Roof Valley Leaking

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

Roof valley leaking.

A flashing is a transitional roofing material that connects the roof material to some other building material or to another part of the roof. Most shingle installers will use a thick 30 lb paper as a base for the valley. Many roof valley leaks are caused by roofing nails that have been poorly placed and are acting as a dripper feeding water through from the roof above. And you can tar it but it s a real stop gap band aid like measure.

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. Most roofers that install shingles will not have rubber membranes with them to do such areas. 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. Valleys can be especially troublesome because they carry a lot of water during heavy rain.

A roof valley is very prone to leaks especially if you have an older roof. Some roof leaks are tough to locate. The right thing to do here is to pull a valley basically pull a valley apart and rebuild it. Although professional roofers take great care to properly install roof valleys they can be susceptible to roof leaks.

They are common on both hip and gable roofs. And if they put a second layer of shingles on they brought it up the valley but they didn t replace the valley it s probably leaking and cracking and split. Often water runs to openings in the vapor barrier such as at ceiling light fixtures. Sometimes the water shows up at a ceiling spot distant from the leak.

Roof valleys carry a lot of water. And damaged flashing is behind most roof leaks. Most roofers that do shingles will use a heavy base paper instead of a rubber membrane.