Roof coating

Many roof coatings are elastomeric, that is, they have elastic properties that allow them to stretch and return to their original shape without damage.

As such, the roof coating is the topmost layer of protection for the membrane, receiving the impact of sunlight (both infrared and ultraviolet (UV)), rain, hail and physical damage.

Roof coatings will only waterproof the substrates but will not withstand any kind of on going use by people or vehicles (such as walkways, patios, sundecks, restaurants, etc.).

Anyone considering this type of application should be aware of the concerns so they can weigh them against the benefits claimed in coating product promotional materials.

Field studies have shown that cool roof coatings can lower rooftop temperatures and reduce air conditioning bills.

Primary materials used in roof coating formulation include acrylics, asphalt, butyl, coal tar pitch, polyurea, polyurethanes, polyvinylidene fluoride, silicones, and styrene-butadiene.