Repairing Roof Valley Leak

Leaking roof valleys and how to fix them.

Repairing roof valley leak.

The valley flashing laid over the joint where the two roofs meet should overlap the step flashing at least 2 in. If that water doesn. 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. And the valleys are leaking real bad and i wondered if there s some way to repair that without having to tear the whole roof off again.

Roof valleys are prone to leaking and are a well known weak spot on older roofs. Just like in nature a valley on a roof is designed to collect water. 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.

Roof valleys are created wherever two roof surfaces intersect to form a shallow v shape. 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 sealants and roof pitch used can crack and chip away over time. A crack in the valley can cause major damage and i.

Sometimes an older home s roof is more prone to leaking in the roof valleys because of old repairs. If you re not sure what a roof valley looks like check out the photos on this page. 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 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. If leaks continue to occur from ice dams consider installing roof edge heating cables. Toronto s roof repair specialists http www mrroofrepair ca show the cause of a major interior roof leak. Because roof valleys function as a drain on the roof they receive as disproportionate volume of water every time it rains.

How much it costs to repair or replace a roof valley will depend on what it s made from. So the valleys which is where the two planes of the roof come together in the v like shape for those that have no clue as to what we re talking about these.