Leak Roof Valley

Start low soaking the area just above where the leak appears in the house.

Leak roof valley.

Roof valley leaks roof valleys are created wherever two roof surfaces intersect to form a shallow v shape. Finding the actual spot where the roof leaks is difficult because water can enter the roof in one place and run down to another before it starts soaking into the ceiling. 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. Cut sheet metal patch about 2 inches bigger all around than hole.

The goal is to find the leak before the entire roof goes bad. Spread thick coating of roof cement on damaged area and press patch into place bending it to shape of valley. Closed valleys may have a tendency if not constructed properly to channel water under the shingles laid over the bottom layer of shingles. Clean surface of valley with wire brush.

For example soak the downhill side of a chimney first then each side then the top on both sides. You know the roof is bad if shingles are missing or obviously damaged or when water stains the ceiling or walls. A valley is present where the addition roof intersects the main house roof. And you can tar it but it s a real stop gap band aid like measure.

And damaged flashing is behind most roof leaks. If a leak is difficult to find enlist a helper and go up on the roof with a garden hose. A roof valley is very prone to leaks especially if you have an older roof. Isolate areas when you run the hose.

The right thing to do here is to pull a valley basically pull a valley apart and rebuild it. However open valleys may be susceptible to water back up along the top of the cut off shingles in the valley if not properly trimmed potentially causing roof leaks. 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. In either situation the leaking roof valley can be fixed by removing affected shingles and structural elements and upgrading your roof s flashing.

We have a valley on the other side of the roof that was part of the original house construction. If you have a roof valley in your home then you may find that your lead valley starts to leak or even to allow water to run onto the ceiling of the floor below. Although professional roofers take great care to properly install roof valleys they can be susceptible to roof leaks. If you find that this is a problem then you will need to repair your roof valley before anything serious happens such as plaster loss or even major water damage.

Roof valleys carry a lot of water.