Woven Closed Valley Roof

All of the shingle rows will need to be lined up correctly.

Woven closed valley roof.

Here are diagrams of each style valley style. Alternatives for the closed cut valley installation are the woven metal open cut and long island installation. Shingles are overlapped across the valley on alternative slopes. For a closed valley shingles are installed across the joint where planes intersect.

When it comes to your closed valley design there are a few options. Woven closed cut and open. This might lead to annoying leaks in heavy rains or at the very least a damaged roof underlayment. A woven valley shingle installation is one where the shingles from both sides of the roof valley extend over the valley and weave together overlapping courses alternately.

We don t normally offer this line although it is available. There are two common methods for completing the flashing of a valley in a shingle roof system. There is a variation on the closed cut referred to as a california valley. Shingles are first installed on the side of the valley with a lower slope.

There are three common valley details. Further they wear out faster than a metal valley. The three basic valley types for asphalt shingle roof systems are woven open and closed cut. Essentially there are three main ways to shingle a roof valley.

There are 4 main kinds of valley installation methods to explore for your roof. Pros of woven valley shingle installations. Here we have a laminated shingle roof that has been installed with a woven valley detail. According to long time iko sales representative jeff tessaro closed valleys for residential construction have been popular since he was a roofing contractor in the late 90 s.

To understand what makes a valley either closed or open it is important to understand how a valley is constructed. In addition there are recognized options for open and closed cut valleys commonly referred to as california open valleys and california closed cut valleys open valley. The only type of valley that is unacceptable is the woven valley. In this video we explore the california cut woven closed cut and open metal.

These disadvantages are neutralized by their simplicity of installation. There are various techniques you ll need to know for each type of installation which will be explained in this blog. Woven valleys should only be used with strip shingles. The shingles act as the valley lining and protect the surface from water runoff.

Certainteed recommends closed valley for their lifetime landmarks and 25yr xt lines. Closed valleys or open valleys. Before you decide how to shingle a roof valley you will need to consider your materials the climate and the desired look of the roof. With each new course roofing shingles continue up the valley.

One of the details that varies between homes is the method of flashing the valley areas of the roof.