The terms commercial roof coatings, flat roof coatings and low-sloped roof coatings are interchangeable. They all simply describe a roof coating that is made specifically for a roofs surface with a slope of 2:12 inches or less. The opposite of this is a steep-sloped roof, which has a slope greater than 2:12 inches.
Now that we figured that out, lets discuss the primary advantage of selecting a roof coating for your roof. Roof coatings are popular because they create a monolithic or seamless membrane that is custom tailored to your roofs specific needs. They are spray applied over your existing roof and around all items that are specific to your roof (walls, pipes, HVAC equipment, skylights, etc…) without any seams or penetrations to the membrane, providing a truly seamless roof membrane.
Seamless membranes are superior because most roof failures occur around seams that have aged and lost their flexibility over the years, ultimately resulting in leaks. Let me explain, as your roof ages, it becomes brittle and loses its capability to remain flexible. As the building expands and contracts with temperature fluctuations, the roof has a harder time keeping up with the movement causing a bulk of the tension to occur in areas where there are joints, seams and penetrations. The isolated tension and deterioration of the roof causes these areas to ripe and tear, leading to water penetrating into the building. Seamless membranes on the other hand are able to handle the additional stress from the temperature fluctuations because the tension is spread evenly across the entire roof field.