A tar and gravel roof, also known as a built-up roof (BUR), is a common type of flat roofing system used in commercial and residential buildings. It consists of multiple layers of tar or asphalt, reinforced with fiberglass or organic felt, and finished with a layer of gravel. The gravel protects the roof from UV rays, adds weight to prevent wind damage, and provides durability. Visit: https://managemyroof.com/tar-and-gravel-roof/