Roof Metal Or Shingle Valleys

However the hole that is created from the nail may eventually leak.

Roof metal or shingle valleys.

To achieve a woven valley installation a roofing professional lays shingles in the valley and weaves them together. Essentially there are three main ways to shingle a roof valley. When all roof components are performing well a roof s lifespan is more likely to be maximized. The shingles are then cut out of the valley area opening the surface of the valley lining to water run off and the environment.

Woven closed cut and open. Valleys are a very important part of a well designed roofing system. Unlikely but it can. Metal valley will last forever.

Woven valley shingle installation. A chalk line is then used to strike a line from the top of the valley to the bottom of the valley. The valley is one of the most critical details on the roof because it collects a lot of water. For example in metal roofing systems valleys are commonly fabricated with hems but can also be fabricated without them in which case they could still be used for metal roofing or any other type of roofing.

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. Whether for slate shingle or metal roofing valley flashing adds detail and helps to direct water. These items can be fabricated in many different profiles. Roofing shingles are installed then cut and sealed where they overlap the metal channel.

Some homeowners prefer the consistent look that a woven valley provides. An improper installed valley can be the cause of serious leaks. With an open valley a strip of metal will be visible on the roof wherever two opposing roof planes meet. For an open valley a sheet of metal usually steel sometimes copper is fastened to the roof deck.

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. In addition it is important to avoid nailing the shingles through the valley metal. The three methods to shingle a roof valley.