According to the department of energy on a sunny day the temperature of a traditional black roof can be 50 f warmer than the air temperature.
How to cool the roof in summer.
On a typical summer afternoon a cool colored roof that reflects 35 of sunlight will stay about 12 c 22 f cooler than a traditional roof that looks the same but reflects only 10 of sunlight.
A cool roof under the same conditions could stay more than 50 f cooler and save energy and money by using less air conditioning.
Generally speaking the cost of installing cool roofing during construction is comparable to traditional roofing as this energy saving calculator demonstrates so small business owners may save on energy costs in long run by installing a cool roof.
Standard or dark roofs can reach temperatures of 150 f or more in the summer sun.
What are cool roofs.
A hot roof won t last as long as you want as the heat damages it one summer at a time.
Because a white roof strongly reflects both visible and near infrared sunlight a white roof will typically be cooler than a cool colored roof.
We stay in the top floor and right on top of our floor is an open terrace.
A cool reflective roof stays 50 to 60 degrees cooler when exposed to the same summer heat.
A cool roof is a roof designed to maintain a lower surface temperature in bright sunshine than a traditional roof source.
These fans remove the excess heat from the top part of the house allowing you to get rid of the problem and ensure that your roof lasts for many years to come.
The sun beating down on your roof can cause its temperature to rise.
Thus solar attic fans could very well be one of the best solutions for hot roofs.
The cool roof rating council is a not for profit organization that validates the reflective and emissive properties of cool roof products.
Cool colored dark roofs look like traditional dark roofs but better reflect near infrared light.
While the term cool roof is sometimes used to describe any roofing surface that is cooler than a standard rooftop green certification.
A cool roof can benefit a building and its occupants by.
Department of energy the surface of a cool roof reflects more sunlight and releases more heat than a so called hot or dark roof.
However a cool roof need not be white.
When dealing with this warm climate it would be beneficial to know how to cool your roof in the summer.
There are many cool color products which use darker colored pigments that are highly reflective in the near infrared non visible portion of the solar spectrum.
The cool roof rating council accepts test reports from approved testing laboratories and then compiles the information in an easily accessed database.