[Equest-users] Exterior Color (Absorp.)

Jones, Christopher cjones at halsall.com
Tue Sep 23 14:02:11 PDT 2014

When the absorptance is decreased, one would expect the heating load to increase and the cooling load to decrease.  The overall energy difference would depend on which increased/decreased more.

Christopher Jones, P.Eng.
Tel: 416.644.4226 • Toll Free: 1.888.425.7255 x 527

From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of behnam jowkar
Sent: Tuesday, September 23, 2014 3:57 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Exterior Color (Absorp.)

Hi All,

When I reduce the roofing material absorptance value in my model, under construction properties, my energy consumption increases instead of decreasing, which suggests that this input is actually reflectance and not absorptance. has anyone experience something similar or am I missing something here? Any input is much appreciated.



Behnam Jowkar, MASc, BEng, LEED AP BD+C
Mechanical Engineer In Training
p: 416-716-5758
e: behnamjowkar at gmail.com<mailto:behnamjowkar at gmail.com>

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