What is a roof built?

The

roof (BUR) is the most used material to cover flat roof surfaces. These roofs have been used for more than a century and are made of several layers of reinforced fabric connected by binding agent or bitumen. Each layer of fabric is known as layer and a higher number of layers is associated with long -lasting and durable roofs.

There are two main types of built -up roofs and each classified by a binding agent or bitumen used. Coal tar is more durable of two bitumen products and is made using by -products of coal production. Asphalt is less durable, but often cheaper and is a by -product of oil production. The use of these two bitumens can be limited depending on regional availability and environmental laws. Two layers of building paper or rubber membranes are nailed to the surface, so ro.efectively waterproof before adding any other Bur. In addition, the installation staff will alternate the roof layers PLSti or glass fiber with mopped-on asphalt or coal tar. Finally, the entire surface is covered with a protective top, such as gravel or clear glaze. The average built -up roof will have three to five layers, without the driving layers of the membrane.

primary advantages associated with built -in roof are low cost of materials and installation, especially compared to alternative roof products such as metal or rubber. Built roofs are also durable and low maintenance and are able to withstand wind or fire damage. They can also be easily repaired and repaired as needed. Because these roofs are used a double layer of waterproofing, the layers themselves are redundant and help create a reliable and waterproof installation.

and many advantages should also consider the potential disadvantages of the roof construction. Materials used to construct a built -up roof are susceptibleto damage the sun and water. Long -term exposure to these elements can cause small cracks to form on the surface, eventually causing roof failure. While the built roof is known for its resistance, it is unlikely that it will take so many alternative materials. Bitmens used for the construction of a built -up roof tends to produce an unpleasant odor during installation and can release toxic fumes into the atmosphere.