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<DIV>Hi group,</DIV>
<DIV> </DIV>
<DIV>I have a building with 8-foot concrete floor slab (50 feet below grade), 3-
to 6-foot below-grade exterior walls, and 3- to 8-foot interior partitions in
the sub-grade shells.</DIV>
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<DIV>I wondered if anyone had a quick hint they could give me, particularly in
light of LEED 2009 review that will happen. The calculus is done, and the
transfer function time constant is so huge that the inner surface temperature of
the walls just isn’t going to vary much. Ground temperature is 60°F all
year and doesn’t vary. After they are poured, it’ll take 8 to 10 months
for the 8-foot walls to cool down to indoor (conditioned) ambient temperature
just from the heat of curing.</DIV>
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<DIV>Any comments or experience will be most appreciated.</DIV>
<DIV> </DIV>
<DIV>Thanks,</DIV>
<DIV> </DIV>
<DIV>Dave</DIV>
<DIV> </DIV>
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<DIV><SPAN style="FONT-SIZE: 8pt"><SPAN
style="FONT-FAMILY: andale mono,times"><STRONG><SPAN
style="FONT-SIZE: 12pt">David R. Weigel, PE</SPAN></STRONG></SPAN></SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 8pt"><SPAN
style="FONT-FAMILY: andale mono,times"><SPAN style="FONT-SIZE: 12pt">Managing
Member</SPAN></SPAN></SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 8pt"><SPAN
style="FONT-FAMILY: andale mono,times"><SPAN style="FONT-SIZE: 12pt">1189 Golden
Circle SW, Lilburn GA 30047</FONT></DIV>
<DIV><SPAN style="FONT-SIZE: 8pt"><SPAN
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