What material is rolled roofing typically saturated with?

Rolled roofing is typically saturated with asphalt. This is because asphalt provides the necessary waterproofing and durability for the roofing material, making it a common choice for flat and low-slope roofs. The asphalt serves as a binder and helps to protect the roofing from the elements, including water, UV radiation, and temperature fluctuations. The saturation of rolled roofing with asphalt allows it to effectively manage moisture, reducing the risk of leaks and other water-related issues.

While bitumen is a component of asphalt and may sometimes be confused with it, it is important to note that the term "asphalt" encompasses a broader range of materials and applications. Waterproof compounds are often used in various construction materials, but they do not specifically refer to the saturation used in rolled roofing. Concrete is not used as a saturating material in rolled roofing since it is typically much heavier and used in different types of construction.