Commercial Roofing: 4 Roofing Materials To Use For A Flat Roof
Of the different types of roofs for commercial buildings, flat roofs are among the most common. These roofs are easy to work on and maintain, and you get a choice of different types of materials for the roof. The following four roofing materials are ideal for a flat roof: Built-Up Roof A built-up roof (BUR), also called a tar roof, is made up of layers of asphalt felt. On top of these asphalt layers, you will find a layer of liquid asphalt or coal tar, hence the name.