What describes the method of torch-application for modified bitumen membrane sheets?

The method of torch-application for modified bitumen membrane sheets involves directly applying the membrane to a substrate, which can include various surfaces such as a wood deck. This technique utilizes a torch to heat the underside of the modified bitumen membrane, allowing it to adhere firmly to the underlying material by melting the bitumen. Because of this direct application, the membrane creates a strong bond with the deck, ensuring proper waterproofing and durability.

While other choices may seem relevant to roofing, they either describe different applications or requirements that don't encompass the torch method accurately. For instance, applying over a membrane does not represent the direct application processes that distinguish torch-applied methods, and special adhesives are not required because the torching process itself suffices to provide the necessary adhesion for the membrane. Thus, recognizing that the correct application occurs directly on a wood deck highlights the uniqueness and effectiveness of the torch-application technique in roofing.