<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Foamglass is rigid and does not flex. It will crack if subjected to flexing. It is commonly used for high temperature insulation around steam pipes in factories, etc. However, it is also used in industrial roofing.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Feb 21, 2024 at 12:43 AM Beatrice Dohrn <<a href="mailto:beatricedohrn@yahoo.com">beatricedohrn@yahoo.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">Is it true that foamglass is vulnerable to cracking — that’s my worry there. It’s a masonry house (faswall) so things are not so perfectly flat and square always….. <br id="m_-7268820476589417503lineBreakAtBeginningOfSignature"><div dir="ltr">Sent from my iPad</div><div dir="ltr"><br><blockquote type="cite">On Feb 20, 2024, at 10:51 AM, Norbert Senf <<a href="mailto:norbert.senf@gmail.com" target="_blank">norbert.senf@gmail.com</a>> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Check out Owens Corning Foamglas:<br><br><a href="https://www.foamglas.com/en-gb/products/fgbt3boards" target="_blank">https://www.foamglas.com/en-gb/products/fgbt3boards</a></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br><div><image.png></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Feb 20, 2024 at 12:35 PM Beatrice Dohrn via Greenbuilding <<a href="mailto:greenbuilding@lists.bioenergylists.org" target="_blank">greenbuilding@lists.bioenergylists.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br><br><br>---------- Forwarded message ----------<br>From: Beatrice Dohrn <<a href="mailto:beatricedohrn@yahoo.com" target="_blank">beatricedohrn@yahoo.com</a>><br>To: Green Building <<a href="mailto:greenbuilding@lists.bioenergylists.org" target="_blank">greenbuilding@lists.bioenergylists.org</a>><br>Cc: <br>Bcc: <br>Date: Tue, 20 Feb 2024 17:29:24 +0000 (UTC)<br>Subject: ***SPAM*** Re: [Greenbuilding] ***SPAM*** Re: Remodeling concerns<br><div><div style="font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:24px"><div><div dir="ltr">I also am facing a very labor intensive repair this spring of a low slope roof insulated with Polyiso, an EPDM membrane over top and sleepers and a deck over that. Seems that insects have chewed enough tunnels to compromise the integrity of it all. <br></div><div dir="ltr"><br></div><div dir="ltr">Suggestions for replacement? Is there rockwool that can be structural at about 7"? I haven't started research. The un-install and re-install will be a nightmare and I won't completely know what it going on until I open it all up. I am in Western Oregon (Eugene) and I ain't opening it until the rains leave.... <br></div><div dir="ltr"><br></div><div><br></div><div>Beatrice Dohrn <div><br></div></div></div>
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On Sunday, February 18, 2024 at 10:39:57 AM PST, Mike O'Brien <<a href="mailto:obrien@hevanet.com" target="_blank">obrien@hevanet.com</a>> wrote:
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<div><div id="m_-7268820476589417503m_6213680752416279596ydped194f4eyiv9822760445"><div>Hi, Ben—<div><br clear="none"></div><div>Our house plans specified closed-cell foam in our roof, but without asking, our general contractor installed open cell foam. Now, 16 years later, there is rot in the roof sheathing and a very expensive repair job ahead. So I would caution against ever specifying either foam, as a mistake can be catastrophic years later.</div><div><br clear="none" id="m_-7268820476589417503m_6213680752416279596ydped194f4eyiv9822760445lineBreakAtBeginningOfSignature"><div dir="ltr">Best, Mike O’Brien<div>Sent from my iPhone</div></div><div dir="ltr"><div id="m_-7268820476589417503m_6213680752416279596ydped194f4eyiv9822760445yqtfd87320"><br clear="none"><blockquote type="cite">On Feb 18, 2024, at 8:13 AM, Benjamin Pratt <<a href="mailto:benjamin.g.pratt@gmail.com" target="_blank">benjamin.g.pratt@gmail.com</a>> wrote:<br clear="none"><br clear="none"></blockquote></div></div><div id="m_-7268820476589417503m_6213680752416279596ydped194f4eyiv9822760445yqtfd11085"><blockquote type="cite"><div dir="ltr"><div dir="ltr"><div>Hi. I've been on this forum for many years, but I am not an architect or qualified expert. I came across this article today and had some concerns about this project. <br clear="none"></div>1. By air source heat pump, I assume they mean mini-split(s). I did some calculations rencenty and found that electricity is about 9 times more expensive per therm than gas. Combining with the very cold temperatures we typically get, I imagine The bill will be higher than if they had a gas boiler. Also, they now have to deal with uneven temperatures throughout the house and leaving doors open to all the rooms they want heated. What do you think?<br clear="none"><div>2. I have read about dangers of using spray foam in an old house--especially the potential for rot. What do you think?</div><div> <br clear="none">This article reads as an advertisement for doing this sort of remodel without mentioning any of the potential downsides. I'd love to hear your thoughts.<br clear="none"></div><div><a shape="rect" href="https://www.mprnews.org/story/2024/02/18/renovating-old-1909-st-paul-house-into-all-electric-green-home" rel="nofollow" target="_blank">https://www.mprnews.org/story/2024/02/18/renovating-old-1909-st-paul-house-into-all-electric-green-home</a><br clear="none"><br clear="none"></div><div>Ben Pratt<br clear="none"></div><div><div><br clear="none"><span>-- </span><br clear="none"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr" style="font-size:15.015px"><div dir="ltr" style="font-size:15.015px"><font size="4">-------------------</font><span style="font-size:large">--------------------</span><span style="font-size:large">--------------------</span><span style="font-size:large">--------------------</span><span style="font-size:large">---------------</span></div></div><div dir="ltr">CONFIDENTIALITY NOTICE:<br clear="none">The contents of this email message and any attachments are intended solely for the addressee(s) and may contain confidential and/or privileged information and may be legally protected from disclosure. If you are not the intended recipient of this message or their agent, or if this message has been addressed to you in error, please immediately alert the sender by reply email and then delete this message and any attachments. If you are not the intended recipient, you are hereby notified that any use, dissemination, copying, or storage of this message or its attachments is strictly prohibited.</div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
<span>_______________________________________________</span><br clear="none"><span>Greenbuilding mailing list</span><br clear="none"><span>to Send a Message to the list, use the email address</span><br clear="none"><span><a href="mailto:Greenbuilding@bioenergylists.org" target="_blank">Greenbuilding@bioenergylists.org</a></span><br clear="none"><span></span><br clear="none"><span>to UNSUBSCRIBE or Change your List Settings use the web page</span><br clear="none"><span><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></span><br clear="none"></div></blockquote></div></div></div></div><div id="m_-7268820476589417503m_6213680752416279596ydped194f4eyqtfd57436">_______________________________________________<br clear="none">Greenbuilding mailing list<br clear="none">to Send a Message to the list, use the email address<br clear="none"><a shape="rect" href="mailto:Greenbuilding@bioenergylists.org" rel="nofollow" target="_blank">Greenbuilding@bioenergylists.org</a><br clear="none"><br clear="none">to UNSUBSCRIBE or Change your List Settings use the web page<br clear="none"><a shape="rect" href="http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org" rel="nofollow" target="_blank">http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org</a><br clear="none"></div></div>
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</div></div><br><br><br>---------- Forwarded message ----------<br>From: Beatrice Dohrn via Greenbuilding <<a href="mailto:greenbuilding@lists.bioenergylists.org" target="_blank">greenbuilding@lists.bioenergylists.org</a>><br>To: Green Building <<a href="mailto:greenbuilding@lists.bioenergylists.org" target="_blank">greenbuilding@lists.bioenergylists.org</a>><br>Cc: Beatrice Dohrn <<a href="mailto:beatricedohrn@yahoo.com" target="_blank">beatricedohrn@yahoo.com</a>><br>Bcc: <br>Date: Tue, 20 Feb 2024 17:29:24 +0000 (UTC)<br>Subject: [Greenbuilding] ***SPAM*** Re: ***SPAM*** Re: Remodeling concerns<br>_______________________________________________<br>
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</blockquote></div><br clear="all"><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature">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></div>
</div></blockquote></div></blockquote></div><br clear="all"><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature">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></div>