Fixing A Leaky Roof Valley

This video shows the full repair from removing leaded va.

Fixing a leaky roof valley.

If you have a roof leak it may well be through the valley. This is where two parts of the roof join. Find them locally at hardware stores or home centers improved attic insulation and ventilation are usually the best ways to prevent ice dams. The valley flashing laid over the joint where the two roofs meet should overlap the step flashing at least 2 in.

The sealants and roof pitch used can crack and chip away over time. In order to lay the flashing the shingles on the roof will have to be removed. If you re not sure what a roof valley looks like check out the photos on this page. 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.

How much it costs to repair or replace a roof valley will depend on what it s made from. 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. Repairing a metal roof seam with turbo poly seal is simple and it is a do it yourself p. If leaks continue to occur from ice dams consider installing roof edge heating cables.

In other cases water can become trapped under shingles which have been overlaid to create the valley trough. This video shows the traditional and best way to repair a lead valley on a roof. If your roof valley leak is an old repair gone bad consider having a professional repair the leak properly. Sometimes an older home s roof is more prone to leaking in the roof valleys because of old repairs.

Roof valleys are prone to leaking and are a well known weak spot on older roofs. Check the entire roof valley carefully to locate the source of these problems.