Roof Metal Or Shingle Valleys

Whether for slate shingle or metal roofing valley flashing adds detail and helps to direct water.

Roof metal or shingle valleys.

The valley is one of the most critical details on the roof because it collects a lot of water. For an open valley a sheet of metal usually steel sometimes copper is fastened to the roof deck. In addition it is important to avoid nailing the shingles through the valley metal. Roofing shingles are installed then cut and sealed where they overlap the metal channel.

In most cases a metal valley will add durability and longevity to any roofing system. It is made of galvanized steel and will not rust. Some homeowners prefer the consistent look that a woven valley provides. When all roof components are performing well a roof s lifespan is more likely to be maximized.

These items can be fabricated in many different profiles. Unlikely but it can. Woven closed cut and open. To achieve a woven valley installation a roofing professional lays shingles in the valley and weaves them together.

Woven valley shingle installation. Metal valley will last forever. As a single component in the entire system a metal valley effectively protects other parts of your roof including shingles roof felt and the roof deck. However the hole that is created from the nail may eventually leak.

Essentially there are three main ways to shingle a roof valley. The three methods to shingle a roof valley. An improper installed valley can be the cause of serious leaks. The shingles are then cut out of the valley area opening the surface of the valley lining to water run off and the environment.

Shingles in the valley will not last forever and will have to be replaces during a re roof project but the nails will not leak. A chalk line is then used to strike a line from the top of the valley to the bottom of the valley. With an open valley a strip of metal will be visible on the roof wherever two opposing roof planes meet.