TIL-R Breathable Pitched Roof Underlay is a thermally bonded UV stabilised laminate incorporating a vapour permeable film. The choice available has been carefully designed to meet your standards of usability, quality and price, providing you with the right solution for the job.
The product resists penetration by liquid water yet allows the passage of water vapour.
Low vapour resistance – defined by BS 5250:2002 as a vapour permeable underlay and suitable for use in energy efficient non-ventilated cold pitched roof systems.