A single-ply membrane roof is typically constructed from a thin layer of polymeric material, such as PVC, PET, EPDM, or PTFE, sandwiched between two layers of felt paper. This construction creates a lightweight, durable roofing system that requires minimal maintenance. 

 

The benefits of single-ply membranes are numerous, including durability, longevity, resistance to UV degradation and fire damage, and easy installation. They are also lighter, cheaper, and quicker to install, making them ideal for new builds or where there is limited access. Their flexibility allows them to be used on steep pitches, while their weight reduces wind uplift forces. In addition, their quick installation speed means less disruption to everyday life during building work.