/754ru]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309136#Comment_309136 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309136#Comment_309136 Sat, 30 Aug 2025 12:38:25 +0100 djh https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309137#Comment_309137 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309137#Comment_309137 Sat, 30 Aug 2025 12:42:26 +0100 fostertom https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309138#Comment_309138 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309138#Comment_309138 Sat, 30 Aug 2025 13:29:06 +0100 Nick Parsons https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309139#Comment_309139 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309139#Comment_309139 Sat, 30 Aug 2025 13:30:27 +0100 Nick Parsons https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309142#Comment_309142 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309142#Comment_309142 Sat, 30 Aug 2025 15:58:33 +0100 fostertom Posted By: Nick ParsonsTry me.Turn the stud wall inside out - airtight sheathing on the outside, so joists don't penetrate it, no membrane anyway, and WUFI-design the rest of the buildup to not need a VCL. Still need to air-seal the airtight sheahed box to floor, adjoining building etc, and around windows. For that, Compriband-type expanding sealant strip, topped to be double-sure with big wodge of silicone sealant injected in depth into the 3mm gap, so even if it decays it'll probably still block it up. Then, service penetrations, never satisfactory.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309143#Comment_309143 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309143#Comment_309143 Sat, 30 Aug 2025 16:15:40 +0100 Nick Parsons https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309144#Comment_309144 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309144#Comment_309144 Sat, 30 Aug 2025 16:54:35 +0100 fostertom https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309145#Comment_309145 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309145#Comment_309145 Sat, 30 Aug 2025 19:27:14 +0100 revor
https://iask.ai/?mode=question

a lot since I found out about it. Go to the site and pop in your question being as precise as you can.

I have just done it for you. Answer here.

https://iask.ai/q/alternative-to-Orcon-F-adhesive-fp2hfbo]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309147#Comment_309147 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309147#Comment_309147 Sun, 31 Aug 2025 12:11:13 +0100 djh https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309243#Comment_309243 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309243#Comment_309243 Mon, 15 Sep 2025 01:37:26 +0100 wookey
It is particularly good for things like membrane to sawn joists. I guess I would try one of the hybrid silane sealants as an alternative. Soudal Fix-all is pretty-good stuff. High tack, good grab, doesn't care about water, remains somewhat flexible, available in toolstation and screwfix. Under £8/tube. I'd try using that instead. There are other silanes just as good. e.g. I quite like OB1 too (available from screwfix in several colours, £8-10/tube).

These are more adhesive than Orcon-F so you might find it will never come off in one piece, depending on what membrane is used.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309251#Comment_309251 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309251#Comment_309251 Mon, 15 Sep 2025 11:26:11 +0100 fostertom Posted By: wookey_very_ flexible for a very long time (decades)How do they know that?]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309265#Comment_309265 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309265#Comment_309265 Mon, 15 Sep 2025 20:49:53 +0100 djh https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309267#Comment_309267 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309267#Comment_309267 Mon, 15 Sep 2025 21:49:33 +0100 fostertom https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309270#Comment_309270 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18339&Focus=309270#Comment_309270 Tue, 16 Sep 2025 08:32:18 +0100 WillInAberdeen
https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18341]]>