<h3 style="font-family: courier new,monospace; font-weight: normal;"><font size="2">Well, this is what the whole introductory page says on the LBNL website: <a href="http://windows.lbl.gov/software/window/window.html">http://windows.lbl.gov/software/window/window.html</a>.</font></h3>
I'd like to hear what some of the glass guys say about this. Alexx? Anyone else?<br><br><h3><br></h3><h3><font face="arial, helvetica, sans-serif" size="6">WINDOW</font></h3>
<table border="0" cellpadding="3" width="99%">
<tbody><tr>
<td bgcolor="#A9CDFA" width="50%">
<font face="arial, helvetica, sans-serif" size="2"><strong>WINDOW 6.3</strong><strong style="font-weight: 400"><br>
(For NFRC Certification and modeling Complex Glazing Systems)</strong></font></td>
<td bgcolor="#A9CDFA" width="50%">
<font face="arial, helvetica, sans-serif" size="2">
<strong style="font-weight: 400">WINDOW 5.2<br>
(older version)</strong></font></td>
</tr>
<tr>
<td bgcolor="#A9CDFA" width="50%">
<strong>
<font face="arial, helvetica, sans-serif" size="2">
<a href="http://windows.lbl.gov/software/window/6/index.html">Download
WINDOW 6.3</a></font></strong><br>
<font face="Arial" size="2">(for NFRC Certification and complex glazing systems)</font></td>
<td bgcolor="#A9CDFA" width="50%">
<font face="arial, helvetica, sans-serif" size="2">
<strong style="font-weight: 400">
<a href="http://windows.lbl.gov/software/window/52/window52_download.asp" style="text-decoration: none">Download
5.2 (older version)</a> <br>
</strong>(Contains WINDOW 5.2.17a (bug fixes for DOE2 and
EnergyPlus Files) and Version 17.1 of the International Glazing Database)</font>
</td>
</tr>
<tr>
<td bgcolor="#A9CDFA" width="50%"><font face="arial, helvetica, sans-serif" size="2"><strong>
<a href="http://windows.lbl.gov/software/window/6/W63_faq.html">Knowledge
Base</a></strong></font><br>
<font face="Arial" size="2">(</font><font color="#FF0000" face="Arial" size="2">Check
here first </font><font face="Arial" size="2">if you are experiencing a
problem with the software)</font></td>
<td bgcolor="#A9CDFA" width="50%"><font face="arial, helvetica, sans-serif" size="2">
<strong style="font-weight: 400">
<a href="http://windows.lbl.gov/software/window/52/W52_faq.html">Knowledge
Base</a></strong></font><br>
<font face="Arial" size="2">(<font color="#FF0000">Check here first</font>
if you are experiencing a problem with the software)</font></td>
</tr>
<tr>
<td bgcolor="#A9CDFA" width="50%"><b><span lang="en-us"><font face="Arial" size="2">
<a href="http://windows.lbl.gov/software/window/6/w6_features.html">New Features</a></font></span></b></td>
<td bgcolor="#A9CDFA" width="50%"><span lang="en-us"><font face="Arial" size="2">
<a href="http://windows.lbl.gov/software/window/52/W52_feat.html">New Features</a></font></span></td>
</tr>
<tr>
<td bgcolor="#A9CDFA" width="50%"><strong><font face="arial, helvetica, sans-serif" size="2">
<a href="http://windows.lbl.gov/software/window/6/w6_docs.htm">Documentation</a></font></strong><br>
<font face="Arial" size="2">(includes documentation for both <br>
WINDOW 4.1 and 5)</font></td>
<td bgcolor="#A9CDFA" width="50%">
<strong style="font-weight: 400"><font face="arial, helvetica, sans-serif" size="2"><a href="http://windows.lbl.gov/software/window/window_docs.htm">Documentation</a></font></strong><br>
<font face="Arial" size="2">(includes documentation for both <br>
WINDOW 4.1 and 5)</font></td>
</tr>
<tr>
<td bgcolor="#A9CDFA" width="50%">
<strong><font face="arial, helvetica, sans-serif" size="2">
<a href="http://windows.lbl.gov/software/window/FAQ/GlassLibUpdate.html">Window
Glass Library Update</a></font></strong>
</td>
<td bgcolor="#A9CDFA" width="50%">
<strong style="font-weight: 400">
<font face="arial, helvetica, sans-serif" size="2">
<a href="http://windows.lbl.gov/software/window/FAQ/GlassLibUpdate.html">Window
Glass Library Update</a></font></strong>
</td>
</tr>
<tr>
<td bgcolor="#A9CDFA" width="50%"><font face="arial, helvetica, sans-serif" size="2"><strong>
<a href="http://windows.lbl.gov/software/window/window_sysreqs.htm">System
Requirements</a></strong></font></td>
<td bgcolor="#A9CDFA" width="50%"><font face="arial, helvetica, sans-serif" size="2">
<strong style="font-weight: 400"><a href="http://windows.lbl.gov/software/window/window_sysreqs.htm">System
Requirements</a></strong></font></td>
</tr>
</tbody></table>
<p><font face="Arial" size="3">WINDOW 6.3 is a publicly available computer
program for calculating total window thermal performance indices (i.e.
U-values, solar heat gain coefficients, shading coefficients, and visible
transmittances). WINDOW 6.3 provides a versatile heat transfer analysis method consistent with the
updated rating
procedure developed by the National Fenestration Rating Council (NFRC) that
is consistent with the ISO 15099 standard. The program can be
used to design and develop new products, to assist educators in teaching heat transfer
through windows, and to help public officials in developing building energy
codes. </font></p>
<p class="MsoBodyText"><b>
<font color="#000080" face="Arial, Helvetica, sans-serif">Program
Updates</font></b></p>
<p class="MsoBodyText"><font face="Arial, Helvetica, sans-serif">The main
change from WINDOW 5 to WINDOW 6 is the ability to model complex glazing
systems, such as venetian blinds and roller shades. In addition, many bugs
have been fixed.</font></p>
<p class="MsoBodyText"><b>
<font color="#000080" face="Arial, Helvetica, sans-serif">Program Features</font></b></p>
<p class="MsoBodyText"><font face="Arial" size="3">WINDOW<span lang="en-us">
6.3</span> includes all
of the WINDOW 5.2 capabilities such as:</font></p>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tbody><tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/software/window/WB01496_1.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%">
<p class="MsoList" style="mso-list: l12 level1 lfo80; margin-left: .15in"><font face="Arial" size="3"><span style="layout-grid-mode:line">a
state of the art Microsoft Windows<sup>TM</sup> interface</span></font></p></td>
</tr>
</tbody></table>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tbody><tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/software/window/WB01496_1.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%">
<p class="MsoList" style="mso-list: l12 level1 lfo80; margin-left: .15in"><font face="Arial" size="3"><span style="layout-grid-mode:line">updated
algorithms for the calculation of total fenestration product
U-values and Solar Heat Gain Coefficient consistent with ASHRAE
SPC142, ISO15099, and the National Fenestration Rating Council</span></font></p></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/software/window/WB01496_1.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%">
<p class="MsoList" style="mso-list: l12 level1 lfo80; margin-left: .15in"><font face="Arial" size="3"><span style="layout-grid-mode:line">a
Condensation Resistance Index in accordance with the NFRC 500
Standard
</span></font></p></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/software/window/WB01496_1.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%">
<p class="MsoList" style="mso-list: l12 level1 lfo80; margin-left: .15in"><font face="Arial" size="3"><span style="layout-grid-mode:line">a
surface temperature map
</span></font></p></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/software/window/WB01496_1.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%">
<p class="MsoList" style="mso-list: l12 level1 lfo80; margin-left: .15in"><font face="Arial" size="3"><span style="layout-grid-mode:line">an
integrated database of properties
</span></font></p></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/software/window/WB01496_1.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%">
<p class="MsoList" style="mso-list: l12 level1 lfo80; margin-left: .15in"><font face="Arial" size="3"><span style="layout-grid-mode:line">links
to other LBNL window analysis software:
</span></font></p></td>
</tr>
</tbody></table>
<blockquote>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tbody><tr>
<td valign="top" width="42">
<img src="http://windows.lbl.gov/software/window/Bullet_small.gif" alt="bullet" height="7" hspace="17" width="7"></td>
<td valign="top" width="100%">
<p class="MsoList" style="mso-list: l12 level1 lfo80; margin-left: .15in"><font face="Arial" size="3"><span style="layout-grid-mode:line">THERM
6, for calculating 2-D frame and edge effects
</span></font></p></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/software/window/Bullet_small.gif" alt="bullet" height="7" hspace="17" width="7"></td>
<td valign="top" width="100%">
<p class="MsoList" style="mso-list: l12 level1 lfo80; margin-left: .15in"><font face="Arial" size="3"><span style="layout-grid-mode:line">RESFEN,
for calculating the energy effects of windows in typical houses
throughout the United States
</span></font></p></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/software/window/Bullet_small.gif" alt="bullet" height="7" hspace="17" width="7"></td>
<td valign="top" width="100%">
<p class="MsoList" style="mso-list: l12 level1 lfo80; margin-left: .15in"><span style="layout-grid-mode:line"><font face="Arial" size="3">Optics5
for the optical properties of all coated and uncoated glazings,
laminates, and applied films.</font>
</span></p></td>
</tr>
</tbody></table>
</blockquote>
<h4><font color="#000080" face="Arial, Helvetica, sans-serif">Program Capabilities</font></h4>
<p><font face="Arial" size="3">WINDOW 6.3 offers the following features: </font></p>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tbody><tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">The ability to analyze products made from any
combination of glazing layers, gas layers, frames, spacers, and
dividers under any environmental conditions and at any tilt;<br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial">The ability to
model complex glazing systems such as venetian blinds and roller
shades.</font><font face="Arial" size="3"><br><br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">Directly accessible libraries of window system components, (glazing
systems, glazing layers, gas fills, frame and divider elements), and environmental
conditions; <br>
<br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">The choice of working in English (IP), or Systeme International (SI)
units; <br>
<br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">Help Screens and a manual; <br>
<br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">A print feature which generates detailed results for a window,
window component, or library; <br>
<br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">The ability to specify the dimensions and thermal properties of each
frame element (header, sills, jamb, mullion) in a window; <br>
<br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">A multi-band (wavelength-by-wavelength) spectral model;<br>
<br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">A Glass Library which can access spectral data files for many common
glazing materials from the Optics5 database; <br>
<br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">A night-sky radiative model; <br>
<br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">A link with the DOE-2.1E and EnergyPlus building energy analysis program. </font>
</td>
</tr>
</tbody></table>
<h4><font face="Arial, Helvetica, sans-serif">Performance Indices and Other Results</font></h4>
<p><font face="Arial" size="3">For a user-defined fenestration system and user-defined
environmental conditions, WINDOW calculates: </font></p>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tbody><tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">The U-value, solar heat gain coefficient, shading coefficient, and
visible transmittance for the complete window system; <br>
<br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">The U-value, solar heat gain coefficient, shading coefficient, and
visible transmittance for the glazing system (center -of-glass values); <br>
<br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">The U-values of the frame and divider elements and corresponding
edge-of-glass areas (based on generic correlations); <br>
<br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">The total solar and visible transmittance and reflectances of the
glazing system; <br>
<br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">Color properties, i.e. L*, a*, and b* color coordinates, dominant
wavelength, and purity for transmitted and reflected (outdoor) solar radiation; <br>
<br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">The damage-weighted transmittance of the glazing system between 0.3
and 0.38 microns; <br>
<br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">The angular dependence of the solar and visible transmittances,
solar and visible reflectances, solar absorptance, and solar heat gain coefficient of the
glazing system; <br>
<br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">The percent relative humidity of the inside and outside air for
which condensation will occur on the interior and exterior glazing surfaces
respectively; <br>
<br>
</font></td>
</tr>
<tr>
<td valign="baseline" width="42">
<img src="http://windows.lbl.gov/images/WB01496_.gif" alt="bullet" height="13" hspace="14" width="13"></td>
<td valign="top" width="100%"><font face="Arial" size="3">The center-of-glass temperature distribution. </font></td>
</tr>
</tbody></table>
<p><font face="arial, helvetica, sans-serif" size="1">Updated:
05/17/11</font></p>
<br><br><div class="gmail_quote">On Fri, Jul 29, 2011 at 1:18 PM, Robby Oylear <span dir="ltr"><<a href="mailto:robbyoylear@gmail.com">robbyoylear@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
>From the 90.1 User's Manual pg 5-12:<div><br></div><div>"With Addendum 90.1ag (published <div>with Standard 90.1-2001) glazed wall </div><div>systems, including glass curtain walls used </div><div>on large buildings, storefront glazing </div>
<div>systems, and other similar products that </div><div>are assembled at the construction site, as </div><div>opposed to at the factory, must either be </div><div>rated using NFRC procedures or the </div><div>default U-factor, SHGC and VLT from </div>
<div>Table A8.2. Since the performance values </div><div>in Table A8.1A are based on uncoated </div><div>clear glass in poorly performing metal </div><div>frame, they do not offer any credit for </div><div>low-e coatings, thermal break frames or </div>
<div>any other advanced feature. In general, </div><div>values from Table A8.1A will not achieve </div><div><div>compliance with the fenestration </div><div>requirements. </div><div>The NFRC procedure for site-built </div>
<div>fenestration is described in NFRC 100. </div><div>The NFRC ratings are based on computer </div><div>simulations of various product options at </div><div>standard sizes. (For curtain walls, the </div><div>standard size specified is 2000 mm by </div>
<div>2000 mm, or approximately 79 in. by 79 </div><div>in.) Multiple glass options can be included </div><div>in one simulation matrix. The entire </div><div>simulation matrix is then validated by a </div><div>single physical test at the standard size. If </div>
<div>the matrix for a product has previously </div><div>been validated, then a new glass option </div><div>can be added to the matrix by simulation </div><div>alone. Simulations and tests must be done </div><div>by an NFRC-accredited simulation and </div>
<div>test laboratories." </div></div><div><br></div><div>Also, the LEED Reference Guide for Green Building Design and Construction, pg 275 specifically references Tables A8.1 and A8.2 or requires that the products be certified and labeled in accordance with NFRC. </div>
<div><br></div><div>Not seeing any statements that would allow the modeler to perform their own fenestration assembly performance calculations.</div><div><br></div><font color="#888888"><div>-Robby</div></font><div><div>
</div><div class="h5"><div><br></div><br><div class="gmail_quote">
On Fri, Jul 29, 2011 at 12:02 PM, Bill Talbert <span dir="ltr"><<a href="mailto:btalbert@aeieng.com" target="_blank">btalbert@aeieng.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div link="blue" vlink="purple" lang="EN-US"><div><p class="MsoNormal"><span style="font-size:11.0pt">Regarding Omar’s first question, I would also clarify that adding a frame to the baseline is probably not the correct approach unless you are adjusting the U-value to a center of glass value and accounting for the frame and edge effects such that the total fenestration performance is equal to the 90.1 prescribed value.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><u></u> <u></u></span></p><p class="MsoNormal" style="text-indent:.5in"><span style="font-size:11.0pt;color:#548DD4">‘</span><span style="font-size:11.0pt;color:#548DD4">They are silent about frames but I would use one, match the frame width of your proposed window. Use an Aluminum frame with no thermal break.’<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt">Baseline Table 5.5-1 through 5.5-8 specify ‘fenestration assembly’ values which include the effect of the frames and edge of glass. Modeling a frame in the Baseline will further degrade the overall fenestration U-value (unless your frame outperforms the glazing) and result in overestimating the savings relative to the fenestration performance. If you use the Table values for your window performance, frames shouldn’t be included. If you include a frame, you should create a 90.1 compliant product using WINDOW and use the appropriate frame and glazing performance values as eQuest inputs such that your overall frame and glazing performance matches the A90.1 Table value.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Regards,<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt">Bill<u></u><u></u></span></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">
<span style="font-size:11.0pt;color:#1F497D"><u></u> <u></u></span></p><table style="width:355.5pt" border="0" cellpadding="0" width="474"><tbody><tr><td style="width:125.25pt;padding:.75pt .75pt .75pt .75pt" valign="top" width="167">
<p class="MsoNormal"><b><span style="font-size:10.0pt;color:#660000;text-transform:uppercase">Bill Talbert</span></b><b><span style="font-size:9.0pt;color:#333333"> </span></b><span style="font-size:9.0pt;color:#333333">PE, LEED® AP<br>
</span><span style="font-size:10.0pt;color:#333333;text-transform:uppercase">Sustainable</span><span style="font-size:9.0pt;color:#333333"><u></u><u></u></span></p></td><td style="width:7.5pt;padding:.75pt .75pt .75pt .75pt" valign="top" width="10">
<p class="MsoNormal"><span style="font-size:9.0pt;color:#333333"> <u></u><u></u></span></p></td><td style="width:212.25pt;padding:.75pt .75pt .75pt .75pt" valign="top" width="283"><p class="MsoNormal"><b><span style="font-size:9.0pt;color:#660000">AEI</span></b><span style="font-size:9.0pt;color:#333333"> | AFFILIATED ENGINEERS, INC. <br>
5802 Research Park Boulevard | Madison, WI 53719<br><br></span><span style="font-size:9.0pt;color:#660000">P: <a href="tel:608.441.6677" value="+16084416677" target="_blank">608.441.6677</a> | C: <a href="tel:608.234.3803" value="+16082343803" target="_blank">608.234.3803</a> | F: <a href="tel:608.238.2614" value="+16082382614" target="_blank">608.238.2614</a></span><span style="font-size:9.0pt;color:#333333"> <br>
</span><span style="font-size:9.0pt;color:#660000"><a href="mailto:btalbert@aeieng.com" target="_blank"><span style="color:#660000;text-decoration:none">btalbert@aeieng.com</span></a> | </span><b><span style="font-size:9.0pt;color:#660000"><a href="http://www.aeieng.com/" target="_blank"><span style="color:#660000;text-decoration:none">www.aeieng.com</span></a></span></b><span style="font-size:9.0pt;color:#333333"> <u></u><u></u></span></p>
</td></tr></tbody></table><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><u></u> <u></u></span></p><p class="MsoNormal">
<u></u> <u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><u></u> <u></u></span></p><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:10.0pt">From:</span></b><span style="font-size:10.0pt"> <a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a> [mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>Carol Gardner<br>
<b>Sent:</b> Friday, July 29, 2011 1:35 PM<br><b>To:</b> Robby Oylear</span></p><div><br><b>Cc:</b> <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br>
</div><div><div></div><div><b>Subject:</b> Re: [Equest-users] URGENT: Window U-values: Total window assembly v/s Glass only<u></u><u></u></div></div><p></p></div><div><div></div><div><p class="MsoNormal">
<u></u> <u></u></p><p><span>This came off of the Window website:</span><u></u><u></u></p><p><span>WINDOW 6.3 is a publicly available computer program for calculating total window thermal performance indices (i.e. U-values, solar heat gain coefficients, shading coefficients, and visible transmittances). WINDOW 6.3 provides a versatile heat transfer analysis method consistent with the updated rating procedure developed by the National Fenestration Rating Council (NFRC) that is consistent with the ISO 15099 standard. The program can be used to design and develop new products, to assist educators in teaching heat transfer through windows, and to help public officials in developing building energy codes. </span><u></u><u></u></p>
<p><u></u> <u></u></p><p class="MsoNormal" style="margin-bottom:12.0pt"><u></u> <u></u></p><div><p class="MsoNormal">On Fri, Jul 29, 2011 at 11:26 AM, Robby Oylear <<a href="mailto:robbyoylear@gmail.com" target="_blank">robbyoylear@gmail.com</a>> wrote:<u></u><u></u></p>
<div><p class="MsoNormal">Carol,<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">I have to take exception to this:<u></u><u></u></p></div><div><p class="MsoNormal">"As far as NFRC, your Solarban glass data is NFRC rated which should be good enough, I think. It's rare in commercial buildings to have a rating for the entire window."<u></u><u></u></p>
<div><p class="MsoNormal"><u></u> <u></u></p></div></div><div><p class="MsoNormal">From my first response: <u></u><u></u></p></div><div><div><p class="MsoNormal"><span style="font-size:10.0pt">In order to meet LEED EAp2 Minimum Energy Performance, the project must comply with all mandatory provisions of ASHRAE 90.1-2007. Section 5.4.2 Fenestration and Doors requires that fenestration performance be determined per section 5.8.2. Section 5.8.2.4 U-factor requires that the U-factor for the overall fenestration area (including framing) be determined in accordance with NFRC 100. If you do not have NFRC data available, values from section A8.2 are the only acceptable alternative.</span><u></u><u></u></p>
</div><div><p class="MsoNormal"><u></u> <u></u></p></div></div><div><p class="MsoNormal"><span>NFRC values for the glazing alone not "good enough". This is exactly what the reviewer is trying to get at.</span><u></u><u></u></p>
</div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal"><span>I'd hardly call NFRC certification rare. In the State of Washington NFRC certification has been required for all glazing assemblies for over 10 years. </span><u></u><u></u></p>
</div><div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal"><span>How do you justify certifying that your projects have met the mandatory provisions of ASHRAE 90.1 without NFRC data?</span><u></u><u></u></p>
</div><div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal" style="margin-top:1.0pt"><a name="131778bfa521c87b_1317746f9272af25_13177255b63123b2__MailAutoSig"><b><span style="font-size:10.0pt;color:#632423">Robby Oylear, LEED</span></b></a><b><sup><span style="font-size:10.0pt;color:#632423">®</span></sup></b><b><span style="font-size:10.0pt;color:#632423"> AP BD+C</span></b><u></u><u></u></p>
<p class="MsoNormal"><i><span style="font-size:8.0pt;color:black">Mechanical Project Engineer</span></i><u></u><u></u></p><p class="MsoNormal"><i><span style="font-size:8.0pt;color:black">Energy Analyst</span></i><u></u><u></u></p>
<p class="MsoNormal"><i><span style="font-size:8.0pt;color:black"> </span></i><u></u><u></u></p><p class="MsoNormal" style="line-height:115%"><b><span style="font-size:8.0pt;line-height:115%;color:#632423">D</span></b><span style="font-size:8.0pt;line-height:115%;color:#1F497D"> </span><span style="font-size:8.0pt;line-height:115%;color:black"><a href="tel:206-788-4571" target="_blank">206-788-4571</a> |</span><span style="font-size:8.0pt;line-height:115%;color:#BFAB7F"> </span><b><span style="font-size:8.0pt;line-height:115%;color:#632423">C</span></b><span style="font-size:8.0pt;line-height:115%;color:#A50021"> </span><span style="font-size:8.0pt;line-height:115%;color:black"><a href="tel:206-354-2721" target="_blank">206-354-2721</a></span><u></u><u></u></p>
<p class="MsoNormal" style="line-height:115%"><a href="http://www.rushingco.com/" target="_blank"><b><i><span style="font-size:8.0pt;line-height:115%;color:#632423">www.rushingco.com</span></i></b></a><u></u><u></u></p></div>
<div><p class="MsoNormal"><u></u> <u></u></p></div></div><div><div><div><p class="MsoNormal">On Fri, Jul 29, 2011 at 11:12 AM, Carol Gardner <<a href="mailto:cmg750@gmail.com" target="_blank">cmg750@gmail.com</a>> wrote:<u></u><u></u></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><u></u> <u></u></p><div><div><p class="MsoNormal">On Thu, Jul 28, 2011 at 5:40 AM, Omar Katanani <<a href="mailto:omar@ecoconsulting.net" target="_blank">omar@ecoconsulting.net</a>> wrote:<u></u><u></u></p>
</div><blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in"><div><div><p class="MsoNormal"><span style="font-size:10.0pt;color:navy" lang="EN-GB">Dear all,</span><span lang="EN-GB"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:navy" lang="EN-GB"> </span><span lang="EN-GB"><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:navy" lang="EN-GB">Thank you for your responses.</span><span lang="EN-GB"><u></u><u></u></span></p>
<div><p class="MsoNormal"><span style="font-size:10.0pt;color:navy" lang="EN-GB"> </span><span lang="EN-GB"><u></u><u></u></span></p><ol start="1" type="1"><li class="MsoNormal" style="color:navy"><span style="font-size:10.0pt" lang="EN-GB">Are the NFRC testing and the values in table A8.2 used for the Baseline, Proposed, or both scenarios?</span><span lang="EN-GB"><u></u><u></u></span></li>
</ol></div></div></div></blockquote><div><p class="MsoNormal" style="background:white">For the baseline windows, Appendix G gives the following instructions:<br>Fenestration<br>U-factors shall match the appropriate requirements in Tables 5.5-1 through<br>
5.5-8. Fenestration SHGC shall match the appropriate requirements in Tables<br>5.5-1 through 5.5-8. <br>They are silent about frames but I would use one, match the frame width of your proposed window. Use an Aluminum frame with no thermal break.<u></u><u></u></p>
</div><div><blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in"><div><div><p class="MsoNormal" style="margin-left:.25in"><span style="font-size:10.0pt;color:navy" lang="EN-GB"> </span><span lang="EN-GB"><u></u><u></u></span></p>
<ol start="2" type="1"><li class="MsoNormal" style="color:navy"><span style="font-size:10.0pt" lang="EN-GB">Let’s say I do not have NFRC test results and decide to use the values in table A8.2. For a clear double glazed and metal frame type, I get an assembly U-factor of 5.1. How can I input this into eQUEST? As far as I know, I can enter the glass properties and the frame properties. Do I have to play with the glass properties and check the LV-D report for the calculated Assembly u-value?</span><span lang="EN-GB"><u></u><u></u></span></li>
</ol></div></div></blockquote></div><div><p class="MsoNormal">A U of 5.1 does not make sense. Are you sure this isn't R?<br> <u></u><u></u></p></div><div><blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in">
<div><div><p class="MsoNormal" style="text-indent:.5in"><span style="font-size:10.0pt;color:navy" lang="EN-GB">Similarly, for the baseline, Tables 5.5-1 to 5.5-8 of ASHRAE 90.1 provide the assembly u-values for vertical glazing. How can I enter these values into eQUEST?</span><span lang="EN-GB"><u></u><u></u></span></p>
<p class="MsoNormal" style="margin-left:.25in"><span style="font-size:10.0pt;color:navy" lang="EN-GB"> </span><span lang="EN-GB"><u></u><u></u></span></p><ol start="3" type="1"><li class="MsoNormal" style="color:navy"><span style="font-size:10.0pt" lang="EN-GB">I am attaching the specs of the proposed glazing. These numbers are for the glass only (note that the u-values reported are NFRC ones). Additionally, I know that the frame will be aluminium. Do I still need NFRC U-values for the whole assembly, or is the NFRC usually for the glass only? If yes, how can I calculate the whole assembly U-value (given that eQUEST doesn’t have the ability to calculate this)</span><span lang="EN-GB"><u></u><u></u></span></li>
</ol></div></div></blockquote></div><div><p class="MsoNormal"><br><span style="background:white">For your proposed building I highly recommend you use LBNL's Window program. In it you can select your window type, e.g. casement, picture, etc,, select your glass from their glass library, which is huge and definitely includes Solarban, and then model your frame using whatever information the architect gives you related to thermal breaks and spacers. After you run your window in the program you can select to save it to a DOE 2 report which will automatically go into your DOE 2 Window folder. Then you just have to select it from the pull down menu.</span><br>
<br><span style="background:white">Otherwise, input your glass values, as you are already, <u>and</u> input your frame data, the same data you got from your architect, and model it that way. When you look at your LV-D report you will likely see a variety of U values. That's because they will vary based on window size.due to the frame effect. You need to have a frame.</span><br>
<br><span style="background:white">As far as NFRC, your Solarban glass data is NFRC rated which should be good enough, I think. It's rare in commercial buildings to have a rating for the entire window.</span><br><br>
<span style="background:white">Carol</span><u></u><u></u></p>
</div><div><div><blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in"><div><div><p class="MsoNormal"><span style="font-size:10.0pt;color:navy" lang="EN-GB"> </span><span lang="EN-GB"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:navy" lang="EN-GB">Thanks for clarifying this, as my project is outside the US and we are not too familiar with standards such as NFRC.</span><span lang="EN-GB"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:navy" lang="EN-GB"> </span><span lang="EN-GB"><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:navy" lang="EN-GB">Best regards,</span><span lang="EN-GB"><u></u><u></u></span></p>
<div><div><p class="MsoNormal"><span style="font-size:10.0pt;color:navy" lang="EN-GB">Omar</span><span lang="EN-GB"><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:navy" lang="EN-GB">___________________________</span><span style="color:navy" lang="EN-GB"> </span><span lang="EN-GB"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:navy" lang="EN-GB">Omar Katanani</span><span style="color:navy" lang="EN-GB"><br></span><span style="font-size:10.0pt;color:navy" lang="EN-GB">Sustainable Design Engineer</span><span lang="EN-GB"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:navy" lang="EN-GB">Email: <a href="mailto:omar@ecoconsulting.net" target="_blank">omar@ecoconsulting.net</a></span><span lang="EN-GB"><u></u><u></u></span></p><p class="MsoNormal">
<span style="color:navy" lang="EN-GB"> </span><span lang="EN-GB"><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:7.5pt;color:navy">EcoConsulting (Lebanon)</span><span lang="EN-GB"><u></u><u></u></span></p>
</div><p class="MsoNormal"><span style="font-size:7.5pt;color:navy">Nahas Building, 4<sup>th</sup> floor</span><span lang="EN-GB"><u></u><u></u></span></p><div><p class="MsoNormal"><span style="font-size:7.5pt;color:navy">4 St-Maron Street / Georges Haddad Avenue</span><span lang="EN-GB"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;color:navy">Postal Code: 2028 5806 SAIFI</span><span lang="EN-GB"><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:7.5pt;color:navy">Beirut, Lebanon</span><span lang="EN-GB"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;color:navy">Tel: </span><span style="font-size:7.5pt;color:navy" lang="EN-GB"><a href="tel:%2B961%20%280%29%201%20971%20266" target="_blank">+961 (0) 1 971 266</a><br>
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<p class="MsoNormal"><span style="font-size:7.5pt;color:navy" lang="EN-GB">EcoConsulting (UK) Ltd<br>28 Marshalsea Road<br>London, SE1 1HF<br>Tel: <a href="tel:%2B44%20%280%29%20207%20939%200989" target="_blank">+44 (0) 207 939 0989</a><br>
Fax: <a href="tel:%2B44%20%280%29%20207%20939%200981" target="_blank">+44 (0) 207 939 0981</a></span><span lang="EN-GB"><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:7.5pt;color:navy" lang="EN-GB">Website: <a href="http://www.ecoconsulting.net/" target="_blank">www.ecoconsulting.net</a></span><span lang="EN-GB"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:navy" lang="EN-GB"> </span><span lang="EN-GB"><u></u><u></u></span></p><p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;color:navy" lang="EN-GB"> <img src="cid:image001.jpg@01CC4DF7.7A685320" border="0" height="102" width="870"></span><span lang="EN-GB"><u></u><u></u></span></p>
</div></div><div><div class="MsoNormal" style="text-align:center" align="center"><hr align="center" size="2" width="100%"></div><p class="MsoNormal"><b><span style="font-size:10.0pt">From:</span></b><span style="font-size:10.0pt"> Robby Oylear [mailto:<a href="mailto:robbyoylear@gmail.com" target="_blank">robbyoylear@gmail.com</a>] <br>
<b>Sent:</b> 28 July 2011 00:53<br><b>To:</b> Omar Katanani<br><b>Cc:</b> Brad Robinson; <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a></span><span lang="EN-GB"><u></u><u></u></span></p>
<div><div><p class="MsoNormal"><span style="font-size:10.0pt" lang="EN-GB"><br><b>Subject:</b> Re: [Equest-users] URGENT: Window U-values: Total window assembly v/s Glass only</span><span lang="EN-GB"><u></u><u></u></span></p>
</div></div></div><div><div><p class="MsoNormal"><span lang="EN-GB"> <u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB">Omar,<u></u><u></u></span></p><div><p class="MsoNormal"><span lang="EN-GB"> <u></u><u></u></span></p>
</div><div><p class="MsoNormal"><span lang="EN-GB">To directly answer your question:<u></u><u></u></span></p></div><div><p class="MsoNormal"><span lang="EN-GB"> <u></u><u></u></span></p></div><div><p class="MsoNormal"><span lang="EN-GB">"</span><span style="font-size:9.0pt;color:navy" lang="EN-GB">I’m assuming that, given that I entered the u-values for the glass only, and then I entered information about the frame, then I need not worry about any conversions in U-values, <u>since eQUEST has all the necessary information to calculate the equivalent u-value of the whole pane + frame assembly,</u>right?</span><span lang="EN-GB">"<u></u><u></u></span></p>
</div><div><p class="MsoNormal"><span lang="EN-GB"> <u></u><u></u></span></p></div><div><p class="MsoNormal"><span lang="EN-GB">No. Your method will result in an assembly U-value based on your input glass conductance and whatever default frame properties that the eQUEST wizard will use. I have never tried to let eQUEST determine an assembly value, as NFRC values are required for LEED and code compliance studies. I would not be surprised if the values eQUEST is calculating (shown in LV-D and LV-E reports like previously mentioned) are much different than what you'll actually see in the test results.<u></u><u></u></span></p>
</div><div><p class="MsoNormal"><span lang="EN-GB"> <u></u><u></u></span></p></div><div><p class="MsoNormal"><span lang="EN-GB">Again, NFRC values are a LEED requirement, so unless you're just doing preliminary analysis for a client, you need to receive NFRC simulation reports or certified product directory numbers in accordance with NFRC 100.<u></u><u></u></span></p>
</div><div><p class="MsoNormal"><span lang="EN-GB"> <u></u><u></u></span></p></div><div><p class="MsoNormal" style="margin-top:1.0pt"><b><span style="font-size:10.0pt;color:#632423" lang="EN-GB">Robby Oylear, LEED<sup>®</sup> AP BD+C</span></b><span lang="EN-GB"><u></u><u></u></span></p>
<p class="MsoNormal"><i><span style="font-size:8.0pt;color:black" lang="EN-GB">Mechanical Project Engineer</span></i><span lang="EN-GB"><u></u><u></u></span></p><p class="MsoNormal"><i><span style="font-size:8.0pt;color:black" lang="EN-GB">Energy Analyst</span></i><span lang="EN-GB"><u></u><u></u></span></p>
<p class="MsoNormal"><i><span style="font-size:8.0pt;color:black" lang="EN-GB"> </span></i><span lang="EN-GB"><u></u><u></u></span></p><p class="MsoNormal" style="line-height:115%"><b><span style="font-size:8.0pt;line-height:115%;color:#632423" lang="EN-GB">D</span></b><span style="font-size:8.0pt;line-height:115%;color:#1F497D" lang="EN-GB"> </span><span style="font-size:7.5pt;line-height:115%;color:black" lang="EN-GB"><a href="tel:206-788-4571" target="_blank">206-788-4571</a> |</span><span style="font-size:8.0pt;line-height:115%;color:#BFAB7F" lang="EN-GB"> </span><b><span style="font-size:8.0pt;line-height:115%;color:#632423" lang="EN-GB">C</span></b><span style="font-size:8.0pt;line-height:115%;color:#A50021" lang="EN-GB"> </span><span style="font-size:7.5pt;line-height:115%;color:black" lang="EN-GB"><a href="tel:206-354-2721" target="_blank">206-354-2721</a></span><span lang="EN-GB"><u></u><u></u></span></p>
<p class="MsoNormal" style="line-height:115%"><span lang="EN-GB"><a href="http://www.rushingco.com/" target="_blank"><b><i><span style="font-size:8.0pt;line-height:115%;color:#632423">www.rushingco.com</span></i></b></a><u></u><u></u></span></p>
</div><div><p class="MsoNormal"><span lang="EN-GB"> <u></u><u></u></span></p></div><div><p class="MsoNormal"><span lang="EN-GB"> <u></u><u></u></span></p></div><div><p class="MsoNormal"><span lang="EN-GB"> <u></u><u></u></span></p>
<div><p class="MsoNormal"><span lang="EN-GB">On Wed, Jul 27, 2011 at 2:44 PM, <<a href="mailto:omar@ecoconsulting.net" target="_blank">omar@ecoconsulting.net</a>> wrote:<u></u><u></u></span></p><p class="MsoNormal">
<span lang="EN-GB">Dear Robby,<br><br>Yes, I am modeling for LEED purposes.<br>I'll look into A8.2. But at least, is my method correct for the proposed scenario?<br><br>Brad: I think you need to enter the center of glass u-value in the "Glass Type", and then enter the frame properties in the "Window" properties...<br>
<br>Best,<br>Omar<u></u><u></u></span></p><div><p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-GB"><br><br>Quoting Brad Robinson <<a href="mailto:brad.robinson@yahoo.com" target="_blank">brad.robinson@yahoo.com</a>>:<u></u><u></u></span></p>
</div><blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt"><div><p class="MsoNormal"><span lang="EN-GB"><br><br>
Is the u-value listed for a manufacturer and specific model on the NRCAN website centre of glass or overall assembly? Many windows are custom made to suit so I am unclear if each individual custom window would need to be tested.<br>
<br><br><br>In eQuest, when entering the window, if the u-value represents the whole window, including frame, do you need to enter a frame width, conductance etc as well under the Window Frame section under Window Properties? Thanks.<br>
<br><br>Brad Robinson<br><br><br><br>________________________________<br>From: Robby Oylear <<a href="mailto:robbyoylear@gmail.com" target="_blank">robbyoylear@gmail.com</a>><br>To: Omar Katanani <<a href="mailto:omar@ecoconsulting.net" target="_blank">omar@ecoconsulting.net</a>><br>
Cc: <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br>Sent: Wednesday, July 27, 2011 12:32:08 PM<br>Subject: Re: [Equest-users] URGENT: Window U-values: Total window assembly v/s Glass only<br>
<br><br>Omar,<br><br>The answer depends on the purpose of your study. If you're trying to get results for a client on the impact of the glazing on their energy performance, this may be adequate. Make sure you've entered in the framing information properly (metal vs. non-metal).<br>
<br>I'd recommend opening up your simulation output results file (xxxx.SIM) and going to the either the last page of the LV-D report or sort through your LV-E report to see what value eQUEST has calculated. Compare these values to the ASHRAE Fundamentals results for overall assembly values including frame to see how close you've come. I would not blindly trust that eQUEST will give you an appropriate overall assembly value based on entering only the center of glass number.<br>
<br>However, if this is for a LEED study, this is not adequate. This an excerpt from an e-mail I sent out recently regarding LEED and NFRC requirements.<br><br>In order to meet LEED EAp2 Minimum Energy Performance, the project must comply with all mandatory provisions of ASHRAE 90.1-2007. Section 5.4.2 Fenestration and Doors requires that fenestration performance be determined per section 5.8.2. Section 5.8.2.4 U-factor requires that the U-factor for the overall fenestration area (including framing) be determined in accordance with NFRC 100. If you do not have NFRC data available, values from section A8.2 are the only acceptable alternative.<br>
<br>Robby Oylear, LEED®AP BD+C<br>Mechanical Project Engineer<br>Energy Analyst<br> <u></u><u></u></span></p></div><p class="MsoNormal"><span lang="EN-GB">D206-788-4571 |C206-354-2721<u></u><u></u></span></p><div><p class="MsoNormal">
<span lang="EN-GB"><br><a href="http://www.rushingco.com" target="_blank">www.rushingco.com</a><br><br><br><br><br><br>On Wed, Jul 27, 2011 at 8:14 AM, Omar Katanani <<a href="mailto:omar@ecoconsulting.net" target="_blank">omar@ecoconsulting.net</a>> wrote:<br>
<br>Dear all,<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB"> <br>I have a small question regarding entering<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB">window properties to eQUEST:<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-GB"> <br>I have read a lot of emails in the forum<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB">discussing NFRC testing, LBNL Window 5 import, and other topics that I haven?t<br>
paid attention to before.<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB"> <br>The way I modelled my windows is the<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB">following:<u></u><u></u></span></p>
</div><blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt"><p class="MsoNormal"><span lang="EN-GB"> <br> 1. I have manufacturer?s specifications listing the glass U-values, not the total assembly.<br>
2. In the ?Glass Types? (eQUEST Detailed Mode), I created glass types, and entered the glass conductance, visible transmittance, SC, and emissivity from the manufacturer?s details I have.<br> 3. When creating windows, I specify which glass type (from the ones I created in step 2), in addition to the frame width and conductance.<u></u><u></u></span></p>
<div><p class="MsoNormal"><span lang="EN-GB"><br> <br>I?m assuming that, given that I<u></u><u></u></span></p></div></blockquote><div><p class="MsoNormal"><span lang="EN-GB">entered the u-values for the glass only, and then I entered information about<br>
the frame, then I need not worry about any conversions in U-values, since<br>eQUEST has all the necessary information to calculate the equivalent u-value of<br>the whole pane + frame assembly, right?<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-GB"> <br>I appreciate your feedback / comments<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB">today if possible, as this has become really urgent!<u></u><u></u></span></p>
</div><blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt"><div><p class="MsoNormal"><span lang="EN-GB"> <br>Many thanks,<br>
Omar<br>___________________________<br>Omar Katanani<br>Sustainable Design Engineer<br>Email: <a href="mailto:omar@ecoconsulting.net" target="_blank">omar@ecoconsulting.net</a><br> <br>EcoConsulting (Lebanon)<u></u><u></u></span></p>
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</blockquote></div></div></div><p class="MsoNormal"><span style="color:#888888"><br><br clear="all"><br>-- <br>Carol Gardner PE<u></u><u></u></span></p></div><p class="MsoNormal"><u></u> <u></u></p></div></div></div></div>
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