Dihydrogen Monoxide Facts. 1  is also known as hydric acid, and is the major component of acid rain. 2  contributes to the Greenhouse Effect. 3  may cause severe burns. 4  contributes to the erosion of our natural landscape. 5  accelerates corrosion and rusting of many metals.
Thermoplastic Polyolefin (TPO) is the fastest growing segment in the commercial roofing industry. To take advantage of this recent popularity, a growing number of companies have begun offering TPO single-ply membranes. Unfortunately, not all TPO is created equally.
White and tan Commercial TPO membranes meet the new version of the Energy Star Energy Ratings. These standards define cool roofs to have a minimum three-year aged reflectance of 0.55 and a minimum thermal emittance of 0.75 for low-sloped nonresidential buildings.