According to a study conducted by the American Society of Heating and Air Conditioning Engineers, solar radiation through glass is responsible for approximately 20% of the load on an air conditioner.
retractable
How to Conserve Energy with Retractable Patio/Window Awnings
(via www.sunsetter.com)
Submitted by ndvakil on Tue, 2008-05-06 21:18. | Tags: science | awning | awnings | patio | retractable | window awnings
