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<p class=MsoNormal>Hi All,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Why we are all talking about glazing properties, I wanted to
see if anyone had used the new Version of Windows 6 to calculated the glazing
properties of fritted glass. My main question is do we need to get the manufacture
to test the glass with 100% frit on it and then use these properties for the “glass
substrate”. And where does the glazing properties come from for the specular
and diffuse optical data.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>My first guess was that the glass substrate was the glass layer
you were applying the frit to without any properties changed with the use of
frit and that the optical data came from the manufacturer when the glass was
measured with 100% frit.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>The following is the information on modeling frit from the
Windows 6 manual.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#7F7F7F'>The properties
of the fritted glass must be measured in a spectrophotometer, with 100% frit
coverage on a substrate. The substrate used to measure the frit is specified
when defining the fritted glass in WINDOW in the Shading Layer Library. The
percentage of frit coverage is input, and WINDOW will calculate the optical
properties of the frit percentage specified<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#7F7F7F'><o:p> </o:p></span></p>
<p class=MsoNormal><i><span style='font-size:10.0pt;color:#7F7F7F'>Glass
Substrate: </span></i><span style='font-size:10.0pt;color:#7F7F7F'>This
pulldown list shows all the records in the Glass Library. Select the glass
layer that was used as the substrate when the frit was measured. This substrate
should not be changed from the measured substrate – if it is, the
calculated results from WINDOW will not be valid.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#7F7F7F'><o:p> </o:p></span></p>
<p class=MsoNormal><i><span style='font-size:10.0pt;color:#7F7F7F'>Frit
Coverage: </span></i><span style='font-size:10.0pt;color:#7F7F7F'>The percent
of the substrate that is covered in the frit. The original measurement to
obtain the optical properties of the frit is based on 100% frit coverage, and
with that information, WINDOW can recalculate the optical properties of the
frit at any frit coverage specified.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#7F7F7F'><o:p> </o:p></span></p>
<p class=Default><i><span style='font-size:10.0pt;color:#7F7F7F'>Specular </span></i><span
style='font-size:10.0pt;color:#7F7F7F'>Reference to the layer in the <b>Glass
Library </b>that represents the specular measurement of the glass <o:p></o:p></span></p>
<p class=MsoNormal><i><span style='font-size:10.0pt;color:#7F7F7F'>Diffuse </span></i><span
style='font-size:10.0pt;color:#7F7F7F'>Reference to the layer in the <b>Glass
Library </b>that represents the diffuse measurment of the glass.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><img width=607 height=660 id="_x0000_i1026"
src="cid:image003.png@01CB24E6.F25780D0"><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><img width=591 height=170 id="Picture_x0020_1"
src="cid:image001.png@01CB24E5.20883820"
alt="Christie Rimes,
Building Simulation Analyst
WSP Flack + Kurtz
405 Howard Street, Suite 500
San Francisco, CA 94105
Direct: 415.402.2727
Main Tel: 415.398.3833
Fax: 415.433.5311
website: http://www.wspfk.com
vCard: http://vcards.wspfk.com/vcardloader.php?filename=flackkurtz-christie-rimes-wspfk-com-1255981339.vcf
image: "><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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