Elastomeric roof coatings have been used for many years to extend the useful life of several types of roofing substrates. The roof coatings market has seen significant growth, driven by the “cool roof” movement. By using a white roof coating, the underlying building and surroundings can be protected from excessive heat buildup. A proper white reflective elastomeric coating offers reduction in temperature and hence, a reduction in cooling costs.
Elastomeric roof coatings need to have very good water barrier properties. High water resistance is required so that the elastomeric coating can withstand ponding water, which can occur on low-slope roofs. Good adhesion to the substrate and good weatherability are some of the other factors that contribute to a long service life of the roof coating.