Month: September 2022

What is a Cool Metal Roof?For the benefit of our new readers or those who missed our previous articles, here is a short article on what cool metal roofs are about. Cool roofing is defined differently by various performance criteria in codes, standards, and incentive programs. In general, a cool roof is one that has relatively high solar reflectance and high thermal emittance. During the daylight hours, a roof is constantly subjected to solar energy striking its surface. The term “Solar Reflectance” is a measure of the amount of that solar energy that is immediately reflected from the surface. It is …