<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:verdana, helvetica, sans-serif;font-size:10pt"><DIV></DIV>
<DIV>Hi Sambhav</DIV>
<DIV> </DIV>
<DIV><FONT face=Tahoma>AppendixG ASHRAE 90.1- 2004: states to model base case ,if roof is present with insulation on above deck only.only need put in a simple U-value for the Specification method . You then create your actual construction in your Proposed case.<BR></FONT></DIV>
<DIV><FONT face=Tahoma>This is to avoid "Attic effect" .Insulation on inside of roof creates attic effect.</FONT><BR><BR> </DIV>Regards,
<DIV></DIV><BR><BR>
<DIV>Sanjay Cholekar</DIV><BR><BR>
<DIV>+919326229841<BR>
<DIV><BR></DIV>
<DIV style="FONT-SIZE: 10pt; FONT-FAMILY: verdana, helvetica, sans-serif"><BR>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif"><FONT face=Tahoma size=2>
<HR SIZE=1>
<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> surekha tetali <surekhatetali@gmail.com><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> bldg-sim@lists.onebuilding.org<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Thursday, 28 May, 2009 7:44:36 PM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [Bldg-sim] Roof construction-AppendixG ASHRAE 90.1<BR></FONT><BR>Hi,<BR><BR>As per Table G3.1 of ASHRAE 90.1- 2004:"Opaque assemblies used for new buildings or additions shall conform with the following common,<B> lightweight assembly types</B> and shall match the appropriate assembly maximum U-factors in Tables 5.5-1 through 5.5-8"<BR>As the code mentioned all the constructions to be lightweight assemblies, my guess is, that only insulation is to be modeled. I hope somebody can throw some more light on this.<BR><BR>Regards,<BR><BR>Surekha Tetali<BR><BR>
<DIV class=gmail_quote><BR>
<BLOCKQUOTE class=gmail_quote style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">Date: Wed, 27 May 2009 17:38:10 +0530<BR>From: sambhav tiwari <<A href="mailto:tiwari.sambhav@gmail.com" target=_blank rel=nofollow ymailto="mailto:tiwari.sambhav@gmail.com">tiwari.sambhav@gmail.com</A>><BR>Subject: [Bldg-sim] Roof construction-AppendixG ASHRAE 90.1<BR>To: <A href="mailto:bldg-sim@lists.onebuilding.org" target=_blank rel=nofollow ymailto="mailto:bldg-sim@lists.onebuilding.org">bldg-sim@lists.onebuilding.org</A><BR>Message-ID:<BR> <<A href="mailto:586827530905270508n4f931c8brbfbac8d45e9617cb@mail.gmail.com" target=_blank rel=nofollow ymailto="mailto:586827530905270508n4f931c8brbfbac8d45e9617cb@mail.gmail.com">586827530905270508n4f931c8brbfbac8d45e9617cb@mail.gmail.com</A>><BR>Content-Type: text/plain; charset=ISO-8859-1<BR><BR>Hello All,<BR><BR>I am working on a energy simulation
model following Appendix G of<BR>ASHRAE 90.1-2004.<BR>In this appendix, table G3.1, under the building envelope category<BR>specifies that for roofs- insulation is entirely above deck but does<BR>not specific the kind of construction. Can I use any kind of material<BR>(like RCC, cast concrete or a metal frame) with insulation above deck<BR>to meet the required U value. Please clarify.<BR><BR>Thanks & Regards,<BR><BR>Sambhav Tiwari.<BR><BR><BR>------------------------------<BR><BR>Message: 4<BR>Date: Wed, 27 May 2009 06:07:24 -0700 (PDT)<BR>From: John Aulbach <<A href="mailto:jra_sac@yahoo.com" target=_blank rel=nofollow ymailto="mailto:jra_sac@yahoo.com">jra_sac@yahoo.com</A>><BR>Subject: Re: [Bldg-sim] Roof construction-AppendixG ASHRAE 90.1<BR>To: <A href="mailto:bldg-sim@lists.onebuilding.org" target=_blank rel=nofollow ymailto="mailto:bldg-sim@lists.onebuilding.org">bldg-sim@lists.onebuilding.org</A>, sambhav tiwari<BR>
<<A href="mailto:tiwari.sambhav@gmail.com" target=_blank rel=nofollow ymailto="mailto:tiwari.sambhav@gmail.com">tiwari.sambhav@gmail.com</A>><BR>Message-ID: <<A href="mailto:87913.56583.qm@web52805.mail.re2.yahoo.com" target=_blank rel=nofollow ymailto="mailto:87913.56583.qm@web52805.mail.re2.yahoo.com">87913.56583.qm@web52805.mail.re2.yahoo.com</A>><BR>Content-Type: text/plain; charset="iso-8859-1"<BR><BR>Sambhav:<BR><BR>My understanding is that you only need put in a simple U-value for the Specification method (see attached Word Document). You then create your actual construction in your Proposed case.<BR><BR>John Aulbach<BR><BR>--- On Wed, 5/27/09, sambhav tiwari <<A href="mailto:tiwari.sambhav@gmail.com" target=_blank rel=nofollow ymailto="mailto:tiwari.sambhav@gmail.com">tiwari.sambhav@gmail.com</A>> wrote:<BR><BR>> From: sambhav tiwari <<A href="mailto:tiwari.sambhav@gmail.com" target=_blank rel=nofollow
ymailto="mailto:tiwari.sambhav@gmail.com">tiwari.sambhav@gmail.com</A>><BR>> Subject: [Bldg-sim] Roof construction-AppendixG ASHRAE 90.1<BR>> To: <A href="mailto:bldg-sim@lists.onebuilding.org" target=_blank rel=nofollow ymailto="mailto:bldg-sim@lists.onebuilding.org">bldg-sim@lists.onebuilding.org</A><BR>> Date: Wednesday, May 27, 2009, 5:08 AM<BR>> Hello All,<BR>><BR>> I am working on a energy simulation model following<BR>> Appendix G of<BR>> ASHRAE 90.1-2004.<BR>> In this appendix, table G3.1, under the building envelope<BR>> category<BR>> specifies that for roofs- insulation is entirely above deck<BR>> but does<BR>> not specific the kind of construction. Can I use any kind<BR>> of material<BR>> (like RCC, cast concrete or a metal frame) with insulation<BR>> above deck<BR>> to meet the required U value. Please clarify.<BR>><BR>> Thanks & Regards,<BR>><BR>> Sambhav Tiwari.<BR>>
_______________________________________________<BR>> Bldg-sim mailing list<BR>> <A href="http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org" target=_blank rel=nofollow>http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org</A><BR>> To unsubscribe from this mailing list send? a blank<BR>> message to <A href="mailto:BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG" target=_blank rel=nofollow ymailto="mailto:BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG">BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG</A><BR>><BR><BR><BR><BR>-------------- next part --------------<BR>A non-text attachment was scrubbed...<BR>Name: Simple Roof.doc<BR>Type: application/msword<BR>Size: 100864 bytes<BR>Desc: not available<BR>URL: <<A href="http://lists.onebuilding.org/pipermail/bldg-sim-onebuilding.org/attachments/20090527/39446b89/attachment-0001.doc" target=_blank
rel=nofollow>http://lists.onebuilding.org/pipermail/bldg-sim-onebuilding.org/attachments/20090527/39446b89/attachment-0001.doc</A>><BR><BR>------------------------------<BR><BR>_______________________________________________<BR>Bldg-sim mailing list<BR><A href="mailto:Bldg-sim@lists.onebuilding.org" target=_blank rel=nofollow ymailto="mailto:Bldg-sim@lists.onebuilding.org">Bldg-sim@lists.onebuilding.org</A><BR><A href="http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org" target=_blank rel=nofollow>http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org</A><BR><BR><BR>End of Bldg-sim Digest, Vol 18, Issue 24<BR>****************************************<BR></BLOCKQUOTE></DIV><BR><BR clear=all><BR><BR><BR></DIV></DIV></DIV></div><br>
<!--1--><hr size=1></hr> Love Cricket? Check out live scores, photos, video highlights and more. <a href="http://in.rd.yahoo.com/tagline_cricket_2/*http://cricket.yahoo.com" target="_blank"> Click here</a>.</body></html>