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Roof Solar System

Juanita Said:

What percentage of a buildings solar heat gain is due to the roof, and what percentage is due to the walls?

We Answered:

You are essentially asking a standard heat loss/gain calculation. Beyond the location of the building you also need to account for exposure, fenestration, etc. Additionally you need to be aware of what is in the warehouse. In that we (people) reside in the bottom 8' that would be the area of concern for comfort cooling and space conditioning for people. If you are storing perishable products you will need to account and address those items. A good point of reference would be the ASHRAE handbooks that most HVAC engineers have. In those you will find a wealth of information.

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