Marvec CS corrugated PVC sheet is an economical rooflight and sidelight glazing material ideal for use in cool temperate climates. It provides superior weather resistance, light transmission, fire performance and excellent durability. Light in weight, Marvec CS is easy to handle and install. A wide range of profiles are available in 3 performance grades for a range of applications: Premium, High Impact and Standard. Marvec CS Premium – UV protection and 10 year warranty; Marvec CS High Impact – 10 times more impact resistance than Marvec CS Premium; Marvec CS Standard – economy sheet without UV protection.