FLASHING / CAPPING
CAPPING is required whenever two roofing slopes meet at an elevation. This is because the joint poses a significant vulnerability to water penetration, therefore, it is crucial to install an effective capping method to prevent a catastrophic failure of your roofing system. Capping, or flashing, forms the intersections and termination of roofing systems and surfaces to thwart the penetration of water into the roofing system. The most common locations for roof flashing are at valleys, chimneys, roof penetrations, eaves, rakes, skylights, ridges and at roof-to-wall intersections.