Which method is NOT used in the installation of modified bitumen roofing?

The single-layer application is not typically used in the installation of modified bitumen roofing because this type of roofing is generally installed in multiple layers to ensure greater durability, waterproofing, and overall performance. Modified bitumen roofing systems are designed to provide enhanced protection against the elements, and their multi-layer design contributes to that effectiveness.

In practice, hot asphalt application, using cold-applied adhesives, and self-adhered sheets are common methods utilized in modified bitumen roofing installations. Hot asphalt application provides strong adhesion and reliable waterproofing, while cold-applied adhesives allow for safer installations without the need for heat. Self-adhered sheets offer ease of installation with excellent bonding properties. Each of these methods underscores the need for a robust and multi-faceted approach to roofing systems, contrasting sharply with the less effective single-layer application.