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			<title>Green Building Forum - Deep but uninsulated flooring slab??  What is this called??</title>
			<lastBuildDate>Sun, 19 Apr 2026 03:19:50 +0100</lastBuildDate>
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		<title>Deep but uninsulated flooring slab??  What is this called??</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16791&amp;Focus=287321#Comment_287321</link>
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		<pubDate>Mon, 08 Feb 2021 20:55:44 +0000</pubDate>
		<author>Dominic Cooney</author>
		<description>
			<![CDATA[I suppose an uninsulated concrete floor slab (as in the current situation with this building) is always going to 'feel' cold compared to the room.<br />With being completely enamoured with UFH (put it in the last 2 places, really miss it in this farmhouse, so have put it in the stone barn conversion) perhaps we should go for a thin layer of foil-faced PIR and then UFH pipes to avoid too much of a floor build-up, whilst still doing the downstand EWI to foundations to minimise heat loss.]]>
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		<title>Deep but uninsulated flooring slab??  What is this called??</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16791&amp;Focus=287322#Comment_287322</link>
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		<pubDate>Mon, 08 Feb 2021 21:06:42 +0000</pubDate>
		<author>Dominic Cooney</author>
		<description>
			<![CDATA[At a guess (from my photo) there is about 600mm from the current finished internal floor level to the top of the strip foundations (3 courses of block, might be 4). On one side of the building this is all below ground, on the other it is almost all above ground!<br />Was thinking 200 or 300 EPS EWI<br />Would also be happy to come out horizontally from there with an EPS skirt but wondering how it compares cost wise with something like LECA.]]>
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		<title>Deep but uninsulated flooring slab??  What is this called??</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16791&amp;Focus=287324#Comment_287324</link>
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		<pubDate>Mon, 08 Feb 2021 21:17:55 +0000</pubDate>
		<author>djh</author>
		<description>
			<![CDATA[<blockquote ><cite >Posted By: Dominic Cooney</cite>I suppose an uninsulated concrete floor slab (as in the current situation with this building) is always going to 'feel' cold compared to the room.</blockquote><br />The feel of a surface is largely to do with its thermal admittance. Some surfaces, like concrete or stone, are inherently 'cold' because they conduct heat away from your hand or foot quite quickly. Timber or EPS or cork conduct heat away less rapidly and feel 'warm' because of this. Hence people like carpet and wood floors and cork mats in bathrooms etc. Changing the surface will be cheaper than installing UFH, although it doesn't do quite the same job.]]>
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