<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 12 (filtered medium)"><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
@font-face
{font-family:"Gill Sans MT";
panose-1:2 11 5 2 2 1 4 2 2 3;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";
color:black;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:12.0pt;
font-family:"Times New Roman","serif";
color:black;}
pre
{mso-style-priority:99;
mso-style-link:"HTML Preformatted Char";
margin:0cm;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";
color:black;}
span.hoenzb
{mso-style-name:hoenzb;}
span.m-8133840847980594306im
{mso-style-name:m_-8133840847980594306im;}
span.HTMLPreformattedChar
{mso-style-name:"HTML Preformatted Char";
mso-style-priority:99;
mso-style-link:"HTML Preformatted";
font-family:Consolas;
color:black;}
span.EmailStyle22
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:black;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-CA link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:black'>Depends on perimeter depth. Are you doing a frost protected foundation? Or are the footings below freezing and fully wrapped? consideration on the perimeter and bridging. I’ve typically gone R20 on slab but R30 on perimeter.<o:p></o:p></span></p><p class=MsoNormal><a name="_MailEndCompose"><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></a></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> Greenbuilding [mailto:greenbuilding-bounces@lists.bioenergylists.org] <b>On Behalf Of </b>Lynelle Hamilton<br><b>Sent:</b> Tuesday, October 3, 2017 7:50 PM<br><b>To:</b> greenbuilding@lists.bioenergylists.org<br><b>Subject:</b> Re: [Greenbuilding] Unifoam vs Plastispan<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p><span style='font-size:13.5pt;font-family:"Gill Sans MT","sans-serif"'>Norbert, is the 50F true when the slab is shallow (e.g. essentially on packed earth that is 16" below grade?</span><o:p></o:p></p><p><span style='font-size:13.5pt;font-family:"Gill Sans MT","sans-serif"'>Lynelle</span><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On 2017-10-03 7:19 PM, Norbert Senf wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal>Way high. If you do a payback analysis for the last R-10 it is close to infinite. Ground temperature around here is 50F, so your maximum differential is maybe 20 degrees ............... N<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On Tue, Oct 3, 2017 at 7:11 PM, Gennaro Brooks-Church - Eco Brooklyn <<a href="mailto:info@ecobrooklyn.com" target="_blank">info@ecobrooklyn.com</a>> wrote:<o:p></o:p></p><div><p class=MsoNormal>R-35 under slab is high or low?<o:p></o:p></p></div><div><p class=MsoNormal><br clear=all><o:p></o:p></p><div><div><div><div><div><div><div><div><p class=MsoNormal>Thanks!<o:p></o:p></p></div><div><p class=MsoNormal><span style='color:#888888'>Gennaro<o:p></o:p></span></p></div></div></div></div></div></div></div></div><div><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On Tue, Oct 3, 2017 at 6:59 PM, John Straube <<a href="mailto:jfstraube@gmail.com" target="_blank">jfstraube@gmail.com</a>> wrote:<o:p></o:p></p><p class=MsoNormal>I am not sure what is special about your slab, but standard XPS (25 psi max) has been used for decades. Hence, EPS with more than 25 psi seems odd anywhere except where a concentrated load occurs. Remember, 25 psi is 3500 psf, which is more than most soils can take. But to answer part of the question I have use PlastiFab EPS of wide range of strengths successfully for a long time, and have no experience with Uniform.<br>Of course insulating with R-35 under slab seems very odd… the result of bizarre interior conditions or bizarre calculation methods?<br><br><span class=m-8133840847980594306im>> On Oct 3, 2017, at 6:24 PM, Lynelle Hamilton <<a href="mailto:lynelle@lahamilton.com" target="_blank">lynelle@lahamilton.com</a>> wrote:</span><br><span class=m-8133840847980594306im>></span><br><span class=m-8133840847980594306im>> I am insulating under a floating pad. The engineer has specified 25psi under the slab and 30 psi on outer edges. I've been looking at two products: Unifoam 25/30 and Plastifab 25/30. Aiming for R35 under the slab. Price differential is significant (Unifoam is nearly $3000 more) for the house.</span><br><span class=m-8133840847980594306im>></span><br><span class=m-8133840847980594306im>> Has anyone had experience with either product? From the specs, Unifoam appears to absorb less water and has less deflection, but both are within the ASTM spec for the issue.</span><br><span class=m-8133840847980594306im>></span><br><span class=m-8133840847980594306im>> Many thanks for any insights!</span><br><span class=m-8133840847980594306im>></span><br><span class=m-8133840847980594306im>> Lynelle Hamilton</span><br><span class=m-8133840847980594306im>></span><o:p></o:p></p><div><div><p class=MsoNormal>> Virus-free. <a href="http://www.avast.com" target="_blank">www.avast.com</a><br>> _______________________________________________<br>> Greenbuilding mailing list<br>> to Send a Message to the list, use the email address<br>> <a href="mailto:Greenbuilding@bioenergylists.org" target="_blank">Greenbuilding@bioenergylists.org</a><br>><br>> to UNSUBSCRIBE or Change your List Settings use the web page<br>> <a href="http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org" target="_blank">http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org</a><br><br><br>_______________________________________________<br>Greenbuilding mailing list<br>to Send a Message to the list, use the email address<br><a href="mailto:Greenbuilding@bioenergylists.org" target="_blank">Greenbuilding@bioenergylists.org</a><br><br>to UNSUBSCRIBE or Change your List Settings use the web page<br><a href="http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org" target="_blank">http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org</a><o:p></o:p></p></div></div></div><p class=MsoNormal><o:p> </o:p></p></div></div></div><p class=MsoNormal><br>_______________________________________________<br>Greenbuilding mailing list<br>to Send a Message to the list, use the email address<br><a href="mailto:Greenbuilding@bioenergylists.org">Greenbuilding@bioenergylists.org</a><br><br>to UNSUBSCRIBE or Change your List Settings use the web page<br><a href="http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org" target="_blank">http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org</a><o:p></o:p></p></div><p class=MsoNormal><br><br clear=all><br>-- <o:p></o:p></p><div><p class=MsoNormal>Norbert Senf<br>Masonry Stove Builders<br>25 Brouse Road, RR 5<br>Shawville Québec J0X 2Y0<br>819.647.5092<br><a href="http://www.heatkit.com" target="_blank">www.heatkit.com</a><o:p></o:p></p></div></div><p class=MsoNormal><br><br><br><o:p></o:p></p><pre>_______________________________________________<o:p></o:p></pre><pre>Greenbuilding mailing list<o:p></o:p></pre><pre>to Send a Message to the list, use the email address<o:p></o:p></pre><pre><a href="mailto:Greenbuilding@bioenergylists.org">Greenbuilding@bioenergylists.org</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre>to UNSUBSCRIBE or Change your List Settings use the web page<o:p></o:p></pre><pre><a href="http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org">http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org</a><o:p></o:p></pre></blockquote><p class=MsoNormal><o:p> </o:p></p><div id=DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2><p class=MsoNormal><o:p> </o:p></p><table class=MsoNormalTable border=1 cellpadding=0 style='border:none;border-top:solid #D3D4DE 1.0pt'><tr><td width=55 style='width:41.25pt;border:none;padding:9.75pt .75pt .75pt .75pt'><p class=MsoNormal><a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient" target="_blank"><span style='text-decoration:none'><img border=0 width=46 height=29 id="_x0000_i1025" src="https://ipmcdn.avast.com/images/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif"></span></a><o:p></o:p></p></td><td width=470 style='width:352.5pt;border:none;padding:9.0pt .75pt .75pt .75pt'><p class=MsoNormal style='line-height:13.5pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#41424E'>Virus-free. <a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient" target="_blank"><span style='color:#4453EA'>www.avast.com</span></a> <o:p></o:p></span></p></td></tr></table><p class=MsoNormal><span style='color:windowtext'><o:p> </o:p></span></p></div></div></body></html>