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			<title>Green Building Forum - 4.5+ sqm 20mm thick aerogel insulation</title>
			<lastBuildDate>Wed, 27 May 2026 04:50:56 +0100</lastBuildDate>
			<link>https://www.greenbuildingforum.co.uk/newforum/</link>
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		<title>4.5+ sqm 20mm thick aerogel insulation</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18438&amp;Focus=310705#Comment_310705</link>
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		<pubDate>Tue, 26 May 2026 11:31:06 +0100</pubDate>
		<author>mdaley</author>
		<description>
			<![CDATA[I have around 4.5m² of surplus 20mm thick aerogel blanket rolled up.  I bought it for insulating a room where I didn't want to lose much space.  It is exceedingly efficient with a thermal conductivity of 0.017W/mK at 20°C, and it is A-rated for non-combustability.<br /><br />Given that it was rather expensive to obtain, I would like to sell this surplus.  I can see from the Passive House Store that, from them, it would cost around £230/m².  I'm willing to part with it for around half that as I need it to be out of the way.  So I would be happy to accept £500 for it.<br /><br />I can provide a spec sheet and a CE mark cert.<br /><br />There are various offcuts that could be used too.  I will throw these in free or you could negotiate a price if you just want a small amount.  For example, I've used small amounts when building extra insulation into existing doors.<br /><br />The way I used it was to place it between battens and put boards over the top.  It's on the internal side of an already insulated cavity wall so I decided to not be too worried about cold bridges from the battens and fixings.  Ideally you would want a continuous layer with no battens but all my attempts at this failed, given my lack of appropriate skill and experience.<br /><br />I prefer pickup from my location in Bristol.  Wrapping and transport would be hard as the roll is quite heavy.]]>
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		<title>4.5+ sqm 20mm thick aerogel insulation</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18438&amp;Focus=310706#Comment_310706</link>
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		<pubDate>Tue, 26 May 2026 11:32:47 +0100</pubDate>
		<author>mdaley</author>
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			<![CDATA[A picture...]]>
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