What is another term for two-ply roll roofing?

Two-ply roll roofing is often referred to as wide-selvage roofing. This term is used to describe the method of installing roofing materials that are typically wider than conventional single-ply options. Wide-selvage roofing consists of two layers of material, which provides extra durability and resistance to weather elements when compared to single-layer roofing options. The two layers work together to create a more robust barrier, enhancing the roofing system's ability to withstand various conditions, such as rain, wind, and UV exposure.

The option of bi-layer, while it may seem related, is not a commonly used term for this type of roofing and can lead to confusion with other roofing systems. Built-up roofing refers to a different method that involves multiple layers and is not specifically associated with the two-ply roll roofing system. Hence, wide-selvage is the term that accurately describes the two-ply roll roofing situation, providing clarity and specificity in roofing terminology.