Icopal HT180 Sand Underlay 20m 10001144 10001144

This bitumen-based sanded underlay comes in a 20m roll and is designed for use in flat roofing applications. Its polyester reinforcement enhances flexibility and ease of handling on site, making it suitable for both new and remedial projects.

The underlay is typically installed as the base or intermediate layer within a multi-layer roofing system, often applied by torch-on or other appropriate methods. Used beneath a cap sheet, it helps protect the roofing structure from moisture and supports effective long-term roof build-up.