VELUX Curb Mount Tile Roof Aluminum Flashing Kit for SkylightsECW flashing can be used with tile roofs (over 3 4 in. thickness) or high profile roofing materials with a pitch between 14 and 60 degrees ECW 2270 flashing is designed specifically to fit VELUX curb mounted2270 models with an outside curb width of 25 1 2 in. and maximum 73 1 2 in. length Designedto work in conjunction with a site built curb, and the ECW cannot be installed on skylights from other manufacturers, or other VELUX skylight models not