Flashing
Those parts of roofs where water runoff is heavy or two opposing surfaces meet are particularly prone to water damage and leaks. These areas include roof valleys, the intersection between a dormer wall and the roof surface, and chimney and roof window perimeters. Such areas require the extra protection of a flashing.
ABC Depot stock a wide range of flashing tapes and primer as well as VELUX, FAKRO and Keylite roof window flashings.