<div>Lauren,</div>
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<div>I don't think you can do what you are trying to achieve in eQuest/DOE2. There's a couple things to think about. You could effectively assign the thermal properties of your roof construction to that of your glazing (i.e. U-value, reflectance, etc.) but you will not be able to simulate the solar gain properties or VLT unless the object is specified as a window or skylight. If you go this route you will also not be able to simulate daylight harvesting from the roof glass either. DOE2 needs to know that it is a window or skylight in order for the daylighting controls to work.</div>
<div> </div>
<div>I would suggest maybe 2 options to try: 1) You can input skylights to cover the greatest percentage of your roof area that will fit within the geometry that you describe and still get some amount of glass roof effects accounted for in your simulation although we know it won;t be 100% accurate for the proposed design. 2) you can do all of these thermal effect calculations outside of eQuest and use your calculated data to integrate these numbers with your simulation output---this is a much more tedious approach and you will have to rely on your manual engineering analysis to describe the anticipated thermal results that can't be simulated within the program.</div>
<div> </div>
<div>Hope this helps.</div>
<div>Pasha<br><br></div>
<div class="gmail_quote">On Thu, May 6, 2010 at 10:16 AM, Lauren Rosenthal <span dir="ltr"><<a href="mailto:Lauren.Rosenthal@arup.com">Lauren.Rosenthal@arup.com</a>></span> wrote:<br>
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<p class="MsoNormal">All,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Does anyone know how to change an existing roof in detailed mode of the model to a glass roof? It is an irregular shape (from a polygon) and therefore creating child windows all over it will be very hard because they will not fit in the shape very easily as rectangular windows. Can I change its properties in the .inp file?</p>
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<p class="MsoNormal">Thanks in advance,</p>
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<p class="MsoNormal"><span style="COLOR: gray; FONT-SIZE: 10pt">____________________________________</span></p>
<p class="MsoNormal"><span style="COLOR: gray; FONT-SIZE: 10pt">Lauren Rosenthal</span><span style="COLOR: gray"></span></p>
<p class="MsoNormal"><span style="COLOR: gray; FONT-SIZE: 10pt">Mechanical Engineer</span><span style="COLOR: gray"></span></p>
<p class="MsoNormal"><span style="COLOR: gray"> </span></p>
<p class="MsoNormal"><span style="COLOR: gray; FONT-SIZE: 10pt">Los Angeles CA</span><span style="COLOR: gray"></span></p>
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