Just a thought but have you looked at how Passive House builders insulate their slabs with EPS Foam.<div><br></div><div>George<br clear="all"><span style="font-size:large"><font color="#009900"><div>Advanced, Super Insulated, Building Systems</div>
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<a href="http://twitter.com/styrohome" target="_blank"><font color="#000000">http://twitter.com/styrohome</font></a><div><a href="http://twitter.com/styrohome" target="_blank"></a><br><div><div><div><img src="https://socialcast.s3.amazonaws.com/logos/2052/GW275H100_logo.jpg"><br>
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<br><br><div name="sig_d41d8cd98f" style="margin-top: 0pt; margin-right: 0pt; margin-bottom: 0pt; margin-left: 0pt; "></div><div class="gmail_quote">On Tue, Jun 14, 2011 at 11:54 AM, natural building <span dir="ltr"><<a href="mailto:naturalbuilding@shaw.ca">naturalbuilding@shaw.ca</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div style="word-wrap:break-word">I haven't really been following this thread but for sub-slab insulation have you looked at Perlite?<div>
ASTM tested. A 6" layer offers R16 and it can be laid down in the paper bags that it is shipped in.<div><br></div><div><div>
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<span style="border-collapse:separate;color:rgb(0, 0, 0);font-family:Helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><div style="word-wrap:break-word">
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<div><div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;color:rgb(255, 160, 18)"><div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;color:rgb(99, 10, 255)"><span style="font-size:18px">Steve Satow</span></div>
<div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;color:rgb(99, 10, 255)"><br></div><div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;color:rgb(99, 10, 255)"><a href="http://www.naturalbuildingsite.net" target="_blank">www.naturalbuildingsite.net</a></div>
<div style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;color:rgb(99, 10, 255)"><a href="mailto:naturalbuilding@shaw.ca" target="_blank">naturalbuilding@shaw.ca</a></div></div></div></div></span></div>
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