Green Building Forum - Roof and wall ventilation Mon, 25 May 2026 13:15:47 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 Roof and wall ventilation https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16882&Focus=286214#Comment_286214 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16882&Focus=286214#Comment_286214 Sun, 10 Jan 2021 17:44:38 +0000 tony Roof and wall ventilation https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16882&Focus=286333#Comment_286333 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16882&Focus=286333#Comment_286333 Wed, 13 Jan 2021 18:29:47 +0000 Mike1
Presuming the latter, then they don't always have to be ventilated - it depends on the permeability (and agrément certificates) of the products used.]]> Roof and wall ventilation https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16882&Focus=286348#Comment_286348 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16882&Focus=286348#Comment_286348 Thu, 14 Jan 2021 09:48:25 +0000 lineweight
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