[Equest-users] Roof Heat Gain

Matthew Higgins higgins at edi-arch.com
Thu Apr 16 14:39:17 PDT 2009


Thank you for your help. I attempted your advice and still do not see 
heat-transfer through the roof surface.

I think I found the solution though, I am simulating all roofs as 
pitched exterior walls on a vertex-by-vertex basis in order to achieve a 
sloping rotunda. The results still aren't convincing when looking at 
exterior wall heat-transfer, but if that sparks anyone's opinion I would 
appreciate it.

Regards

Matthew Higgins, LEED AP + ASHRAE-HBDP
Building Performance Specialist
Environmental Dynamics, Inc.
Architecture and Sustainability Consulting Services
505.242.2851

Any data provided by the Consultant, verbal or written, are to be considered opinions of building energy and/or daylight performance. The Client understands that the Consultant has no control of occupant habits, equipment or material performance or characteristics, site or climate conditions or the Contractor's method of assembly, and that the Consultant's opinions regarding building energy/daylight performance are made on the basis of the Consultant's professional judgment and experience. The Consultant makes no warranty, express or implied, that the energy/daylight performance of the building will not vary from the Consultant's opinion of building energy/daylight performance.

rongxinyin wrote:

> Check the plenum temperature between the roof and ceiling, you may 
> find the plenum temperature is higher than the outside temperature, it 
> cause that there is no heat transfer through the roof surfaces.
> Rongxin
> 2009-04-15
> ------------------------------------------------------------------------
> rongxinyin
> ------------------------------------------------------------------------
> *发件人:* Matthew Higgins
> *发送时间:* 2009-04-15 12:44:39
> *收件人:* equest-users
> *抄送:*
> *主题:* [Equest-users] Roof Heat Gain
> Upon investigating heat transfer in a small college addition my SIM
> output does not indicate any heat-transfer through the roof surfaces.
> There is a drop ceiling with unconditioned spaces below.
> Does anyone know why this is happening?
> Much thanks.
> -- 
> Matthew Higgins, LEED AP + ASHRAE-HBDP
> Building Performance Specialist
> Environmental Dynamics, Inc.
> Architecture and Sustainability Consulting Services
> 505.242.2851
> Any data provided by the Consultant, verbal or written, are to be 
> considered opinions of building energy and/or daylight performance. 
> The Client understands that the Consultant has no control of occupant 
> habits, equipment or material performance or characteristics, site or 
> climate conditions or the Contractor's method of assembly, and that 
> the Consultant's opinions regarding building energy/daylight 
> performance are made on the basis of the Consultant's professional 
> judgment and experience. The Consultant makes no warranty, express or 
> implied, that the energy/daylight performance of the building will not 
> vary from the Consultant's opinion of building energy/daylight 
> performance.
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