Plana V is a range of glassfibre based torch-on underlays, coated with a high quality polymer modified APP bitumen coating. Plana V torch-on membranes provide reliable and effective flat roof waterproofing, combining the qualities of excellent performance, good handling characteristics and economy. Plana V membranes exhibit excellent dimensional and stability, making them suitable as part of a built-up system over a fully supported and suitably prepared surface.