A roof valley is very prone to leaks especially if you have an older roof.
Fix roof valley.
In other cases water can become trapped under shingles which have been overlaid to create the valley trough.
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.
Tessaro also says that the open method allows for faster replacement and repair than the other techniques of shingling a roof valley.
Roof valleys are troughs that discard runoff water where two sections of sloped roof meet.
How to repair valleys on a roof.
Roof valleys are prone to leaking and are a well known weak spot on older roofs.
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 reason why the roof valley is such a sensitive area has to do with all the rainwater and or melting snow that accumulates and flows through the valley on its way into the gutters.
As another benefit to the roofing professional open valleys are sometimes used to easily bridge the gap between roof faces of vastly different pitches.
Sometimes the water shows up at a ceiling spot distant from the leak.
If your ceiling has a plastic vapor barrier between the drywall and the attic insulation push the insulation aside and look for flow stains on the plastic often water runs to openings in the vapor barrier such as at ceiling light fixtures.
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.
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.
If you re not sure what a roof valley looks like check out the photos on this page.