What is a common method for installing roofs that use membranes?

The option that refers to torch application is a widely recognized method for installing roofing membranes, particularly those made of modified bitumen or torch-down systems. This technique involves using a torch to heat the underside of the membrane, which melts the asphalt and allows for it to adhere to the substrate or underlying layer. This creates a strong and watertight seal, making it a popular choice in both commercial and residential roofing projects.

Torch application is admired for its effectiveness in bonding the membrane, which enhances the durability and weather resistance of the roofing system. It also allows the installer to achieve a clean, seamless finish, reducing the likelihood of leaks over time.

Self-adhered installations, while effective and increasingly popular due to their ease of application and inherent safety (no open flames), do not involve heating the membrane and rely on adhesives. Similarly, mechanical fastening and high-temperature seams represent alternative methods, each with their specific applications and considerations, but they do not utilize the same process as torch application.