VELUX ECL curb mount step flashing interweaves with shingles and other low-profile roofing materials to help provide proper water drainage. Includes an adhesive underlayment that provides an additional layer of water protection and prevents leaks. When paired with a VELUX curb mount skylight (model FCM, VCM, VCE, VCS) this flashing makes the skylight eligible for the VELUX 10-year installation warranty.