Roof Valley Leaking

Roof valley leaks roof valleys are created wherever two roof surfaces intersect to form a shallow v shape.

Roof valley leaking.

They are common on both hip and gable roofs. A flashing is a transitional roofing material that connects the roof material to some other building material or to another part of the roof. Although professional roofers take great care to properly install roof valleys they can be susceptible to roof leaks. A roof valley is very prone to leaks especially if you have an older roof.

In either situation the leaking roof valley can be fixed by removing affected shingles and structural elements and upgrading your roof s flashing. If your ceiling has a plastic vapor barrier between the drywall and the attic insulation push the insulation aside and look for flow stains on the plastic. Some roof leaks are tough to locate. Roof valleys carry a lot of water.

Most shingle installers will use a thick 30 lb paper as a base for the valley. Sometimes the water shows up at a ceiling spot distant from the leak. Most roofers that install shingles will not have rubber membranes with them to do such areas. And you can tar it but it s a real stop gap band aid like measure.

The reason why the roof valley is such a sensitive area has to do with all the rainwater and or melting snow that accumulates and flows through the valley on its way into the gutters. And damaged flashing is behind most roof leaks. Valley areas are prone to leak due to the lack of using proper materials. Valleys can be especially troublesome because they carry a lot of water during heavy rain.

Most roofers that do shingles will use a heavy base paper instead of a rubber membrane. Roof valley leaks valleys in your roof are locations where two roof planes intersect and form a v shaped valley that runs down a slope of your roof. The right thing to do here is to pull a valley basically pull a valley apart and rebuild it.