A cool roof is a way of reducing the costs associated with air conditioning and this reduces energy usage which in turn reduces emissions. Estimates for cost savings associated with cool roofs run between 10 and 25 percent. There are a number of tools to help people evaluate the cost savings
resulting from the installation of cools roofs. Below you will find two such tools,
one from the US Department of Energy’s Oak Ridge National Laboratory deals and
the other developed by Oak Ridge National Laboratory and Lawrence Berkeley
National Laboratory.
1. DOE Cool Roof Calculator
This tool developed by U.S. Department of Energy’s Oak Ridge National
Laboratory estimates cooling and heating savings for low slope roof applications
with non-black surfaces.
This tool was developed by Oak Ridge National Laboratory and Lawrence
Berkeley National Laboratory in order to provide industry-consensus roof savings
for both residential and commercial buildings. It reports the net annual energy
savings (cooling energy savings minus heating penalties) and thus is only
applicable to the buildings with a heating and/or cooling system.
© 2012, Richard Matthews. All rights reserved.
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