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<DIV><FONT face=Arial><FONT size=2><SPAN class=465114720-06092007><SPAN
class=339454321-06092007><FONT color=#000000>H</FONT></SPAN>ello All,<SPAN
class=339454321-06092007><FONT
color=#0000ff> </FONT></SPAN></SPAN></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2><SPAN class=465114720-06092007><SPAN
class=339454321-06092007></SPAN></SPAN></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT size=2><FONT><SPAN class=465114720-06092007><SPAN
class=339454321-06092007> </SPAN></SPAN><SPAN class=465114720-06092007>I
have a question that pertains to ASHRAE 90.1-2004, Appendix G, Table G3.1, No.5,
which details modeling requirements for calculating proposed and baseline
building performance for the building envelope.<SPAN
class=392393821-06092007><FONT color=#0000ff> </FONT><FONT
color=#ff00ff><FONT color=#000000>I'd appreciate any thoughts you all might have
on this LEED modeling.</FONT> </FONT><FONT color=#0000ff><SPAN
class=339454321-06092007> </SPAN></FONT></SPAN></SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2><FONT><SPAN class=465114720-06092007><SPAN
class=392393821-06092007><FONT color=#0000ff><SPAN
class=339454321-06092007></SPAN></FONT></SPAN></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT size=2><FONT><SPAN class=465114720-06092007><SPAN
class=392393821-06092007><FONT color=#0000ff><SPAN
class=339454321-06092007> </SPAN></FONT></SPAN></SPAN></FONT><SPAN
class=465114720-06092007>We are currently working with a client on a building
with a window-wall ratio of 27%. The WWR was reduced from 40% by the architect
in order to obtain higher energy cost savings. When building the baseline model,
Appendix G states:<SPAN class=339454321-06092007><FONT
color=#0000ff> </FONT></SPAN></SPAN></FONT></FONT></DIV>
<DIV><FONT><FONT size=2><SPAN class=465114720-06092007><SPAN
class=339454321-06092007></SPAN></SPAN></FONT></FONT><SPAN
class=465114720-06092007><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=339454321-06092007> </SPAN></FONT></FONT></FONT></SPAN></DIV>
<DIV><FONT face=Arial><FONT size=2><SPAN
class=465114720-06092007><FONT><FONT><FONT color=#0000ff><SPAN
class=339454321-06092007> </SPAN>"Vertical fenestration areas for new
building and additions shall equal that in the proposed design or 40% of gross
above-grade wall area, which ever is smaller..."<SPAN
class=339454321-06092007> </SPAN></FONT></FONT></FONT></SPAN></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2><SPAN
class=465114720-06092007><FONT><FONT><FONT color=#0000ff><SPAN
class=339454321-06092007></SPAN></FONT></FONT></FONT></SPAN></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT size=2><FONT><SPAN
class=465114720-06092007><FONT><FONT><FONT color=#0000ff><SPAN
class=339454321-06092007> </SPAN></FONT></FONT></FONT></SPAN><SPAN
class=465114720-06092007>Our client believes that since in the schematic design,
the WWR was over 40% and was then reduced to below 27% for energy efficiency
reasons, the baseline building should be modeled with a 40% WWR to show these
savings due to architectural design.<SPAN class=339454321-06092007><FONT
color=#0000ff> </FONT></SPAN></SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2><FONT><SPAN class=465114720-06092007><SPAN
class=339454321-06092007></SPAN></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT><FONT face=Arial><FONT size=2><FONT><SPAN
class=465114720-06092007><SPAN
class=339454321-06092007> </SPAN></SPAN></FONT><SPAN
class=465114720-06092007>I understand that the proposed design stated in
Appendix G refers to the building that is going to be built, or the 100% CD
drawings. However, our client wants to see the definition of "proposed design"
from ASHRAE that explicitly states what the proposed design is. After
researching for a while, I found Addendum A, which states on page 4 of the
Addendum:<SPAN class=339454321-06092007><FONT
color=#0000ff> </FONT></SPAN></SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT><FONT face=Arial><FONT size=2><SPAN class=465114720-06092007><SPAN
class=339454321-06092007></SPAN></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT><FONT face=Arial><FONT size=2><SPAN class=465114720-06092007><SPAN
class=339454321-06092007> </SPAN></SPAN></FONT></FONT></FONT><SPAN
class=465114720-06092007><SPAN class=394344520-21082007><FONT face=Arial><FONT
color=#0000ff><FONT size=2>G3.1 <B>Proposed Design Model. </B>The simulation
model o<SPAN class=339454321-06092007> f </SPAN><SPAN
class=339454321-06092007> </SPAN><SPAN
class=339454321-06092007> </SPAN></FONT></FONT></FONT></SPAN></SPAN></DIV>
<DIV><SPAN class=465114720-06092007><FONT size=+0><SPAN
class=394344520-21082007><FONT face=Arial><FONT size=2><SPAN
class=339454321-06092007> </SPAN><FONT color=#0000ff>the <I>proposed design
</I>shall be consistent with the design documents,<SPAN
class=339454321-06092007> </SPAN></FONT></FONT></FONT></SPAN></FONT></SPAN></DIV>
<DIV><SPAN class=465114720-06092007><FONT size=+0><SPAN
class=394344520-21082007><FONT face=Arial><FONT color=#0000ff><FONT
size=2><FONT><FONT><SPAN class=339454321-06092007> </SPAN></FONT>including
proper accounting of fenestration and<SPAN
class=339454321-06092007> </SPAN></FONT></FONT></FONT></FONT></SPAN></FONT></SPAN></DIV>
<DIV><SPAN class=465114720-06092007><FONT size=+0><SPAN
class=394344520-21082007><FONT face=Arial><FONT size=2><FONT><FONT><FONT
color=#0000ff><FONT><SPAN class=339454321-06092007> </SPAN></FONT>opaque
envelope types and areas;<SPAN
class=339454321-06092007> </SPAN></FONT></FONT></FONT></FONT></FONT></SPAN></FONT></SPAN></DIV>
<DIV><SPAN class=465114720-06092007><FONT size=+0><SPAN
class=394344520-21082007><FONT face=Arial><FONT size=2><FONT><FONT><FONT
color=#0000ff><SPAN
class=339454321-06092007></SPAN></FONT></FONT></FONT></FONT></FONT></SPAN></FONT></SPAN> </DIV>
<DIV><SPAN class=465114720-06092007><FONT size=+0><SPAN
class=394344520-21082007><FONT><FONT face=Arial><FONT size=2><FONT><FONT><FONT
color=#0000ff><SPAN
class=339454321-06092007> </SPAN></FONT></FONT></FONT><SPAN
class=394344520-21082007><SPAN class=465114720-06092007>and:<SPAN
class=339454321-06092007><FONT
color=#0000ff> </FONT></SPAN></SPAN></SPAN></FONT></FONT></FONT></SPAN></FONT></SPAN></DIV>
<DIV><SPAN class=465114720-06092007><FONT size=+0><SPAN
class=394344520-21082007><FONT><FONT face=Arial><FONT size=2><SPAN
class=394344520-21082007><SPAN class=465114720-06092007><SPAN
class=339454321-06092007></SPAN></SPAN></SPAN></FONT></FONT></FONT></SPAN></FONT></SPAN> </DIV>
<DIV><SPAN class=465114720-06092007><FONT size=+0><SPAN
class=394344520-21082007><FONT><FONT face=Arial><FONT size=2><SPAN
class=394344520-21082007><SPAN class=465114720-06092007><SPAN
class=339454321-06092007> </SPAN></SPAN></SPAN></FONT></FONT></FONT><SPAN
class=394344520-21082007><FONT size=2><FONT face=Arial><FONT color=#0000ff>G3.6
<B>Building Envelope. </B>All components of the <EM>building</EM><SPAN
class=339454321-06092007> </SPAN></FONT></FONT></FONT></SPAN></SPAN></FONT></SPAN></DIV>
<DIV><SPAN class=465114720-06092007><FONT size=+0><SPAN
class=394344520-21082007><SPAN class=394344520-21082007><FONT face=Arial><FONT
size=2><FONT><FONT color=#0000ff><SPAN
class=339454321-06092007> </SPAN></FONT></FONT><FONT color=#0000ff>envelope
in the proposed design shall be modeled as shown on<SPAN
class=339454321-06092007> </SPAN></FONT></FONT></FONT></SPAN></SPAN></FONT></SPAN></DIV>
<DIV><SPAN class=465114720-06092007><FONT size=+0><SPAN
class=394344520-21082007><SPAN class=394344520-21082007><FONT face=Arial><FONT
size=2><FONT><FONT color=#0000ff><FONT><SPAN
class=339454321-06092007> </SPAN></FONT>architectural drawings or as built
for existing building envelopes.<SPAN
class=339454321-06092007> </SPAN></FONT></FONT></FONT></FONT></SPAN></SPAN></FONT></SPAN></DIV>
<DIV><SPAN class=465114720-06092007><FONT size=+0><SPAN
class=394344520-21082007><SPAN class=394344520-21082007><FONT face=Arial><FONT
size=2><FONT><FONT color=#0000ff><SPAN
class=339454321-06092007></SPAN></FONT></FONT></FONT></FONT></SPAN></SPAN></FONT></SPAN> </DIV>
<DIV><SPAN class=465114720-06092007><SPAN class=394344520-21082007><SPAN
class=394344520-21082007><FONT><FONT face=Arial><FONT size=2><FONT><FONT
color=#0000ff><SPAN class=339454321-06092007> </SPAN></FONT></FONT><SPAN
class=465114720-06092007>This <EM>still</EM> is not enough to accurately define
the proposed design. I am sure that you<SPAN class=392393821-06092007><FONT
color=#0000ff> <FONT color=#000000>might</FONT> </FONT></SPAN>all
agree with me on the interpretation of Appendix G, but does anyone know where I
can find a solid definition of what the <EM>proposed design</EM> is? I have
searched the CIRs on the USGBC website and came up empty handed and don't know
where else to go. ASHRAE said a formal interpretation request could take upwards
of 6 months, so that is also out of the question<FONT color=#0000ff><SPAN
class=339454321-06092007> . </SPAN><SPAN
class=339454321-06092007> </SPAN></FONT></SPAN></FONT></FONT></FONT></SPAN></SPAN></SPAN></DIV>
<DIV><SPAN class=465114720-06092007><FONT size=+0><SPAN
class=394344520-21082007><SPAN class=394344520-21082007><FONT face=Arial><FONT
size=2><FONT><SPAN class=465114720-06092007><SPAN
class=339454321-06092007></SPAN></SPAN></FONT></FONT></FONT></SPAN></SPAN></FONT></SPAN> </DIV>
<DIV><SPAN class=465114720-06092007><FONT size=+0><SPAN
class=394344520-21082007><SPAN class=394344520-21082007><FONT face=Arial><FONT
size=2><FONT><FONT><SPAN class=465114720-06092007><SPAN
class=339454321-06092007> </SPAN></SPAN></FONT><SPAN
class=465114720-06092007>Any help would be greatly appreciated. <SPAN
class=339454321-06092007><FONT
color=#0000ff> </FONT></SPAN></SPAN></FONT></FONT></FONT></SPAN></SPAN></FONT></SPAN></DIV>
<DIV><SPAN class=465114720-06092007><FONT size=+0><SPAN
class=394344520-21082007><SPAN class=394344520-21082007><FONT face=Arial><FONT
size=2><FONT><SPAN class=465114720-06092007><SPAN
class=339454321-06092007></SPAN></SPAN></FONT></FONT></FONT></SPAN></SPAN></FONT></SPAN> </DIV>
<DIV><SPAN class=465114720-06092007><FONT size=+0><SPAN
class=394344520-21082007><SPAN class=394344520-21082007><FONT face=Arial><FONT
size=2><FONT><FONT><SPAN class=465114720-06092007><SPAN
class=339454321-06092007> </SPAN></SPAN></FONT><SPAN
class=465114720-06092007>Thanks,<SPAN class=339454321-06092007><FONT
color=#0000ff> </FONT></SPAN></SPAN></FONT></FONT></FONT></SPAN></SPAN></FONT></SPAN></DIV>
<DIV><SPAN class=465114720-06092007><FONT size=+0><SPAN
class=394344520-21082007><SPAN class=394344520-21082007><FONT face=Arial><FONT
size=2><FONT><SPAN class=465114720-06092007><SPAN
class=339454321-06092007> </SPAN></SPAN></FONT><SPAN
class=465114720-06092007>Dana
Troy</SPAN></FONT></FONT></SPAN></SPAN></DIV></FONT></SPAN><PRE>
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