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			<title>Green Building Forum - Ventilation and breathability - healthy buildings</title>
			<lastBuildDate>Thu, 25 Jun 2026 09:19:20 +0100</lastBuildDate>
			<link>https://www.greenbuildingforum.co.uk/newforum/</link>
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		<title>Ventilation and breathability - healthy buildings</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=630&amp;Focus=6263#Comment_6263</link>
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		<pubDate>Tue, 04 Sep 2007 12:47:29 +0100</pubDate>
		<author>Peter Clark</author>
		<description>
			<![CDATA[Hi,<br />I just came across this very striking article 'Breathability: The Key to Building Performance' on this webpage<br /><br /><a href="http://www.naturalinsulation.co.uk/downloads.aspx?lc=English&pt=h" target="_self" rel="nofollow">http://www.naturalinsulation.co.uk/downloads.aspx?lc=English&pt=h</a><br /><br />It seems very interesting to me although I do not know anything about the author, Neil May, is or his relationship to the natural insulation company.<br /><br />Amongst other things he is recommending moisture control by hydroscopic buffering and he is looking again at active ventilation, AND passive ventilation.<br /><br />Modern timber frame and roof construction may be a 'nightmare'!<br /><br />At the end he has 4 principles of design.<br /><br />Very interesting reading for me, although I know many people here will be very aware of all this.<br /><br />Does anyone have an opinion? (ducks)<br /><br />Peter]]>
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