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			<title>Green Building Forum - Relaying floorboards</title>
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		<title>Relaying floorboards</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=2338&amp;Focus=29864#Comment_29864</link>
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		<pubDate>Mon, 11 Aug 2008 16:46:25 +0100</pubDate>
		<author>Paul_B</author>
		<description>
			<![CDATA[Having lifted the old floor and added some more electrical points and improved sound insulation I need a new sub-floor. What is a good material to use for a "floorboard"? Previously before the work was started it was chipboard but I believe this off-gases? What about stirling board? Should I go for large sheets of T&G? <br /><br />TIA<br /><br />Paul]]>
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		<title>Relaying floorboards</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=2338&amp;Focus=29868#Comment_29868</link>
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		<pubDate>Mon, 11 Aug 2008 17:49:41 +0100</pubDate>
		<author>joe.e</author>
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			<![CDATA[T+G chipboard is obviously the normal material to use, and very convenient and practical; I hadn't heard about the gassing problem. I think you can buy birch ply with a T+G edging for flooring, and that would be nice, if expensive - good enough for a topfloor, really, with the odd rug on top. I don't think I'd want OSB for flooring - it sags and gives in the long term if subjected to continuous loads, in my experience, although thicker sheets might be better in that respect. What's going to go on top?]]>
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		<title>Relaying floorboards</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=2338&amp;Focus=29889#Comment_29889</link>
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		<pubDate>Mon, 11 Aug 2008 21:29:51 +0100</pubDate>
		<author>Paul_B</author>
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			<![CDATA[Finished surface will probably be bamboo, hard-wood or marmoleum]]>
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		<title>Relaying floorboards</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=2338&amp;Focus=29906#Comment_29906</link>
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		<pubDate>Tue, 12 Aug 2008 07:50:22 +0100</pubDate>
		<author>joe.e</author>
		<description>
			<![CDATA[If you were going to go with a hardwood floor - 9x70 T+G oak for example - you could use reclaimed floorboards as a subfloor, then lay the oak running across the boards. That would be an environmentally friendly way of doing it, and would give a good result if the reclaimed boards were carefully thicknessed by the supplier. I'd go with chipboard but I'm a bit of a cheapskate. The chipboard goes down very fast too.<br />If you're laying a solid floor over the subfloor you could use plywood if you cut the sheets so that the joins running one way fell in the middle of a joist. The topfloor boards could run across unsupported seams.<br />Bamboo is not as stable as is sometimes claimed, by the way - it needs quite long acclimatisation. If you can find a click-together bamboo board I'd recommend it, so that shrinkage doesn't open up gaps.]]>
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		<title>Relaying floorboards</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=2338&amp;Focus=29916#Comment_29916</link>
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		<pubDate>Tue, 12 Aug 2008 11:03:41 +0100</pubDate>
		<author>TheDoctor</author>
		<description>
			<![CDATA[more environmentally friendly would be to use a hardwood reclaimed floor without the sub-floor.....<br />We are laying a reclaimed Burmese Teak. Has spent a few decades already as the floor of a University Science Lab complex.<br /><br /><br />as for bamboo - i just installed 40mm thick bamboo worktops in the kitchen. Fantastic stuff with a few coats of Danish Oil.<br /><br />Hard as b*ggery, though. my circular saw was suffering, and needs a holiday.]]>
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		<title>Relaying floorboards</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=2338&amp;Focus=29969#Comment_29969</link>
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		<pubDate>Tue, 12 Aug 2008 16:52:59 +0100</pubDate>
		<author>Paul_B</author>
		<description>
			<![CDATA[With reference to chipboard and off-gassing I looked it up to check I wasn't imagining things. The Greenspec website states the following weaknesses of chipboard:<br /><br />- Toxic resin risks formaldehyde off-gassing <br />- Large quantities of VOCs released as part of the manufacturing process <br /><br /><a href="http://www.greenspec.co.uk/html/materials/boards.html" target="_self" rel="nofollow">http://www.greenspec.co.uk/html/materials/boards.html</a><br /><br />The suggestion is to use Medium Board or Chipboard that is FSC and doesn't use formaldehyde. However, I can't find suppliers anywhere online.]]>
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		<title>Relaying floorboards</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=2338&amp;Focus=30106#Comment_30106</link>
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		<pubDate>Wed, 13 Aug 2008 16:08:17 +0100</pubDate>
		<author>Paul in Montreal</author>
		<description>
			<![CDATA[Over here in Canada chipboard is unknown for flooring. Exterior grade plywood, T&G plywood or OSB is normally used. When we build the new house we used 3/4" T&G plywood and installed reclaimed wood flooring on top (the wood was reclaimed from the old house we demolished). <br /><br />All that said, plywood also off-gases as does wood in general. Formaldehyde is just as natural a chemical as the acetic acid in vinegar. Both of which are bad in high concentrations.<br /><br />Paul in Montreal.]]>
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		<title>Relaying floorboards</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=2338&amp;Focus=30109#Comment_30109</link>
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		<pubDate>Wed, 13 Aug 2008 16:34:51 +0100</pubDate>
		<author>Paul_B</author>
		<description>
			<![CDATA[As I see it then the options are chipboard or plywood if FSC and low formaldehyde off-gassing products exist. Or real wood (either new FSC or reclaimed) which is likely to be pine or oak? Is this my choice?<br /><br />The plywood or chipboard would be faster to lay and probably thinner at 18mm whereas planks are more likely to be 22mm. Is the use of T&G a consideration?]]>
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		<title>Relaying floorboards</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=2338&amp;Focus=30110#Comment_30110</link>
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		<pubDate>Wed, 13 Aug 2008 17:00:14 +0100</pubDate>
		<author>Timber</author>
		<description>
			<![CDATA[OSB grade 4? that doesn't use horrid glues etc!<br /><br />a 15 - 18 mm T&G osb deck should be fairly cheep and robust.<br /><br />How have you impoved sound insulation? If you want more improvement you can purchase T&G chipboard with a special foam rubber stuck to the bottom that sits directly onto the floor joists. This will greatly improved impact sound transmission (and to a lesser extent the airborne noise) which can be a big problem with hard floor finishes (espically if you had carpet before).]]>
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		<title>Relaying floorboards</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=2338&amp;Focus=30603#Comment_30603</link>
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		<pubDate>Tue, 19 Aug 2008 12:58:29 +0100</pubDate>
		<author>Paul_B</author>
		<description>
			<![CDATA[I have found a product call SmartPly. It is a OSB board that is aimed at jobs that would normally use ply. One of these being laying of T&G paneled floors. The marketing blurbs claims no added formaldehyde and a &gt;90% FSC composition. Has anyone come across or used this product?<br /><br />Paul]]>
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