<div dir="ltr">Sorry, I should have qualified the envelope stringent-ness with an ***in MY area*** note (CZ5). That isn't the case with all climate zones. </div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><b>Elizabeth Gillmor <font size="1">PE, BEMP, LC, LEED AP</font></b><div><br></div><div><span style="font-size:large;background-color:rgb(255,255,255)"><b><font color="#38761d" face="arial, helvetica, sans-serif">e n e r g e t i c s </font></b></span><b><font color="#38761d" face="arial, helvetica, sans-serif" size="2">consulting engineers, llc</font></b></div><div><font size="2" style="background-color:rgb(255,255,255)" color="#666666"><a href="http://energetics-eng.com" target="_blank">energetics-eng.com</a> |</font><span style="color:rgb(102,102,102);font-size:small"> 303.619.0091</span></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
<br><div class="gmail_quote">On Mon, May 2, 2016 at 11:38 AM, Elizabeth Gillmor <span dir="ltr"><<a href="mailto:elizabeth@energetics-eng.com" target="_blank">elizabeth@energetics-eng.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">I just did a little seminar on this very topic for our Rocky Mountain ASHRAE tech conference last week. There are a few other key differences in 90.1:<div><br><div>- Mandatory occupancy and daylighting controls in parking garages</div><div>- Bi-level occ sensors required in stairwells</div><div>- Slightly more stringent cooling efficiency requirements (full load and part load, also slightly lower economizer thresholds). Differences in heat pumps as well I believe.</div><div>- More stringent envelope requirements (walls and windows). Also note limits to E/W glazing which may require that you rotate/average the baseline.</div></div><div><br></div><div>Other important items to note:</div><div><br></div><div>- A90.1 has MANDATORY electrical submetering requirements (separate monitoring for lighting, receptacles, and HVAC, plus some whole-building requirements) -- this is a biggie. Read section 8-Power thoroughly!</div><div>- You CAN take credit for renewable energy (up to 5%)</div><div>- A90.1 does not have the same commissioning requirements</div><div>- A90.1 allows extra lighting credit for room geometry adjustments and some extra lighting controls (see control factor table), whereas IECC does not</div><div><br></div><div><br></div><div>This is not a comprehensive list but those are the big ones that jump out. Whichever method you choose, make sure you are using the space-by-space method for lighting (it will almost always come out better than whole-building).</div><div><br></div><div>Cheers,</div><div>Elizabeth</div><div><br></div></div><div class="gmail_extra"><br clear="all"><div><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><b>Elizabeth Gillmor <font size="1">PE, BEMP, LC, LEED AP</font></b><div><br></div><div><span style="font-size:large;background-color:rgb(255,255,255)"><b><font color="#38761d" face="arial, helvetica, sans-serif">e n e r g e t i c s </font></b></span><b><font color="#38761d" face="arial, helvetica, sans-serif" size="2">consulting engineers, llc</font></b></div><div><font size="2" style="background-color:rgb(255,255,255)" color="#666666"><a href="http://energetics-eng.com" target="_blank">energetics-eng.com</a> |</font><span style="color:rgb(102,102,102);font-size:small"> <a href="tel:303.619.0091" value="+13036190091" target="_blank">303.619.0091</a></span></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
<br><div class="gmail_quote">On Mon, May 2, 2016 at 11:08 AM, Duggin, Cory via Bldg-sim <span dir="ltr"><<a href="mailto:bldg-sim@lists.onebuilding.org" target="_blank">bldg-sim@lists.onebuilding.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal">Does anyone have experience showing code compliance via the performance path in 90.1-2013 vs 2015 IECC? I have a project that isn’t meeting the 15% threshold against the 2015 IECC standard reference design (per C401.2(3)). I have always
thought the 15% was to level the compliance paths, but the main difference I am finding between the 2015 IECC SRD and 90.1-2013 budget building is the mandatory plug load control requirement. What am I missing to account for the 15% difference?<u></u><u></u></p>
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<p class="MsoNormal">Thanks,<u></u><u></u></p>
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<p class="MsoNormal"><b>Cory Duggin, PE, LEED AP BD+C, BEMP<u></u><u></u></b></p>
<p class="MsoNormal"><i><span style="font-size:10.0pt">Principal/Energy Modeling Wizard</span></i><i><u></u><u></u></i></p>
<p class="MsoNormal"><b><span style="color:#006363">TLC Engineering for Architecture<u></u><u></u></span></b></p>
<p class="MsoNormal"><span style="font-size:10.0pt">6 Cadillac Drive, Suite 200<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Brentwood, TN 37027-5080<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt"><a href="http://www.tlc-engineers.com/" target="_blank"><span style="color:blue">www.tlc-engineers.com</span></a><u></u><u></u></span></p>
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