Fix A Leaking Roof Valley

If you re not sure what a roof valley looks like check out the photos on this page.

Fix a leaking roof valley.

Though roof valleys are com mon leak sites on shingle roofs it s typically fairly easy to fix these problems with a little know how. Roof valleys if not installed correctly are one of the most leak prone areas on the roof. Roof valleys carry a lot of water. Sometimes an older home s roof is more prone to leaking in the roof valleys because of old repairs.

In other cases water can become trapped under shingles which have been overlaid to create the valley trough. This method of lead valley repair is proven to not only be fast and safe wit. Roof valleys are prone to leaking and are a well known weak spot on older roofs. Leaking roof identifying the cause of a leaking roof and how to repair storm damage to roofs.

Roof valleys are created wherever two roof surfaces intersect to form a shallow v shape. Step 2 remove the shingles. How much it costs to repair or replace a roof valley will depend on what it s made from. This project identifies some of the causes of leaking roofs including damage to ridge tile mortar damage to verge tile mortar damage to lead flashing around the chimney stack and how damage can occur in a roof valley.

The valley flashing laid over the joint where the two roofs meet should overlap the step flashing at least 2 in. Find them locally at hardware stores or home centers improved attic insulation and ventilation are usually the best ways to prevent ice dams. How to identify a leaking roof and fix it. If leaks continue to occur from ice dams consider installing roof edge heating cables.

This video shows the traditional and best way to repair a lead valley on a roof. Roof valleys are channels designed to drain runoff water and like any other part of your roof they can degrade over time with exposure to the elements. Because roof valleys function as a drain on the roof they receive as disproportionate volume of water every time it rains. Once the roof valley has begun to leak you will need to cover the valley with flashing in order to prevent a repeat of the problem.

Just like in nature a valley on a roof is designed to collect water. Although professional roofers take great care to properly install roof valleys they can be susceptible to roof leaks. The sealants and roof pitch used can crack and chip away over time. If your roof valley leak is an old repair gone bad consider having a professional repair the leak properly.