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<div class=Section1>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Miss Brenda:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>My suggestion is that LEED <b><i><u>immediately</u></i></b>
start to require a goal for air leakage and testing of that goal after
construction along with <b><i><u>requiring</u></i></b> building envelope
commissioning. The current waste of energy and carbon impact is immense
not just in energy operating costs but in dramatically shortened useful life of
building envelope components and entire facades and roofs. Most building
envelope components reach the end of their useful life at 40 to 60 percent of
the time they should last. This is one of the largest contributors to
lack of sustainability in the world. The significant factors in this are poor/improper
installation and lack of maintenance. Based upon our rough observations,
most NEW buildings are at double to triple the ‘by code’ air
leakage rate because there is no inspection, testing, and building envelope
commissioning.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Those who say the technology does not exist to do the inspecting
and testing are not truthful. It can be done today. It is not free
but the return is huge. Certainly there should be the same requirements
in code, but a good start is you folks, Energy Star and the new ASHRAE rating
system.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>This is an opportunity for USGBC to LEED ™, pun intended </span><span
style='font-size:11.0pt;font-family:Wingdings;color:#1F497D'>J</span><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>, the
way. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Wow, that 2 cents felt good.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thanks,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Andy<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Andy Hoover</span><span style='color:navy'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Principal<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>The BEST Consultant, Inc.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Office: 678-200-7648<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Fax:678-827-0574<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Cell: 678-793-1159<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:navy'><a
href="http://www.thebestconsultant.com">www.thebestconsultant.com</a></span><span
style='color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span
style='font-size:10.0pt;color:#1F497D'>
<hr size=3 width="100%" align=center>
</span></div>
</div>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:gray'>This message may contain confidential and/or privileged
information. If you are not the addressee or authorized to receive this
information for the addressee, you must not use, copy, disclose, or take any
action based on this message or information herein. If you have received this
message in error, please advise the sender immediately by reply e-mail and
delete this message. Thank you for your cooperation.</span><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Brenda V.
Morawa<br>
<b>Sent:</b> Monday, August 24, 2009 5:18 PM<br>
<b>To:</b> 'Paul Carey'; 'Paul Grahovac'; sheffer@energyopportunities.com;
bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Bldg-sim] Air leakage, LEED, and Appendix G of ASHRAE 90.1<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I don’t think any of us disagree that there are
significant benefits to be had by having tighter buildings. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Part of the issue is the lack of a documented base line here in
the US. I’m not aware of any (enforced or otherwise) baseline that
is required and/or published. Does anyone else have that data?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Additionally, projects are not required, at this point in time,
to demonstrate or document air leakage rates after construction. So that
is typically leaving us with two variables in a model that are based on the
modeler’s best judgment. Understanding many things in the model are
the ‘modelers best judgment’, at this point, we need more to go on.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> My unofficial two cents…<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>The good thing about this is there’s always room for
improvement and there are a good many, very well intentioned volunteers working
on improving the system…<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Brenda V. Morawa, PE, QCxP, HPBDP, LEED AP<o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>President/Principal<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Co-Vice Chair, USGBC Implementation Committee<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><img border=0 width=120 height=69 id="_x0000_i1032"
src="cid:image001.jpg@01CA266D.A9AC90F0" alt=BVMELogo3jpg><o:p></o:p></span></p>
<p class=MsoNormal style='margin-top:6.0pt'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:black'>BVM Engineering, Inc.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>834 Inman Village Parkway<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Suite 230<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Atlanta, Georgia 30307<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>404.806.2018 x 101<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>(c)404.210.6593<o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Paul Carey
[mailto:paul@zed-uk.com] <br>
<b>Sent:</b> Monday, August 24, 2009 4:47 PM<br>
<b>To:</b> 'Brenda V. Morawa'; 'Paul Grahovac'; sheffer@energyopportunities.com;
bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> RE: [Bldg-sim] Air leakage, LEED, and Appendix G of ASHRAE 90.1<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Dear Paul, et al<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I have to agree with Paul’s comments on this one.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>We can and have to take account of infiltration reductions within
our UK building regulations calculations and indeed in certain circumstances
they can be the difference between different grades for the buildings when
thermal mass and other passive design techniques or super efficient HVAC
systems have been taken into account.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>At the design stage you “choose” an infiltration
rate that the design team is willing to take the risk on achieving and if not
you can use a default infiltration rate which equates to a reasonably well
built modern building (this obviously gets reviewed and reduced a little over
time to increase the requirements). The key to it being that in order for
the builder to obtain the building regulations and occupation certificates, the
actual measured air infiltration rates have to be put into the design
simulation model post build to ensure that what the design team has said will
be achieved, is actually achieved. In fact it is possibly at the moment
one of the most successful parts of our regulations.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>This has 2 main benefits, it means that contractors have to
think about the quality of their build and good detailing from the start and
subsequently if they allow a poor building to be built that exceeds the minimum
standards or their chosen design value, they have to go and identify the air
leakage paths and bring the building up to that standard before they can get an
occupation certificate.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>When you consider that our default air leakage rate is 10m3/hr
and we see many large commercial warehousing projects (a good example where
composite panels are often used for air tight seals) that have leakage rates of
less than 2m3/hr.m2 it is possible to see that large benefits might be possible
in some instances. On a large warehouse with perhaps background heating
for the operatives, this reduction in infiltration can result in very large
reductions in energy use/carbon emissions for heating, etc.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I am slightly surprised that a USGBC/ASHRAE baseline rate
doesn’t exist to allow benefits to be taken into account, especially when
it is possible to use the test results to enforce improvements to be made, in a
way it acts as both carrot and stick.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Regards<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Paul<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0
style='border-collapse:collapse'>
<tr>
<td width=271 rowspan=2 valign=top style='width:162.3pt;padding:0in 5.4pt 0in 5.4pt'>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><img border=0 width=142 height=154 id="_x0000_i1025"
src="cid:image002.jpg@01CA266D.A9AC90F0"><o:p></o:p></span></p>
</td>
<td width=264 valign=top style='width:158.55pt;padding:0in 5.4pt 0in 5.4pt'>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Dr Paul Carey<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>BSc (Hons) PhD FRSA<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Director<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Low Carbon Energy Assessor<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
</td>
<td width=263 valign=top style='width:157.95pt;padding:0in 5.4pt 0in 5.4pt'>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Zero Energy Design Ltd<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>10A Portland Place<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>2-22 Mottram Road<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Stalybridge<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>SK15 3AD<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
</td>
</tr>
<tr>
<td width=264 valign=top style='width:158.55pt;padding:0in 5.4pt 0in 5.4pt'>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>T: 0161 3386200<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>F: 0161 3031281<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>M: 0789 4098012<o:p></o:p></span></p>
</td>
<td width=263 valign=top style='width:157.95pt;padding:0in 5.4pt 0in 5.4pt'>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>E: paul@zed-uk.com<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>W: www.zed-uk.com<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
</td>
</tr>
<tr>
<td width=271 valign=top style='width:162.3pt;padding:0in 5.4pt 0in 5.4pt'>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><img border=0 width=200 height=81 id="Picture_x0020_2"
src="cid:image003.jpg@01CA266D.A9AC90F0"><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
</td>
<td width=264 valign=top style='width:158.55pt;padding:0in 5.4pt 0in 5.4pt'>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
</td>
<td width=263 valign=top style='width:157.95pt;padding:0in 5.4pt 0in 5.4pt'>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
</td>
</tr>
<tr>
<td width=271 valign=top style='width:162.3pt;padding:0in 5.4pt 0in 5.4pt'>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><img border=0 width=110 height=88 id="Picture_x0020_3"
src="cid:image004.jpg@01CA266D.A9AC90F0"><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Certificate No: GB16647<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
</td>
<td width=264 valign=top style='width:158.55pt;padding:0in 5.4pt 0in 5.4pt'>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><img border=0 width=110 height=88 id="Picture_x0020_4"
src="cid:image005.jpg@01CA266D.A9AC90F0"><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Certificate No: GB16646<o:p></o:p></span></p>
</td>
<td width=263 valign=top style='width:157.95pt;padding:0in 5.4pt 0in 5.4pt'>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
</td>
</tr>
</table>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"MS Reference Sans Serif","sans-serif";
color:green'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"MS Reference Sans Serif","sans-serif";
color:green'>Please carefully consider the environment before you print this
email.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"MS Reference Sans Serif","sans-serif";
color:green'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";
color:#1F497D'>Company Registered in England & Wales. Registration
No. 5815068<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";
color:#1F497D'>Registered Address: 10A Portland Place, 2-22 Mottram Road,
Stalybridge, SK15 3AD, UK.</span><span style='color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> <o:p></o:p></span></p>
<p class=MsoNormal><u><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";
color:#1F497D'>Privilege and Confidentiality Notice:</span></u><u><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></u></p>
<p class=MsoNormal style='margin-right:6.75in'><span style='font-size:10.0pt;
font-family:"Verdana","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";
color:#1F497D'>This email and any attachments to it are intended only for the
party to whom they are addressed. They may contain privileged and/or
confidential information. If you have received this transmission in
error, please notify the sender immediately and delete any digital copies and
destroy any paper copies. Thank you.</span><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Brenda V.
Morawa<br>
<b>Sent:</b> 24 August 2009 15:11<br>
<b>To:</b> 'Paul Grahovac'; sheffer@energyopportunities.com;
bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Bldg-sim] Air leakage, LEED, and Appendix G of ASHRAE 90.1<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Paul,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Perhaps you should volunteer YOUR time on the ASHRAE 90.1
committee.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Brenda V. Morawa, PE, QCxP, HPBDP, LEED AP<o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>President/Principal<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Co-Vice Chair, USGBC Implementation Committee<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><img border=0 width=120 height=69 id="_x0000_i1029"
src="cid:image001.jpg@01CA266D.A9AC90F0" alt=BVMELogo3jpg><o:p></o:p></span></p>
<p class=MsoNormal style='margin-top:6.0pt'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:black'>BVM Engineering, Inc.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>834 Inman Village Parkway<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Suite 230<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Atlanta, Georgia 30307<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>404.806.2018 x 101<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>(c)404.210.6593<o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Paul Grahovac
[mailto:paul.grahovac@prosoco.com] <br>
<b>Sent:</b> Monday, August 24, 2009 10:09 AM<br>
<b>To:</b> Brenda V. Morawa; sheffer@energyopportunities.com;
bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> Air leakage, LEED, and Appendix G of ASHRAE 90.1<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>My understanding is that one of the co-founders of the Air
Barrier Association of America is actively involved with the committee, and I
have an e-mail from him confirming that reduction in air leakage can be modeled
and the energy savings used in the award of LEED points.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>However, given the contrary position I am hearing, I am
beginning to become concerned that some approach other than begging ASHRAE and
USGBC to be reasonable needs to be considered.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Paul Grahovac, LEED AP<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Brenda V. Morawa
[mailto:bren@bvm-engineering.com] <br>
<b>Sent:</b> Monday, August 24, 2009 9:01 AM<br>
<b>To:</b> Paul Grahovac; sheffer@energyopportunities.com;
bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> RE: [Bldg-sim] Air leakage, LEED, and Appendix G of ASHRAE 90.1<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Paul,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Perhaps you should volunteer your time on the ASHRAE 90.1
committee.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Brenda V. Morawa, PE, QCxP, HPBDP, LEED AP<o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>President/Principal<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Co-Vice Chair, USGBC Implementation Committee<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><img border=0 width=120 height=69 id="Picture_x0020_1"
src="cid:image001.jpg@01CA266D.A9AC90F0" alt=BVMELogo3jpg><o:p></o:p></span></p>
<p class=MsoNormal style='margin-top:6.0pt'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:black'>BVM Engineering, Inc.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>834 Inman Village Parkway<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Suite 230<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Atlanta, Georgia 30307<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>404.806.2018 x 101<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>(c)404.210.6593<o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Paul
Grahovac<br>
<b>Sent:</b> Monday, August 24, 2009 9:55 AM<br>
<b>To:</b> sheffer@energyopportunities.com; bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> [Bldg-sim] Air leakage, LEED, and Appendix G of ASHRAE 90.1<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I am sure there is just as much baseline for air leakage
reduction benefit as there is for the concrete walls and wooden studs that the
User’s Manual says can be modeled and their energy savings captured for
inclusion in the overall modeling results.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I cannot accept that the USGBC and ASHRAE can arbitrarily say
reduction in air leakage will not be considered, but that increases in thermal
mass energy-savings from using concrete walls or energy benefits from using
wooden studs will be used to compute building energy performance. This
obviously rewards concrete block producers and wood stud suppliers and
penalizes air barrier suppliers. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I’m reminded of Lord Acton’s famous
observation: “Power corrupts, and absolute power corrupts
absolutely.” Fortunately, even the power of organizations like
ASHRAE and USGBC are subject to some ultimate check. Such organizations
are prohibited by law from arbitrary practices that favor one group over
another. Below are excerpts from the leading United States Supreme Court
case on the subject. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Paul Grahovac, LEED AP<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>American Society of Mechanical
Engineers. Inc. v. Hydrolevel Corporation, <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>456 U.S. 556, 102 S.Ct. 1935,
72 L.Ed.2d. 330<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>(1982), Supreme Court Justice
Blackmun, writing for the majority:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>“Furthermore, a
standard setting organization like ASME can be rife with<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>opportunities for anti
competitive activity. Many of ASME's officials are<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>associated with members of
the industries regulated by ASME's codes.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>Although, undoubtedly, most
serve ASME without concern for the interests of<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>their corporate employers,
some may well view their positions with ASME, at<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>least in part, as an
opportunity to benefit their employers. When the great<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>influence of ASME's
reputation is placed at their disposal, the less altruistic of<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>ASME's agents have an
opportunity to harm their employers' competitors<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>through manipulation of
ASME's codes.”<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>ID.., </span><span
style='font-size:11.5pt'>at 571, 102 S.Ct., at 1946.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>In American Society of
Mechanical Engineers, the U.S. Supreme Court affirmed a jury<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>verdict that awarded treble
damages to the company that was injured by certain members of the<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>trade organization that had
manipulated the trade organization and its role in the industry </span><span
style='font-size:11.0pt;font-family:"Arial","sans-serif"'>to </span><span
style='font-size:11.5pt'>set<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>standards designed to enrich
those members' corporation and diminish the ability of its<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>competitors to fairly compete
in the marketplace. In deciding to hold the trade organization<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>responsible for the actions
of its members, the Court explained:</span><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt;font-family:"Arial","sans-serif"'>“It
</span><span style='font-size:11.5pt'>is true that imposing liability on ASME's
agents themselves will have some<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>deterrent effect, because
they will know that if they violate antitrust laws through<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>their participation in ASME,
they risk the consequences of personal civil liability.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>But if, in addition, ASME is
civilly liable for the antitrust violations of its agents<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>acting with apparent
authority, it is much more likely that similar antitrust<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>violation will not occur in
the future. "Pressure will be brought on the<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>organization to see to it
that its agents abide by the law." United States v. A&P<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>Trucking Co., 358 U.S. 121,
126, 79 S.Ct. 203, 207, 3 L.Ed.2d 165 (1958). Only<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>ASME can take systematic
steps to make improper conduct on the part of all its<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>agents unlikely, and the
possibility of civil liability will inevitably be a powerful<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>incentive for ASME to take
those steps. Thus, a rule that imposes liability on the<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>standard setting
organization- which is best situated to prevent antitrust violations<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>through the abuse of its
reputation-is most faithful to the congressional intent that<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.5pt'>the private right of action
deters antitrust violations.”<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.5pt'>14:., </span><span
style='font-size:11.5pt'>at 572-573, 102 S.Ct., at 1946.</span><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<div>
<div class=MsoNormal align=center style='text-align:center'>
<hr size=2 width="100%" align=center>
</div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Marcus Sheffer
[mailto:sheffer@energyopportunities.com] <br>
<b>Sent:</b> Monday, August 24, 2009 8:22 AM<br>
<b>To:</b> Paul Grahovac; bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> RE: [Bldg-sim] Air leakage, LEED, and Appendix G of ASHRAE 90.1</span><o:p></o:p></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>As I understand it the issue is that the 90.1 Standard does not
establish a base line condition for air leakage so no savings can be
claimed. I certainly agree that the savings are real and should be
counted. I know that the Appendix G committee has this issue on their
extensive “to do” list.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Marcus Sheffer, Chair – USGBC EA TAG<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>7group<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Paul
Grahovac<br>
<b>Sent:</b> Wednesday, August 19, 2009 7:00 PM<br>
<b>To:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> [Bldg-sim] Air leakage, LEED, and Appendix G of ASHRAE 90.1<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>The National Institute of Standards and Technology (NIST) did an
extensive study documenting a greater than 40% natural gas savings and a
greater than 25% electricity savings across the nation for building energy
consumption if buildings were uniformly constructed with air barrier systems
installed. They evaluated 116 existing buildings and computer modeled
several different building types. The purpose of their study was to
provide information to ASHRAE concerning whether it would be desirable to add
an air barrier requirement to ASHRAE 90.1.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>As a result, I’ve always thought that Appendix G to ASHRAE
90.1 allows you to change the air leakage rate off the default and onto a rate
corresponding to an air barrier installation, so that you could claim LEED
points for the corresponding energy savings. However, an architect at a
presentation I did said you could not do that under the LEED and ASHRAE requirements.
(I know the models will do it, because I’ve done it on the TRANE model
and obtained results that support the NIST findings.)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>I see in Appendix G that: “G3.1.2.5. <b>Ventilation</b>.
Minimum <i>outdoor air</i> ventilation rates shall be the same for the <i>proposed</i>
and <i>baseline building designs</i>.” However, I searched the
document for “outdoor air ventilation” and the phrase occurs only
in the context of mechanical systems that are designed to intentionally bring
air into the building. If this section is the basis for concluding that
air leakage barriers should be left out of the modeling, then I have trouble
understanding why.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:black'>Appendix G says that all
components of the building are to be modeled as designed. That would
preclude modeling as if an air barrier system did not exist in the
design. It says the baseline building model is to have steel-framed
above-grade walls, and it is silent about the design building, but the
User’s Manual says that if the design building walls are block or cast
concrete, then “the mass is credited in the building performance rating
method.” Likewise, if the walls are wood stud instead of steel,
then the Manual says credit is given for the superior energy performance of
wood frame versus steel frame. The User’s Manual states that
it: “</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Offers
information on the intent and application of Standard 90.1.”</span>
<span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Given
these examples in the Manual based on existing thermal mass energy-saving data
and wood-versus-steel stud energy data, it is difficult to conclude that a wall
that is constructed with materials meeting the air leakage limits and
installation requirements of the Air Barrier Association of America and
determined to produce significant energy savings by the NIST study based on
those same limits and requirements should be modeled as if it leaked air like a
building without an air barrier. </span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Please let me know what you think, and if you know of any reason
why it is not proper to change the air leakage rate through the building
envelope in the design model to show the benefit of air barriers.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Thanks,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:black'>Paul Grahovac, LEED AP<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:black'>R-GUARD Air & Water-Resistive
Barrier Product Manager<o:p></o:p></span></p>
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<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
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<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:black'>Lawrence, Kansas 66046<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:black'>(785) 830-7355<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:black'>(888) 376-3417 fax<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:black'><a
href="mailto:pgrahovac@prosoco.com">pgrahovac@prosoco.com</a><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:black'>web site <a
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
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