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<div class=Section1>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>One issue with Green Roofs that has come
up, is analyzing potential energy savings benefits from evaporation, and plant
evapo-transpiration.  There is at least one program out there that
apparently addresses this.  <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'><span style='mso-list:Ignore'>1)<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>       </span></font></span></span></font><![endif]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Are there opinions on whether these effects generate credible
supportable energy savings from typical green roof installations?<o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.25in'><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'><span style='mso-list:Ignore'>2)<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>       </span></font></span></span></font><![endif]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Does anyone know of a standard methodology that could be
incorporated in a broad energy simulation such as eQuest?<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'><span style='mso-list:Ignore'>3)<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>       </span></font></span></span></font><![endif]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Has anyone received approval from USGBC or a utility incentive
program to claim energy savings from these effects, and if so what kind of documentation
was used? <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks—Brian Thornton<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<div>

<p class=MsoAutoSig><st1:place w:st="on"><st1:City w:st="on"><font size=2
  color=navy face=Arial><span style='font-size:11.0pt;font-family:Arial;
  color:navy'>Thornton</span></font></st1:City></st1:place><font size=2
color=navy face=Arial><span style='font-size:11.0pt;font-family:Arial;
color:navy'> Energy Consulting<o:p></o:p></span></font></p>

<p class=MsoAutoSig><font size=2 color=navy face=Arial><span style='font-size:
11.0pt;font-family:Arial;color:navy'>p. 503-231-6600 f. 503-231-3555<o:p></o:p></span></font></p>

<p class=MsoAutoSig><font size=2 color=navy face=Arial><span style='font-size:
11.0pt;font-family:Arial;color:navy'>thorntonenergy@comcast.net<o:p></o:p></span></font></p>

</div>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<div>

<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>

<hr size=2 width="100%" align=center tabindex=-1>

</span></font></div>

<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> postman@gard.com
[mailto:postman@gard.com] <b><span style='font-weight:bold'>On Behalf Of </span></b>Nikhil
Kapur<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, February 22, 2005
2:40 PM<br>
<b><span style='font-weight:bold'>To:</span></b> BLDG-SIM@GARD.COM<br>
<b><span style='font-weight:bold'>Subject:</span></b> [BLDG-SIM] Green Roofs</span></font><o:p></o:p></p>

</div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>

<div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Hi  Dan,<o:p></o:p></span></font></p>

</div>

<div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>

</div>

<div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>You can use a reflectance of 0.70 or greater i.e. absorptance of 0.3 or
less for the roof. Also the effect of the U-value of the roof construction will
change so you will have to set a multiplier for the u-vlaue of the roof. This
can be referenced in the ASHRAE 90.1 - 1999 Users manual in the Building
Envelope section - page 5-20 table 5-E which gives the Roof U-factor
multipliers for the various climate zones.<o:p></o:p></span></font></p>

</div>

<div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>

</div>

<div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Regards,<o:p></o:p></span></font></p>

</div>

<div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>

</div>

<div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Nikhil<o:p></o:p></span></font></p>

</div>

<div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><br>
<br>
<br>
<b><i><span style='font-weight:bold;font-style:italic'>Dan Sobrinski
<sobrinski@econergy.net></span></i></b> wrote:<o:p></o:p></span></font></p>

</div>

<blockquote style='border:none;border-left:solid #1010FF 1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-bottom:5.0pt'>

<div>

<div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Hi,<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I am looking for some advice on modeling a green roof in
Equest.  Specifically, what should I set Surface Roughness and
Ext. Color (absort) too?  Are there any other parameters that
need to be modified to simulate a vegetated roofing system?<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Thanks in advance <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face="Times New Roman"><span style='font-size:
10.0pt'>Dan Sobrinski, <u1:stockticker>CEM</u1:stockticker>, LEED AP <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face="Times New Roman"><span style='font-size:
10.0pt'>Associate Engineer<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face="Times New Roman"><span style='font-size:
10.0pt'>Econergy International Corporation<o:p></o:p></span></font></p>

<p class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><font size=2
  face="Times New Roman"><u1:Street><u1:address><span style='font-size:10.0pt'>3825
  Iris Avenue, Suite 350</span></u1:address></u1:Street></font></st1:address></st1:Street><font
size=2><span style='font-size:10.0pt'><o:p></o:p></span></font></p>

<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=2
  face="Times New Roman"><u1:place><u1:City><span style='font-size:10.0pt'>Boulder</span></u1:City></font></st1:City><font
 size=2><span style='font-size:10.0pt'></u1:place>, <u1:State><st1:State w:st="on">CO</u1:State></st1:State> 
 <u1:PostalCode><st1:PostalCode w:st="on">80301</st1:PostalCode></span></u1:PostalCode></u1:place></font></st1:place><font
size=2><span style='font-size:10.0pt'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face="Times New Roman"><u1:phone o_x003a_ls="trans" phonenumber="$6473$$$"><span
style='font-size:10.0pt'>303-473-9007</u1:phone>  voice<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face="Times New Roman"><u1:phone o_x003a_ls="trans" phonenumber="$6473$$$"><span
style='font-size:10.0pt'>303-473-9060</u1:phone>  fax<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face="Times New Roman"><span style='font-size:
10.0pt'>sobrinski@econergy.net<o:p></o:p></span></font></p>

</div>

</div>

</blockquote>

<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>

<hr size=1 width="100%" align=center>

</span></font></div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Do you Yahoo!?<br>
Yahoo! Search presents - <a
href="http://us.rd.yahoo.com/evt=30648/*http:/movies.yahoo.com/movies/feature/jibjabinaugural.html">Jib
Jab's 'Second Term'</a><o:p></o:p></span></font></p>

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