Fixing A Leaky Roof Valley

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.
Fixing a leaky roof valley. Step 2 remove the shingles. Check the entire roof valley carefully to locate the source of these problems. The sealants and roof pitch used can crack and chip away over time. 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. This video shows the traditional and best way to repair a lead valley on a roof. If you re not sure what a roof valley looks like check out the photos on this page. 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. This video shows the full repair from removing leaded va. If leaks continue to occur from ice dams consider installing roof edge heating cables. Sometimes an older home s roof is more prone to leaking in the roof valleys because of old repairs.
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. In other cases water can become trapped under shingles which have been overlaid to create the valley trough. 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.
If your roof valley leak is an old repair gone bad consider having a professional repair the leak properly. If you have a roof leak it may well be through the valley.