Fixing A Leaky Roof Valley

In order to lay the flashing the shingles on the roof will have to be removed.

Fixing a leaky roof valley.

Step 2 remove the shingles. The sealants and roof pitch used can crack and chip away over time. Find them locally at hardware stores or home centers improved attic insulation and ventilation are usually the best ways to prevent ice dams. In other cases water can become trapped under shingles which have been overlaid to create the valley trough.

Repairing a metal roof seam with turbo poly seal is simple and it is a do it yourself p. 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 your roof valley leak is an old repair gone bad consider having a professional repair the leak properly. This video shows the full repair from removing leaded va.

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. This is where two parts of the roof join. Sometimes an older home s roof is more prone to leaking in the roof valleys because of old repairs.

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. How much it costs to repair or replace a roof valley will depend on what it s made from. Check the entire roof valley carefully to locate the source of these problems. The valley flashing laid over the joint where the two roofs meet should overlap the step flashing at least 2 in.

Roof valleys are prone to leaking and are a well known weak spot on older roofs. 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.