Green Building Forum - External fittings on EWI Fri, 29 May 2026 21:20:30 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 External fittings on EWI https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=205973#Comment_205973 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=205973#Comment_205973 Wed, 23 Jul 2014 13:20:29 +0100 willie.macleod
I think from your numbers you are referring to vapour resistivity (MNs/gm)?

Looking at the numbers from the manufacturers, Jablite Premium EPS 70 comes in 145MNs/gm, Jablite Premium EPS 250 is 238MNs/gm.

Knauf Polyfoam Eco Extra XPS as you say is 600MNs/gm.

I think that PU foam lower numbers are likely to be the stuff out of cans and the like as you say foamed in place as it soaks up moisture when the skin is off quite a bit.]]> External fittings on EWI https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206743#Comment_206743 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206743#Comment_206743 Thu, 07 Aug 2014 21:21:00 +0100 Shevek External fittings on EWI https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206744#Comment_206744 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206744#Comment_206744 Thu, 07 Aug 2014 21:57:38 +0100 Shevek
What kind of stop bead can you fit around a gas flue pipe?]]> External fittings on EWI https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206749#Comment_206749 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206749#Comment_206749 Thu, 07 Aug 2014 22:33:56 +0100 fostertom External fittings on EWI https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206846#Comment_206846 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206846#Comment_206846 Sun, 10 Aug 2014 20:42:41 +0100 n2e4ewi External fittings on EWI https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206858#Comment_206858 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206858#Comment_206858 Sun, 10 Aug 2014 22:50:25 +0100 n2e4ewi External fittings on EWI https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206874#Comment_206874 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206874#Comment_206874 Mon, 11 Aug 2014 10:43:29 +0100 Shevek
Do we just use any old external silicone from builder's merchant? Are they all much of a muchness? High modulus, low modulus?]]> External fittings on EWI https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206877#Comment_206877 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206877#Comment_206877 Mon, 11 Aug 2014 11:28:51 +0100 n2e4ewi External fittings on EWI https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206881#Comment_206881 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206881#Comment_206881 Mon, 11 Aug 2014 12:00:07 +0100 Shevek External fittings on EWI https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206888#Comment_206888 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=8514&Focus=206888#Comment_206888 Mon, 11 Aug 2014 12:51:20 +0100 n2e4ewi