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<DIV><FONT color=#0000ff size=2 face=Arial><SPAN class=812270219-24082009>Dear
Bldg-Sim community,</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN
class=812270219-24082009></SPAN></FONT> </DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN class=812270219-24082009>On the
one hand, Lord Acton was right.</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN
class=812270219-24082009></SPAN></FONT> </DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN class=812270219-24082009>On the
other hand, my own experience as a member of an ANSI TAG (Technical Advisory
Group) was that the checks and balances normally work acceptably. My TAG
had a couple dozen members, of which about 6 represented equipment manufacturers
(I was one of those). Each of us equipment folk were very familiar with
each other's competitive advantages and were attentive to proposals which may
have favored one or another of us. The end result was essentially fair for
all, although one who will remain nameless couldn't be faulted for effort to
bias the standard!</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN
class=812270219-24082009></SPAN></FONT> </DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN class=812270219-24082009>Any
human effort will be flawed to some extent!</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN
class=812270219-24082009></SPAN></FONT> </DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN class=812270219-24082009>USGBC
(and ASHRAE) seem to be interested in gradual improvement, so I hope that
infiltration will be one of their targets in the future. That said,
infiltration is subject to so many details of proper installation that any
modeling effort is unlikely (unable?) to represent it well.</SPAN></FONT></DIV>
<DIV> </DIV>
<DIV class=Section1>
<P style="TEXT-ALIGN: center" class=MsoNormal align=center><B
style="mso-bidi-font-weight: normal"><FONT size=4>The Building Performance
Team<BR></FONT></B><B style="mso-bidi-font-weight: normal">James V. Dirkes II,
P.E., LEED AP<BR></B>1631 Acacia Drive NW<BR>Grand Rapids, MI 49504<BR>616
450 8653<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P></DIV>
<DIV> </DIV><BR>
<BLOCKQUOTE style="MARGIN-RIGHT: 0px" dir=ltr>
<DIV dir=ltr lang=en-us class=OutlookMessageHeader align=left>
<HR tabIndex=-1>
<FONT size=2 face=Tahoma><B>From:</B> 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<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT color=#1f497d size=2 face=Calibri><SPAN
style="FONT-FAMILY: Calibri; COLOR: #1f497d; FONT-SIZE: 11pt">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></FONT></P>
<P class=MsoNormal><FONT color=#1f497d size=2 face=Calibri><SPAN
style="FONT-FAMILY: Calibri; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=#1f497d size=2 face=Calibri><SPAN
style="FONT-FAMILY: Calibri; COLOR: #1f497d; FONT-SIZE: 11pt">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></FONT></P>
<P class=MsoNormal><FONT color=#1f497d size=2 face=Calibri><SPAN
style="FONT-FAMILY: Calibri; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=#1f497d size=2 face=Calibri><SPAN
style="FONT-FAMILY: Calibri; COLOR: #1f497d; FONT-SIZE: 11pt">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></FONT></P>
<P class=MsoNormal><FONT color=#1f497d size=2 face=Calibri><SPAN
style="FONT-FAMILY: Calibri; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=#1f497d size=2 face=Calibri><SPAN
style="FONT-FAMILY: Calibri; COLOR: #1f497d; FONT-SIZE: 11pt">Paul Grahovac,
LEED AP<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=#1f497d size=2 face=Calibri><SPAN
style="FONT-FAMILY: Calibri; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">American Society of Mechanical Engineers. Inc. v.
Hydrolevel Corporation, <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">456 U.S. 556, 102 S.Ct. 1935, 72 L.Ed.2d.
330<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">(1982), Supreme Court Justice Blackmun, writing for
the majority:<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">“Furthermore, a standard setting organization like
ASME can be rife with<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">opportunities for anti competitive activity. Many of
ASME's officials are<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">associated with members of the industries regulated
by ASME's codes.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">Although, undoubtedly, most serve ASME without
concern for the interests of<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">their corporate employers, some may well view their
positions with ASME, at<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">least in part, as an opportunity to benefit their
employers. When the great<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><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></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">ASME's agents have an opportunity to harm their
employers' competitors<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">through manipulation of ASME's
codes.”<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face=Arial><SPAN
style="FONT-FAMILY: Arial; FONT-SIZE: 12pt">ID.., </SPAN></FONT><FONT
size=3><SPAN style="FONT-SIZE: 11.5pt">at 571, 102 S.Ct., at
1946.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><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></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><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></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">trade organization that had manipulated the trade
organization and its role in the industry </SPAN></FONT><FONT size=2
face=Arial><SPAN style="FONT-FAMILY: Arial; FONT-SIZE: 11pt">to
</SPAN></FONT><FONT size=3><SPAN
style="FONT-SIZE: 11.5pt">set<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">standards designed to enrich those members'
corporation and diminish the ability of its<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><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></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">responsible for the actions of its members, the
Court explained:</SPAN></FONT><FONT color=#1f497d size=2 face=Calibri><SPAN
style="FONT-FAMILY: Calibri; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face=Arial><SPAN
style="FONT-FAMILY: Arial; FONT-SIZE: 11.5pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face=Arial><SPAN
style="FONT-FAMILY: Arial; FONT-SIZE: 11.5pt">“It </SPAN></FONT><FONT
size=3><SPAN style="FONT-SIZE: 11.5pt">is true that imposing liability on
ASME's agents themselves will have some<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">deterrent effect, because they will know that if
they violate antitrust laws through<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">their participation in ASME, they risk the
consequences of personal civil liability.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><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></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">acting with apparent authority, it is much more
likely that similar antitrust<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">violation will not occur in the future. "Pressure
will be brought on the<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><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></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><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></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><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></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">agents unlikely, and the possibility of civil
liability will inevitably be a powerful<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><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></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">standard setting organization- which is best
situated to prevent antitrust violations<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><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></FONT></P>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 11.5pt">the private right of action deters antitrust
violations.”<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=4 face="Times New Roman"><SPAN
style="FONT-SIZE: 12.5pt">14:., </SPAN></FONT><FONT size=3><SPAN
style="FONT-SIZE: 11.5pt">at 572-573, 102 S.Ct., at 1946.</SPAN></FONT><FONT
color=#1f497d size=2 face=Calibri><SPAN
style="FONT-FAMILY: Calibri; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=#1f497d size=2 face=Calibri><SPAN
style="FONT-FAMILY: Calibri; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=navy size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=navy size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<DIV style="TEXT-ALIGN: center" class=MsoNormal align=center><FONT size=3
face="Times New Roman"><SPAN style="FONT-SIZE: 12pt">
<HR tabIndex=-1 align=center SIZE=2 width="100%">
</SPAN></FONT></DIV>
<P class=MsoNormal><B><FONT size=2 face=Tahoma><SPAN
style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt; FONT-WEIGHT: bold">From:</SPAN></FONT></B><FONT
size=2 face=Tahoma><SPAN style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt"> Marcus
Sheffer [mailto:sheffer@energyopportunities.com] <BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Monday, August 24, 2009 8:22
AM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> Paul Grahovac;
bldg-sim@lists.onebuilding.org<BR><B><SPAN
style="FONT-WEIGHT: bold">Subject:</SPAN></B> RE: [Bldg-sim] Air leakage,
LEED, and Appendix G of ASHRAE 90.1</SPAN></FONT><o:p></o:p></P></DIV>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=#1f497d size=2 face=Calibri><SPAN
style="FONT-FAMILY: Calibri; COLOR: #1f497d; FONT-SIZE: 11pt">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></FONT></P>
<P class=MsoNormal><FONT color=#1f497d size=2 face=Calibri><SPAN
style="FONT-FAMILY: Calibri; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=#1f497d size=2 face=Calibri><SPAN
style="FONT-FAMILY: Calibri; COLOR: #1f497d; FONT-SIZE: 11pt">Marcus Sheffer,
Chair – USGBC EA TAG<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=#1f497d size=2 face=Calibri><SPAN
style="FONT-FAMILY: Calibri; COLOR: #1f497d; FONT-SIZE: 11pt">7group<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=#1f497d size=2 face=Calibri><SPAN
style="FONT-FAMILY: Calibri; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=#1f497d size=2 face=Calibri><SPAN
style="FONT-FAMILY: Calibri; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<DIV
style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<P class=MsoNormal><B><FONT size=2 face=Tahoma><SPAN
style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt; FONT-WEIGHT: bold">From:</SPAN></FONT></B><FONT
size=2 face=Tahoma><SPAN style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt">
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <B><SPAN
style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Paul Grahovac<BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Wednesday, August 19, 2009 7:00
PM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B>
bldg-sim@lists.onebuilding.org<BR><B><SPAN
style="FONT-WEIGHT: bold">Subject:</SPAN></B> [Bldg-sim] Air leakage, LEED,
and Appendix G of ASHRAE 90.1<o:p></o:p></SPAN></FONT></P></DIV></DIV>
<P class=MsoNormal><FONT size=3 face="Times New Roman"><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">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></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">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></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">I see in Appendix G
that: “G3.1.2.5. <B><SPAN
style="FONT-WEIGHT: bold">Ventilation</SPAN></B>. Minimum <I><SPAN
style="FONT-STYLE: italic">outdoor air</SPAN></I> ventilation rates shall be
the same for the <I><SPAN style="FONT-STYLE: italic">proposed</SPAN></I> and
<I><SPAN style="FONT-STYLE: italic">baseline building
designs</SPAN></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></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">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></FONT><FONT
size=2 face=Arial><SPAN style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">Offers
information on the intent and application of Standard
90.1.”</SPAN></FONT> <FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">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></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">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></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">Thanks,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">Paul Grahovac, LEED
AP<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">R-GUARD Air &
Water-Resistive Barrier Product Manager<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">PROSOCO,
Inc.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">3741 Greenway
Circle<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">Lawrence,
Kansas 66046<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">(785)
830-7355<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">(888) 376-3417
fax<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt"><A
href="mailto:pgrahovac@prosoco.com">pgrahovac@prosoco.com</A><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT color=black size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">web site <A
href="http://www.prosoco.com/">http://www.prosoco.com/</A><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT size=2 face=Arial><SPAN
style="FONT-FAMILY: Arial; FONT-SIZE: 10pt"><o:p> </o:p></SPAN></FONT></P>
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