Roof Plumbing and Flashing

Roof Plumbing & Flashing

Roof Plumbing and Flashing

Roof plumbing is the metalwork side of a roof: the flashings, valleys, box gutters, downpipes and cappings that direct water off the building. It is the part of the roof most likely to fail, because it is where different materials and different planes meet.

Wherever a roof changes direction or meets something else, there is a join, and every join is a potential leak. Valleys collect the most water on the roof. Box gutters carry it in a confined channel. Flashings seal against walls, chimneys and skylights. When these are wrong, the roof surface itself can be perfect and the building still leaks.

• FlashingsWall, chimney, skylight and penetration flashings replaced or resealed.
• ValleysCorroded valley irons replaced, the most common failure point on an older tiled roof.
• Box guttersRepaired or replaced, including overflow provision.
• Downpipes and rainheadsSized, connected and discharged so the water actually gets away from the building.