Fixing Leaking Roof Valley

The sealants and roof pitch used can crack and chip away over time.

Fixing leaking roof valley.

If you re not sure what a roof valley looks like check out the photos on this page. In other cases water can become trapped under shingles which have been overlaid to create the valley trough. 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. The valley flashing laid over the joint where the two roofs meet should overlap the step flashing at least 2 in.

Roof valleys are created wherever two roof surfaces intersect to form a shallow v shape. 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. How much it costs to repair or replace a roof valley will depend on what it s made from. Roof valleys carry a lot of water.

This video shows the traditional and best way to repair a lead valley on a roof. If leaks continue to occur from ice dams consider installing roof edge heating cables. Roof valleys are prone to leaking and are a well known weak spot on older roofs. Find them locally at hardware stores or home centers improved attic insulation and ventilation are usually the best ways to prevent ice dams.

Although professional roofers take great care to properly install roof valleys they can be susceptible to roof leaks. 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. 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.