What is 3ply roof?

A 3-ply roof refers to a roofing system composed of three distinct layers, typically used in built-up roofing (BUR) applications. This system usually includes a base sheet, a reinforcing layer, and a top layer, often made from materials like asphalt or modified bitumen. The multiple layers provide enhanced durability, waterproofing, and protection against environmental elements. 3-ply roofs are often favored for their longevity and ability to withstand heavy foot traffic and extreme weather conditions.