<div>Hi James, </div><div> </div><div>In oder to answer your last question, two things should be clarified as flollows: </div><div> </div><div>1. Appendix G is designated for New and Major renovation Projects; </div><div>2. As per SUPPLEMENTAL GUIDANCE TO THE MINIMUM PROGRAM REQUIREMENTS (R2), " <font face="Cambria,BoldItalic"><font face="Cambria,BoldItalic"><strong><em>Major Renovation: </em></strong><span style="font-family: "Arial","sans-serif";">Includes extensive <span style="mso-bidi-font-style: italic;">alteration </span>work in addition to work
on the <span style="mso-bidi-font-style: italic;">exterior shell </span>of the
building and/or <span style="mso-bidi-font-style: italic;">primary structural
components </span>and/or the core and peripheral MEP and service systems and/or
site work. Typically, the extent and nature of the work is such that the <span style="mso-bidi-font-style: italic;">primary function space </span>cannot be used
for its intended purpose while the work is in progress and where a new
certificate of occupancy is required before the work area can be reoccupied." </span></font></font></div><div><font face="Cambria,BoldItalic"><font face="Cambria,BoldItalic"><span style="font-family: "Arial","sans-serif";"></span></font></font> </div>
<div><font face="Cambria,BoldItalic"><font face="Cambria,BoldItalic"><span style="font-family: "Arial","sans-serif";">Your project falls into an existing building undergoing renovation or major renovation will make big difference, I guess. </span></font></font></div>
<div><font size="3" face="Cambria,BoldItalic"><font size="3" face="Cambria,BoldItalic"><span style="font-family: "Arial","sans-serif"; font-size: 10pt;"></span></font></font> </div><div><font size="3" face="Cambria,BoldItalic"><font size="3" face="Cambria,BoldItalic"><span style="font-family: "Arial","sans-serif"; font-size: 10pt;">Regards, </span></font></font><font face="comic sans ms,sans-serif"> </font></div>
<div><font face="comic sans ms,sans-serif">Cheney</font></div>
<div><font face="comic sans ms,sans-serif"></font> </div>
<div><font face="comic sans ms,sans-serif">LinkedIN @ </font><a href="http://ca.linkedin.com/pub/yu-cheney-chen/27/637/72b" target="_blank"><font face="comic sans ms,sans-serif">http://ca.linkedin.com/pub/yu-cheney-chen/27/637/72b</font></a><font face="comic sans ms,sans-serif"> </font></div>
<br>
<br><br><div class="gmail_quote">On Tue, Oct 11, 2011 at 1:40 PM, James Hansen <span dir="ltr"><<a href="mailto:JHANSEN@ghtltd.com">JHANSEN@ghtltd.com</a>></span> wrote:<br><blockquote style="margin: 0px 0px 0px 0.8ex; padding-left: 1ex; border-left-color: rgb(204, 204, 204); border-left-width: 1px; border-left-style: solid;" class="gmail_quote">
<div lang="EN-US" vlink="purple" link="blue"><div><p class="MsoNormal"><span style="color: rgb(31, 73, 125); font-size: 11pt;">One more follow up question: what if the entire building skin was removed and replaced with new? What the skin go to the minimum ASHRAE 90.1 values and whatever glass percentage is in the proposed building? <u></u><u></u></span></p>
<div class="im"><p class="MsoNormal"><span style="color: rgb(31, 73, 125); font-size: 11pt;"><u></u> <u></u></span></p><div><p class="MsoNormal"><b><span style="color: teal; font-size: 11pt;">GHT Limited<br></span></b><b><span style="color: rgb(31, 73, 125); font-size: 11pt;">James Hansen, P.E., LEED AP</span></b><span style="color: rgb(31, 73, 125); font-size: 10pt;"><br>
Senior Associate<br>1010 N. Glebe Road, Suite 200<br>Arlington, VA 22201-4749<br><a href="tel:703-243-1200" target="_blank" value="+17032431200">703-243-1200</a> (office)<u></u><u></u></span></p><p class="MsoNormal"><span style="color: rgb(31, 73, 125); font-size: 10pt;"><a href="tel:703-338-5754" target="_blank" value="+17033385754">703-338-5754</a> (cell)<br>
<a href="tel:703-276-1376" target="_blank" value="+17032761376">703-276-1376</a> (fax)<u></u><u></u></span></p><p class="MsoNormal"><span style="color: rgb(31, 73, 125); font-size: 10pt;"><a title="http://www.ghtltd.com/" href="http://www.ghtltd.com/" target="_blank">www.ghtltd.com</a></span><span style="color: rgb(31, 73, 125); font-size: 11pt;"><u></u><u></u></span></p>
</div><p class="MsoNormal"><span style="color: rgb(31, 73, 125); font-size: 11pt;"><u></u> <u></u></span></p></div><div><div style="border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223) currentColor currentColor; padding: 3pt 0in 0in;">
<p class="MsoNormal"><b><span style="font-size: 10pt;">From:</span></b><span style="font-size: 10pt;"> Nick Caton [mailto:<a href="mailto:ncaton@smithboucher.com" target="_blank">ncaton@smithboucher.com</a>] <br></span><div class="im">
<b>Sent:</b> Tuesday, October 11, 2011 2:54 PM<br></div><b>To:</b> Paul Riemer; James Hansen; Anne Juran; <a href="mailto:bldg-sim@lists.onebuilding.org" target="_blank">bldg-sim@lists.onebuilding.org</a><div><div></div><div class="h5">
<br><b>Subject:</b> RE: [Bldg-sim] LEED and existing envelopes<u></u><u></u></div></div><p></p></p></div></div><div><div></div><div class="h5"><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><span style="color: rgb(31, 73, 125);">I’ve never done a core & shell model, so take this opinion with a grain of salt (it’s only my opinion):</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span><u></u><u></u></p><p class="MsoNormal"><span style="color: rgb(31, 73, 125);">This reviewer’s interpretation seems to make a lot of sense to me. Have the baseline represent the actual existing building, and have the proposed match the actual design. To my understanding, the only reason we make them match 1:1 for new construction is there isn’t a better means (like when you have an existing building) to define a baseline that would treat evenhandedly all building types/climates/circumstances, so we have them match to at least ensure level playing field.</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span><u></u><u></u></p><p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Put another way, and in response to James’ query, I think if adding windows (nice or not) cause the energy bills to go up in an existing building, then that should be reflected in the energy model. Simultaneously, if you are interested to add daylighting “in moderation,” and locate/orient glazing & shading devices in a fashion that lowers the annual bills, then that should also be reflected in the energy model. </span><u></u><u></u></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span><u></u><u></u></p><p class="MsoNormal"><span style="color: rgb(31, 73, 125);">It’s important to remember not all exterior glazing is bad from an energy perspective, particularly when daylighting controls for the building interior lighting are added into the mix. WWR is one area where “engineers and architects” (or “energy and aesthetics,” if that better describes your design team) do not need to be on opposite ends of the table!</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span><u></u><u></u></p><p class="MsoNormal"><span style="color: rgb(31, 73, 125);">~Nick</span><u></u><u></u></p><p class="MsoNormal"><span style="color: rgb(31, 73, 125); font-size: 11pt;"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125); font-size: 11pt;"> </span><u></u><u></u></p><div><p class="MsoNormal"><span style="color: rgb(31, 73, 125); font-size: 11pt;"><img border="0" alt="cid:489575314@22072009-0ABB" src="cid:image001.jpg@01CC8834.75407FE0" width="119" height="37"></span><u></u><u></u></p>
<p class="MsoNormal"><b><span style="color: rgb(45, 77, 94); font-size: 11pt;"> </span></b><u></u><u></u></p><p class="MsoNormal"><b><span style="color: rgb(45, 77, 94);">NICK CATON, P.E.</span></b><u></u><u></u></p><p class="MsoNormal">
<span style="color: rgb(204, 153, 0); font-size: 7.5pt;">SENIOR ENGINEER</span><u></u><u></u></p><p class="MsoNormal"><span style="color: rgb(204, 153, 0); font-size: 7.5pt;"> </span><u></u><u></u></p><p class="MsoNormal">
<span style="color: rgb(45, 77, 94); font-size: 10pt;">Smith & Boucher Engineers</span><u></u><u></u></p><p class="MsoNormal"><span style="color: rgb(45, 77, 94); font-size: 10pt;">25501 west valley parkway, suite 200</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color: rgb(45, 77, 94); font-size: 10pt;">olathe, ks 66061</span><u></u><u></u></p><p class="MsoNormal"><span style="color: rgb(45, 77, 94); font-size: 10pt;">direct <a href="tel:913.344.0036" target="_blank" value="+19133440036">913.344.0036</a></span><u></u><u></u></p>
<p class="MsoNormal"><span style="color: rgb(45, 77, 94); font-size: 10pt;">fax <a href="tel:913.345.0617" target="_blank" value="+19133450617">913.345.0617</a></span><u></u><u></u></p><p class="MsoNormal"><span style="color: rgb(31, 73, 125); font-size: 10pt;"><a href="http://www.smithboucher.com" target="_blank">www.smithboucher.com</a></span><u><span style="color: blue; font-size: 10pt;"> </span></u><u></u><u></u></p>
</div><p class="MsoNormal"><span style="color: rgb(31, 73, 125); font-size: 11pt;"> </span><u></u><u></u></p><div><div style="border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223) currentColor currentColor; padding: 3pt 0in 0in;">
<p class="MsoNormal"><b><span style="font-size: 10pt;">From:</span></b><span style="font-size: 10pt;"> <a href="mailto:bldg-sim-bounces@lists.onebuilding.org" target="_blank">bldg-sim-bounces@lists.onebuilding.org</a> [mailto:<a href="mailto:bldg-sim-bounces@lists.onebuilding.org" target="_blank">bldg-sim-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>Paul Riemer<br>
<b>Sent:</b> Tuesday, October 11, 2011 1:46 PM<br><b>To:</b> 'James Hansen'; Anne Juran; <a href="mailto:bldg-sim@lists.onebuilding.org" target="_blank">bldg-sim@lists.onebuilding.org</a><br><b>Subject:</b> Re: [Bldg-sim] LEED and existing envelopes</span><u></u><u></u></p>
</div></div><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal"><span style="color: rgb(31, 73, 125); font-size: 11pt;">I also agree with the reviewer. The existing envelope condition stipulation is a double edged sword. Do you truly think it is a net penalty on your LEED application to add windows? Other LEED points reward daylight and views, and the thermal energy impacts of the windows are hopefully offset by electric lighting savings. </span><u></u><u></u></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125); font-size: 11pt;"> </span><u></u><u></u></p><div><p class="MsoNormal"><b><span style="color: rgb(95, 87, 79); font-size: 10pt;">Paul Riemer, PE, LEED AP BD+C</span></b><span style="color: rgb(31, 73, 125); font-size: 11pt;"> </span><u></u><u></u></p>
<p class="MsoNormal"><b><span style="color: rgb(192, 0, 0);">DUNHAM</span></b><u></u><u></u></p></div><p class="MsoNormal"><span style="color: rgb(31, 73, 125); font-size: 11pt;"> </span><u></u><u></u></p><div><div style="border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223) currentColor currentColor; padding: 3pt 0in 0in;">
<p class="MsoNormal"><b><span style="font-size: 10pt;">From:</span></b><span style="font-size: 10pt;"> <a href="mailto:bldg-sim-bounces@lists.onebuilding.org" target="_blank">bldg-sim-bounces@lists.onebuilding.org</a> [mailto:<a href="mailto:bldg-sim-bounces@lists.onebuilding.org" target="_blank">bldg-sim-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>James Hansen<br>
<b>Sent:</b> Tuesday, October 11, 2011 1:31 PM<br><b>To:</b> Anne Juran; <a href="mailto:bldg-sim@lists.onebuilding.org" target="_blank">bldg-sim@lists.onebuilding.org</a><br><b>Subject:</b> Re: [Bldg-sim] LEED and existing envelopes</span><u></u><u></u></p>
</div></div><p class="MsoNormal"> <u></u><u></u></p><div><p class="MsoNormal">Thanks for the responses Anne and Bill. But this seems ridiculous, and goes against everything I've done to date.<u></u><u></u></p><p class="MsoNormal">
<u></u><u></u></p><p class="MsoNormal">So if we have an existing building with no windows, and we want to reuse the building structure/skin (which LEED strongly encourages), we get penalized for wanting some daylight in the building? <u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">I think all of the references to the "baseline building envelope shall represent existing conditions" is intended to demonstrate that you can use existing window and wall coefficients, NOT that you can't add windows. But what do I know...<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">Does anyone know for sure?<u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><div><p class="MsoNormal"><b>GHT Limited<br>James Hansen, P.E., LEED AP</b><br>
Senior Associate<br>1010 N. Glebe Road, Suite 200<br>Arlington, VA 22201-4749<br><a href="tel:703-243-1200" target="_blank" value="+17032431200">703-243-1200</a> (office)<u></u><u></u></p><p class="MsoNormal"><a href="tel:703-338-5754" target="_blank" value="+17033385754">703-338-5754</a> (cell)<br>
<a href="tel:703-276-1376" target="_blank" value="+17032761376">703-276-1376</a> (fax)<u></u><u></u></p><p class="MsoNormal"><a href="http://www.ghtltd.com/" target="_blank">www.ghtltd.com</a><u></u><u></u></p></div><p class="MsoNormal">
<u></u><u></u></p><div><div><p class="MsoNormal"><b>From:</b> Anne Juran [mailto:<a href="mailto:juran@summerconsultants.com" target="_blank">juran@summerconsultants.com</a>] <br><b>Sent:</b> Tuesday, October 11, 2011 2:02 PM<br>
<b>To:</b> James Hansen; <a href="mailto:bldg-sim@lists.onebuilding.org" target="_blank">bldg-sim@lists.onebuilding.org</a><br><b>Subject:</b> RE: [Bldg-sim] LEED and existing envelopes<u></u><u></u></p></div></div><p class="MsoNormal">
<u></u><u></u></p><p class="MsoNormal">I find existing envelopes always tricky because the information is not delivered in the clearest manner. However, I think in this case the reviewer is correct, based on 90.1 Table G3.1.5 item f under “Baseline Building Performance” and page G-17 of the User’s Manual. Also, in item c they explicitly state that it applies to new buildings and additions, but do not list existing (other than the little blip about alterations and 5.1.3.)<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><div><div><p class="MsoNormal"><b>From:</b> <a href="mailto:bldg-sim-bounces@lists.onebuilding.org" target="_blank">bldg-sim-bounces@lists.onebuilding.org</a> [mailto:<a href="mailto:bldg-sim-bounces@lists.onebuilding.org" target="_blank">bldg-sim-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>James Hansen<br>
<b>Sent:</b> Tuesday, October 11, 2011 10:23 AM<br><b>To:</b> <a href="mailto:bldg-sim@lists.onebuilding.org" target="_blank">bldg-sim@lists.onebuilding.org</a><br><b>Subject:</b> [Bldg-sim] LEED and existing envelopes<u></u><u></u></p>
</div></div><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">I know this has been covered before, but I just received the following comment from a GBCI reviewer for a v3 Core and Shell project I'm working on. The project is basically an existing 5-story warehouse with almost no windows. Part of the renovation is adding windows. The comment is as follows:<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">Table 1.4.1B indicates that the window-to-gross-wall ratio is identical in both cases; however it is unclear whether any fenestration was added or removed as part of the renovation. The baseline ratio must reflect the ratio as it existed prior to the renovation and the proposed ratio must reflect the ratio as it exists after the renovation. Revise the Baseline and/or Proposed cases as necessary so that the window-to-gross-wall ratio is accurately modeled and provide a revised prerequisite form and updated energy model output summaries as necessary. <u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">I didn't think that this was the case - I thought that if you had an existing building, any EXISTING-TO-REMAIN windows would show up as the existing window type, but any NEW windows in the proposed alteration would be matched in the baseline model and comply with the Table 5.5 requirements. Meaning the WWR remained the 1:1 as long as it was < 40% glass.<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">I think this is just a matter of educating the reviewer on our building, but I wanted to make sure that there hadn't been a shift in how GBCI reviews existing buildings.<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">Thanks!<u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal"><b>GHT Limited<br>James Hansen, P.E., LEED AP</b><br>Senior Associate<br>1010 N. Glebe Road, Suite 200<br>
Arlington, VA 22201-4749<br><a href="tel:703-243-1200" target="_blank" value="+17032431200">703-243-1200</a> (office)<u></u><u></u></p><p class="MsoNormal"><a href="tel:703-338-5754" target="_blank" value="+17033385754">703-338-5754</a> (cell)<br>
<a href="tel:703-276-1376" target="_blank" value="+17032761376">703-276-1376</a> (fax)<u></u><u></u></p><p class="MsoNormal"><a href="http://www.ghtltd.com/" target="_blank">www.ghtltd.com</a><u></u><u></u></p><p class="MsoNormal">
<u></u><u></u></p><div style="text-align: center;" class="MsoNormal" align="center"><hr align="center" size="2" width="100%"></div><p class="MsoNormal">The information contained in this communication is confidential, may be privileged, and is intended only for the use of the addressee. It is the property of GHT Limited. Unauthorized use, disclosure or copying of this communication or any part thereof is strictly prohibited and may be unlawful. If you have received this communication in error, please notify me immediately by return e-mail or by e-mail to <a href="mailto:ght@ghtltd.com" target="_blank">ght@ghtltd.com</a>, and destroy this communication and all copies thereof, including all attachments. Thank you.<u></u><u></u></p>
</div><div style="text-align: center;" class="MsoNormal" align="center"><span style="color: blue; font-size: 10pt;"><hr align="center" size="2" width="100%"></span></div><p class="MsoNormal"><span style="color: black; font-size: 10pt;">The information contained in this communication is confidential, may be privileged, and is intended only for the use of the addressee. It is the property of GHT Limited. Unauthorized use, disclosure or copying of this communication or any part thereof is strictly prohibited and may be unlawful. If you have received this communication in error, please notify me immediately by return e-mail or by e-mail to </span><span style="color: black; font-size: 10pt;"><a href="mailto:ght@ghtltd.com" target="_blank"><span>ght@ghtltd.com</span></a></span><span style="color: black; font-size: 10pt;">, and destroy this communication and all copies thereof, including all attachments. Thank you.</span><u></u><u></u></p>
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