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<div class=Section1>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>IES has representation in <st1:City w:st="on">San
 Francisco</st1:City> and <st1:place w:st="on"><st1:City w:st="on">Boston</st1:City></st1:place>.
 <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'><a
href="http://www.iesve.com/About-us/Locations">http://www.iesve.com/About-us/Locations</a><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'><o:p> </o:p></span></font></p>

<div>

<p class=MsoNormal><b><font size=3 color="#0047b8" face=Calibri><span
style='font-size:12.0pt;font-family:Calibri;color:#0047B8;font-weight:bold'>TIM
REYNOLDS, P.E., LEED AP<o:p></o:p></span></font></b></p>

<p class=MsoNormal><font size=2 color="#0047b8" face=Calibri><span
style='font-size:10.0pt;font-family:Calibri;color:#0047B8'>Associate Principal<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 color="#183962" face=Calibri><span
style='font-size:7.0pt;font-family:Calibri;color:#183962'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#183962" face=Calibri><span
style='font-size:10.0pt;font-family:Calibri;color:#183962'><img border=0
width=166 height=75 id="Picture_x0020_1"
src="cid:image001.jpg@01CA40EC.DDEBFB50"
alt="cid:image001.gif@01C77ACA.9DDDF4E0"></span></font><font size=2
color="#0c45a0" face=Calibri><span style='font-size:10.0pt;font-family:Calibri;
color:#0C45A0'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 color="#0c45a0" face=Calibri><span
style='font-size:7.0pt;font-family:Calibri;color:#0C45A0'><o:p> </o:p></span></font></p>

<p class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><font size=2
  color="#0047b8" face=Calibri><span style='font-size:10.0pt;font-family:Calibri;
  color:#0047B8'>600 108th Ave NE Suite 600</span></font></st1:address></st1:Street><font
size=2 color="#0047b8" face=Calibri><span style='font-size:10.0pt;font-family:
Calibri;color:#0047B8'> | <st1:place w:st="on"><st1:City w:st="on">Bellevue</st1:City>,
 <st1:State w:st="on">WA</st1:State> <st1:PostalCode w:st="on">98004</st1:PostalCode></st1:place><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#0047b8" face=Calibri><span
style='font-size:10.0pt;font-family:Calibri;color:#0047B8'>T  425 564 8400
</span></font><font size=2 color=purple face=Calibri><span style='font-size:
10.0pt;font-family:Calibri;color:purple'>Ext 8431</span></font><font size=2
color="#0047b8" face=Calibri><span style='font-size:10.0pt;font-family:Calibri;
color:#0047B8'> | C 206 422 2547 | F 425 564 8517<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'><a
href="mailto:tim.reynolds@cbengineers.com"><font size=2 color=black
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size=2 color="#0047b8" face=Calibri><span style='font-size:10.0pt;font-family:
Calibri;color:#0047B8'> | </span></font><font color=navy><span
style='color:navy'><a href="http://www.cbengineers.com/"><font size=2
color=black face=Calibri><span style='font-size:10.0pt;font-family:Calibri;
color:black'>cbengineers.com</span></font></a></span></font><font size=2
color="#0047b8" face=Calibri><span style='font-size:10.0pt;font-family:Calibri;
color:#0047B8'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 color="#0c45a0" face=Calibri><span
style='font-size:8.0pt;font-family:Calibri;color:#0C45A0'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=1 color="#0d0d0d" face=Calibri><span
style='font-size:7.5pt;font-family:Calibri;color:#0D0D0D'>The email message you
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may be privileged or confidential. It is STRICTLY PROHIBITED for anyone else to
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return e-mail message and delete the original and all copies of the
communication, along with any attachments from your system.<o:p></o:p></span></font></p>

<p class=MsoNormal><i><font size=5 color=green face=Webdings><span lang=EN-GB
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font-style:italic'> </span></font></i><b><i><font size=1 color=green
face=Calibri><span lang=EN-GB style='font-size:9.0pt;font-family:Calibri;
color:green;font-weight:bold;font-style:italic'>Please consider the environment
before printing this email.</span></font></i></b><font size=2 color=navy><span
style='font-size:11.0pt;color:navy'><o:p></o:p></span></font></p>

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<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>

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face="Times New Roman"><span style='font-size:12.0pt'>

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<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'>
virtual-sim-bounces@lists.onebuilding.org
[mailto:virtual-sim-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Paul Carey<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, September 29, 2009
1:52 AM<br>
<b><span style='font-weight:bold'>To:</span></b> 'Nick Caton'; 'Erik Eriksson'<br>
<b><span style='font-weight:bold'>Cc:</span></b> <st1:PersonName w:st="on">virtual-sim@lists.onebuilding.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Virtual-sim] Low
DF-values with Radiance</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>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-GB
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Erik/Nick<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-GB
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-GB
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>I’d agree on
the glazing spec thing don’t go putting in very clear glass unless you
are very sure that it’s going to have those sorts of properties.  A
check of the G value should help give you a guide to light transmittance. 
Or just check out the Pilkington website or similar to give you a good idea,
their selection tool (think it’s called spectrum or something, a while
since I’ve used it) is quite good for getting some ideas of what it will
be like.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-GB
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-GB
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>In terms of the
daylight studies, they should always be carried out using the IEE overcast sky
to assess daylight factors.  If you want to check out glare etc obviously
use a different sky, but for DF calculations the overcast sky should be
used.  The default positions of everything else in IES should be ok once
you’ve set that up as it will work out the working plane levels based on
that sky. <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-GB
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-GB
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Nick, you should be
able to download IES for a trial from their website normally.  Just email
in a request for keys and they should set you up with a trial.  If you
haven’t checked out DesignBuilder you might want to do that too (30 day
trial available from their website).  Quite similar tool (front end
slightly more sketchup like than IES), but uses energyplus instead.  Doesn’t
have the radiance link yet, but we keep pestering the guys there to get that
link in.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-GB
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-GB
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Regards<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-GB
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Paul<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-GB
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-GB
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-GB
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-GB
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-GB
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>

<div>

<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>

<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'> Nick Caton
[mailto:ncaton@smithboucher.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> 28 September 2009 16:29<br>
<b><span style='font-weight:bold'>To:</span></b> Erik Eriksson; Paul Carey<br>
<b><span style='font-weight:bold'>Cc:</span></b> <st1:PersonName w:st="on">virtual-sim@lists.onebuilding.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [Virtual-sim] Low
DF-values with Radiance<o:p></o:p></span></font></p>

</div>

</div>

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

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Hi Erik,<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>I’m not
familiar with the limitations/capabilities of the IES Radiance tool (still
looking for a vendor in the <st1:country-region w:st="on"><st1:place w:st="on">US</st1:place></st1:country-region>
that can send me some kind of trial), but I may be able to offer some
suggestions based on my limited daylight modeling experience:<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>

<p class=msolistparagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><font
size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:
Calibri;color:#1F497D'><span style='mso-list:Ignore'>-<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="#1f497d"
face=Calibri><span style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>To
clarify, is it 12% of your <u>wall</u> area that is windows?<o:p></o:p></span></font></p>

<p class=msolistparagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><font
size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:
Calibri;color:#1F497D'><span style='mso-list:Ignore'>-<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="#1f497d"
face=Calibri><span style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Again,
not sure of the IES Radiance’s operation, but when you say
‘white’ floors/ceiling and ‘gray’ floors, what
reflectances are being modeled (i.e. 20/50/80%?)<o:p></o:p></span></font></p>

<p class=msolistparagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><font
size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:
Calibri;color:#1F497D'><span style='mso-list:Ignore'>-<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="#1f497d"
face=Calibri><span style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Consider
the hour/month being modeled, along with the orientation and location on the
globe.  Perhaps you’re modeling an instant in time where there is
little-to-no direct sunlight on your glazing?  <o:p></o:p></span></font></p>

<p class=msolistparagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><font
size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:
Calibri;color:#1F497D'><span style='mso-list:Ignore'>-<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="#1f497d"
face=Calibri><span style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>I
am also approaching learning daylight modeling from an energy-modeler’s
perspective:  For daylight studies, I try to give myself an idea of what <u>should</u>
be going on first before “crunching the numbers” by building a
simple model in Google Sketchup, located/oriented on the globe, and playing
with the simplified daylighting tools to see how the sun strikes the building
through the year.  With practice I’m sure this will become more
intuitive, but until then I’ve learned not to rely on my intuitions!<o:p></o:p></span></font></p>

<p class=msolistparagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><font
size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:
Calibri;color:#1F497D'><span style='mso-list:Ignore'>-<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="#1f497d"
face=Calibri><span style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>A
general heads-up that won’t solve your immediate concern:  a visible
transmittance (what IES Radiance calls “transparency” may be
something else) of 0.9 is not unheard of, but pretty high for exterior envelope
glazing… when I do daylighting/rendering studies I usually go no higher
than 0.8 or so unless I have actual product specs in hand.<o:p></o:p></span></font></p>

<p class=msolistparagraph><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>~Nick<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><img border=0
width=119 height=37 id="Picture_x005f_x0020_1"
src="cid:image002.jpg@01CA40EC.DDEBFB50" alt="cid:489575314@22072009-0ABB"></span></font><b><font
size=2 color="#2d4d5e" face="Stylus BT"><span style='font-size:11.0pt;
font-family:"Stylus BT";color:#2D4D5E;font-weight:bold'><o:p></o:p></span></font></b></p>

<p class=MsoNormal><b><font size=2 color="#2d4d5e" face="Stylus BT"><span
style='font-size:11.0pt;font-family:"Stylus BT";color:#2D4D5E;font-weight:bold'><o:p> </o:p></span></font></b></p>

<p class=MsoNormal><b><font size=2 color="#2d4d5e" face="Stylus BT"><span
style='font-size:11.0pt;font-family:"Stylus BT";color:#2D4D5E;font-weight:bold'>NICK
CATON, E.I.T.</span></font></b><b><font color="#2d4d5e" face="Stylus BT"><span
style='font-family:"Stylus BT";color:#2D4D5E;font-weight:bold'><o:p></o:p></span></font></b></p>

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style='font-size:10.0pt;font-family:Calibri;color:#2D4D5E'>25501 west valley
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<p class=MsoNormal><font size=2 color="#2d4d5e" face=Calibri><span
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<p class=MsoNormal><font size=2 color="#2d4d5e" face=Calibri><span
style='font-size:10.0pt;font-family:Calibri;color:#2D4D5E'>fax 913 345.0617<o:p></o:p></span></font></p>

<p class=MsoNormal><i><font size=2 color="#2d4d5e" face=Calibri><span
style='font-size:10.0pt;font-family:Calibri;color:#2D4D5E;font-style:italic'>Check
out our new web-site @ </span></font></i><font size=2 color="#1f497d"
face=Calibri><span style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><a
href="www.smithboucher.com" title="blocked::www.smithboucher.com"><font size=2><span
style='font-size:10.0pt'>www.smithboucher.com</span></font></a></span></font><u><font
size=2 color=blue face=Calibri><span style='font-size:10.0pt;font-family:Calibri;
color:blue'> </span></font></u><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>

<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>

<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'>
virtual-sim-bounces@lists.onebuilding.org
[mailto:virtual-sim-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Erik Eriksson<br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, September 28, 2009
10:10 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Paul Carey<br>
<b><span style='font-weight:bold'>Cc:</span></b> <st1:PersonName w:st="on">virtual-sim@lists.onebuilding.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Virtual-sim] Low
DF-values with Radiance<o:p></o:p></span></font></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>

<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
</span></font><font size=2 face=Arial><span style='font-size:10.0pt;font-family:
Arial'>Hey,</span></font> <br>
<br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Yeah,
I've tried that. With more or less the same result.<br>
I'm quite new to this with lighting calculations. I'm more used to energy
performance. </span></font><br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>So I
cant really say if the values are correct or not.</span></font> <br>
<br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Best
regards</span></font> <br>
<br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>E r i
k   E r i k s s o n <br>
<br>
Energy specialist and project manager<br>
________________________________<br>
White project & environmental management<br>
<br>
<st1:address w:st="on"><st1:Street w:st="on">Box</st1:Street> 4700</st1:address><br>
116 92 <st1:City w:st="on"><st1:place w:st="on">STOCKHOLM</st1:place></st1:City><br>
Phone: +46(0)8-402 26 77<br>
Fax:      +46 (0)8-402 25 10<br>
Visit:     Östgötagatan 100<br>
</span></font><a href="http://www.white.se/"><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>http://www.white.se</span></font></a><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><br>
<br>
We are certified according to ISO 9000 and 14 001</span></font> <o:p></o:p></p>

<table class=MsoNormalTable border=0 cellpadding=0 width="100%"
 style='width:100.0%'>
 <tr>
  <td valign=top style='padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><font size=1 color="#5f5f5f" face=Arial><span
  style='font-size:7.5pt;font-family:Arial;color:#5F5F5F'>From:</span></font> <o:p></o:p></p>
  </td>
  <td valign=top style='padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><font size=1 face=Arial><span style='font-size:7.5pt;
  font-family:Arial'>Paul Carey <paul@zed-uk.com></span></font> <o:p></o:p></p>
  </td>
 </tr>
 <tr>
  <td valign=top style='padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><font size=1 color="#5f5f5f" face=Arial><span
  style='font-size:7.5pt;font-family:Arial;color:#5F5F5F'>To:</span></font> <o:p></o:p></p>
  </td>
  <td valign=top style='padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><font size=1 face=Arial><span style='font-size:7.5pt;
  font-family:Arial'>Erik Eriksson <erik.eriksson@white.se></span></font>
  <o:p></o:p></p>
  </td>
 </tr>
 <tr>
  <td valign=top style='padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><font size=1 color="#5f5f5f" face=Arial><span
  style='font-size:7.5pt;font-family:Arial;color:#5F5F5F'>Cc:</span></font> <o:p></o:p></p>
  </td>
  <td style='padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><font size=1 face=Arial><span style='font-size:7.5pt;
  font-family:Arial'>"<st1:PersonName w:st="on">virtual-sim@lists.onebuilding.org</st1:PersonName>"
  <<st1:PersonName w:st="on">virtual-sim@lists.onebuilding.org</st1:PersonName>></span></font>
  <o:p></o:p></p>
  </td>
 </tr>
 <tr>
  <td valign=top style='padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><font size=1 color="#5f5f5f" face=Arial><span
  style='font-size:7.5pt;font-family:Arial;color:#5F5F5F'>Date:</span></font> <o:p></o:p></p>
  </td>
  <td valign=top style='padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><font size=1 face=Arial><span style='font-size:7.5pt;
  font-family:Arial'>2009-09-28 17:06</span></font> <o:p></o:p></p>
  </td>
 </tr>
 <tr>
  <td valign=top style='padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><font size=1 color="#5f5f5f" face=Arial><span
  style='font-size:7.5pt;font-family:Arial;color:#5F5F5F'>Subject:</span></font>
  <o:p></o:p></p>
  </td>
  <td valign=top style='padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><font size=1 face=Arial><span style='font-size:7.5pt;
  font-family:Arial'>Re: [Virtual-sim] Low DF-values with Radiance</span></font><o:p></o:p></p>
  </td>
 </tr>
</table>

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

<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%" noshade color="#973de0" align=center>

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

<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
<br>
<br>
Erik <br>
<br>
Try carrying out a model for one room at a time. The results tend to be quite
different. <br>
<br>
Cheers <br>
Paul <br>
<br>
<br>
<br>
Sent from my iPhone <br>
<br>
On 28 Sep 2009, at 15:55, Erik Eriksson <<a
href="mailto:erik.eriksson@white.se">erik.eriksson@white.se</a>> wrote:<br>
<br>
</span></font><font size=2 face=Arial><span style='font-size:10.0pt;font-family:
Arial'><br>
Hi all,</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><br>
I'm doing some daylighting studies with RadianceIES with a model I've imported
from revit. The model seems to have been imported just fine.</span></font> <font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><br>
However I'm getting very low DF-values.</span></font> <font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><br>
The rooms I've been studying are rectangular cellular offices with about 12% of
the floor area consisting of windows.</span></font> <font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><br>
The results show that approx 5-10% the area of a working plane at 0,8 m above
the floor has a DF-value of 1.2 %.</span></font> <font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><br>
This feels like a very low number. The window transparancy is 0,9 and all the
walls are white colored. The ceiling is white and the floor is gray.</span></font>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><br>
<br>
Does anyone have a suggestion as to what might be wrong or if these values seem
ok.</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><br>
Thanks in advance</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><br>
Best regards</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><br>
E r i k   E r i k s s o n <br>
<br>
Energy specialist and project manager<br>
________________________________<br>
White project & environmental management<br>
<br>
<st1:address w:st="on"><st1:Street w:st="on">Box</st1:Street> 4700</st1:address><br>
116 92 <st1:City w:st="on"><st1:place w:st="on">STOCKHOLM</st1:place></st1:City><br>
Phone: +46(0)8-402 26 77<br>
Fax:      +46 (0)8-402 25 10<br>
Visit:     Östgötagatan 100</span></font><u><font color=blue><span
style='color:blue'><br>
</span></font></u><a href="http://www.white.se/"><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>http://www.white.se</span></font></a><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><br>
<br>
We are certified according to ISO 9000 and 14 001</span></font> <br>
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