Bitumen roofing refers to a type of roofing material that is made from asphalt or coal tar pitch. It is commonly used on low-slope or flat roofs in both residential and commercial buildings.
Bitumen roofing is typically installed in multiple layers that are adhered to the roof deck using heat or adhesive. The layers consist of a base sheet, one or more intermediate layers, and typically covered with mineral granules to protect the roofing material from UV radiation and other environmental factors. Bitumen roofing is known for its durability and ability to withstand weather conditions, including high winds, heavy rain, and snow.
However, bitumen roofing can be heavy and may require additional structural support to be added to the roof deck. It can also be more difficult to install and maintain compared to some other roofing materials.