If you re not sure what a roof valley looks like check out the photos on this page.
Fixing leaking roof valley.
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.
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.
This method of lead valley repair is proven to not only be fast and safe wit.
Roof valleys carry a lot of water.
In other cases water can become trapped under shingles which have been overlaid to create the valley trough.
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.
If leaks continue to occur from ice dams consider installing roof edge heating cables.
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.
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.
If your roof valley leak is an old repair gone bad consider having a professional repair the leak properly.
Roof valleys are created wherever two roof surfaces intersect to form a shallow v shape.
Roof valleys are prone to leaking and are a well known weak spot on older roofs.