<html><head><base href="x-msg://800/"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">There seems to be some confusion.<div>Non-combustible in the code does not mean "it does not burn". It means it passes a silly ASTM test, and does not lose more than x % of weight (I think x=10%).</div><div>All wood I have seen fails this, even fire retardent wood, because it off gases enough water and oils that it fails.</div><div>Gypsum looses too much mass, and would fail, except that it is grandfathered.</div><div>Fiberglass does not work. Concrete and steel do.</div><div><br></div><div>So Gennaro, do you mean non combustible or do you mean fire rated or something else?</div><div><br></div><div><br><div><div>On 2011-04-04, at 9:47 AM, Ron Cascio wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div bgcolor="#ffffff"><div><font size="4" face="Goudy Old Style">Check this material out;</font></div><div><font size="4" face="Goudy Old Style"></font> </div><div><font size="4" face="Goudy Old Style"><a href="http://www.timbersilwood.com/">http://www.timbersilwood.com/</a></font></div><div><font size="4" face="Goudy Old Style"></font> </div><div><font size="4" face="Goudy Old Style">Can't wait to try some of it out sometime soon.</font></div><div><font size="4" face="Goudy Old Style"></font> </div><div><font size="4" face="Goudy Old Style"></font> </div><div><font size="4" face="Goudy Old Style">Ron</font></div><div><font size="4" face="Goudy Old Style"></font> </div><blockquote style="border-left-color: rgb(0, 0, 0); border-left-width: 2px; border-left-style: solid; padding-left: 5px; padding-right: 0px; margin-left: 5px; margin-right: 0px; "><div style="font: normal normal normal 10pt/normal arial; ">----- Original Message -----</div><div style="font: normal normal normal 10pt/normal arial; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: rgb(228, 228, 228); background-position: initial initial; background-repeat: initial initial; "><b>From:</b><span class="Apple-converted-space"> </span><a title="bergman@cyberg.com" href="mailto:bergman@cyberg.com">David Bergman</a></div><div style="font: normal normal normal 10pt/normal arial; "><b>To:</b><span class="Apple-converted-space"> </span><a title="greenbuilding@lists.bioenergylists.org" href="mailto:greenbuilding@lists.bioenergylists.org">Green Building</a><span class="Apple-converted-space"> </span>;<span class="Apple-converted-space"> </span><a title="info@ecobrooklyn.com" href="mailto:info@ecobrooklyn.com">Gennaro Brooks-Church</a></div><div style="font: normal normal normal 10pt/normal arial; "><b>Sent:</b><span class="Apple-converted-space"> </span>Monday, April 04, 2011 12:13 AM</div><div style="font: normal normal normal 10pt/normal arial; "><b>Subject:</b><span class="Apple-converted-space"> </span>Re: [Greenbuilding] fireproof light deck</div><div><br></div>Gennaro,<br><br>Add "eco material" to that description and it becomes an old quest of mine. Are you talking about something to sit directly on the "real" roof? About the best I could come up with when I last tackled the question was lightweight concrete roof pavers -- not all that eco though maybe there are some made with flyash.<br><br>In terms of wood, NYC used to accept Ipe, but I heard a rumor they stopped when the fire rating claims didn't prove out. And, of course, there was the rainforest sourcing issue.<br><br>I've looked for fire-rated recycled plastic lumber from time to time, but have not yet found any. (Tim V-K: any updates you've heard of?)<br><br>There is a group called Brooklyn Bridge Forest (<a href="http://www.brooklynbridgeforest.com/" eudora="autourl"><span class="Apple-converted-space"> </span>http://www.brooklynbridgeforest.com/</a>) that is trying to set up a sustainable source for greenheart for maintaining the Brooklyn Bridge. I'm not sure what kind of fire rating greenheart does or doesn't have. (According to one site I just googled, it carries a "high/medium" rating.)<br><br>David<br>David Bergman RA LEED AP<br><font color="#808080" size="2"><b>DAVID BERGMAN</b><span class="Apple-converted-space"> </span>ARCHITECT /<span class="Apple-converted-space"> </span><b>FIRE & WATER</b><span class="Apple-converted-space"> </span>LIGHTING + FURNITURE<br></font><font color="#808080">architecture . interiors .<span class="Apple-converted-space"> </span></font><font color="#008080">ecodesign</font><font color="#808080"><span class="Apple-converted-space"> </span>. lighting . furniture<br></font><font color="#808080" size="2"><a href="mailto:bergman@cyberg.com">bergman@cyberg.com</a> <span class="Apple-converted-space"> </span><a href="http://www.cyberg.com" eudora="autourl"><u>www.cyberg.com</u></a><u></u><span class="Apple-converted-space"> </span></font><font color="#808080"><br></font><font color="#808080" size="2">241 Eldridge Street #3R, New York, NY 10002<br></font><font color="#808080">t<span class="Apple-converted-space"> </span></font><font color="#808080" size="2">212 475 3106 f 212 677 7291</font><font color="#808080"><span class="Apple-converted-space"> </span><br></font>At 08:01 PM 4/3/2011, Gennaro Brooks-Church wrote:<br><blockquote class="cite" cite="" type="cite">Hello,<br>Can anyone suggest a lightweight non-combustible deck material for a roof deck?<br>In New York a brownstone has an average flat roof of 700sq.ft. The law only allows 20% of it to be covered with combustible decking, which isn't much of a deck. Yet the non-combustible decking is too heavy for the old roofs.<br>Suggestion?<br><br>Gennaro Brooks-Church<br><br>Cell: 1 347 244 3016 USA<br><a href="http://www.EcoBrooklyn.com">www.EcoBrooklyn.com</a><br>22 2nd St; Brooklyn, NY 11231<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">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" eudora="autourl">http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org</a></blockquote><div><br class="webkit-block-placeholder"></div><hr><div><br class="webkit-block-placeholder"></div>_______________________________________________<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">http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org</a><br><div><br class="webkit-block-placeholder"></div><hr><div><br class="webkit-block-placeholder"></div><br>No virus found in this incoming message.<br>Checked by AVG -<span class="Apple-converted-space"> </span><a href="http://www.avg.com">www.avg.com</a><span class="Apple-converted-space"> </span><br>Version: 9.0.894 / Virus Database: 271.1.1/3548 - Release Date: 04/03/11 13:40:00<br></blockquote>_______________________________________________<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">http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org</a></div></span></blockquote></div><br><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div><div style="font-size: 14px; ">Dr John Straube, P.Eng.</div><div style="font-size: 14px; ">Associate Professor</div><div style="font-size: 14px; ">University of Waterloo</div><div style="font-size: 14px; ">Dept of Civil Eng. & School of Architecture</div><div style="font-size: 14px; "><a href="http://www.buildingscience.com">www.buildingscience.com</a></div></div></span>
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