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<font size="+1">In the room space the roof is actually the ceiling.
Because the room and plenum spaces are close or the same
temperature there is minimal or no heat loss between them. You
need to go to the plenum space for the heat loss through the
exterior roof. If you want the heat loss for the full floor to
floor space you have to add the room and plenum losses. The
plenum will have some wall surfaces as well.<br>
Bruce Easterbrook P.Eng.<br>
Abode Engineering<br>
</font><br>
On 06/09/2011 01:46 PM, Jonathan Smith wrote:
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<p class="MsoNormal">RE: Detailed Report, LS-F Building Monthly
Load Components <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Why would roof heat losses be zero in a
model defined with plenum spaces that have roofs components?
In report LS-F, there are no losses reported in ‘Roof’ and
‘Wall’ heat losses seem exceptionally high, as if ‘Roof’
losses are reported in ‘Walls’. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">All spaces were created using the eQuest
wizard mode. Inspecting the “exterior surface properties”, the
word “Roof” appears below the surface name. All roof
constructions are made with layers input, having a U-Value 0f
0.043. When creating exterior surfaces in detailed edit mode,
no option exists for defining an exterior surface as a roof or
wall. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So, how are the loads associated with roofs
reporting in LS-F? What other reasons might roof loads not
report, or at least not report in the correct load component?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span
style="font-size:9.0pt;font-family:"Arial","sans-serif"">Jonathan
R. Smith AIA LEED</span></b><span style="font-size:9.0pt">®</span><b><span
style="font-size:9.0pt;font-family:"Arial","sans-serif"">AP</span></b><span
style="font-size:9.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:8.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif""><img id="Picture_x0020_1"
src="cid:part1.04090908.05050500@bellnet.ca"
alt="signature-logo_60%" height="66" width="300"></span><span
style="font-size:10.0pt;font-family:"Arial","sans-serif""><br>
<br>
</span><span
style="font-size:9.0pt;font-family:"Arial","sans-serif"">40
Beaver Street</span><span style="font-size:9.0pt"><br>
</span><span
style="font-size:9.0pt;font-family:"Arial","sans-serif"">Albany,
New York 12207</span><span style="font-size:9.0pt"><br>
</span><span
style="font-size:9.0pt;font-family:"Arial","sans-serif"">p:
518.463.8068 x268<br>
f: 518.463.8069 <br>
</span><a moz-do-not-send="true"
href="http://www.csarchpc.com/"
title="http://www.csarchpc.com/"><span
style="font-size:9.0pt;font-family:"Arial","sans-serif";color:black">www.csarchpc.com</span></a><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif""><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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