The image is very helpful! (and the E+ Yahoo forum accepts these when sent as an email attachment)
I am not sure why you care about the warnings; often they are given only to make sure that you are aware of a non-standard construction, not because it’s incorrect. I think you should retain the correct geometry for heat transfer and solar orientation.
p.s., This is called “sawtooth” construction in the USA and was very common 50 years ago, but uncommon today. It certainly lets in a lot of light!
The Building Performance Team
James V. Dirkes II, P.E., BEMP , LEED AP
1631 Acacia Drive NW
Grand Rapids, MI 49504
616 450 8653
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Jean marais
Sent: Friday, April 13, 2012 1:43 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Convex Roof - Jigsaw Roof
Dear Group,
Problem is a Jigsaw shaped roof is convex. This roof is almost fully glazed. Is it plausible to keep the windows with current tilt and azumith geometry (non-planar to base surface, ignoring warnings), but change the roof to flat? This will decrease the heattransfer surface
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