Woven Closed Valley Roof

With each new course roofing shingles continue up the valley.

Woven closed valley roof.

There are various techniques you ll need to know for each type of installation which will be explained in this blog. The three basic valley types for asphalt shingle roof systems are woven open and closed cut. The only type of valley that is unacceptable is the woven valley. Essentially there are three main ways to shingle a roof valley.

Further they wear out faster than a metal valley. 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. 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. Here we have a laminated shingle roof that has been installed with a woven valley detail.

Woven open and closed cut. There are 4 main kinds of valley installation methods to explore for your roof. It is always a good idea to check with the manufacturer or a certified installer of the product such as ourselves. There is a variation on the closed cut referred to as a california valley.

Closed valleys or open valleys. 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. 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.

Alternatives for the closed cut valley installation are the woven metal open cut and long island installation. 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. Pros of woven valley shingle installations. One of the details that varies between homes is the method of flashing the valley areas of the roof.

There are three common valley details. Certainteed recommends closed valley for their lifetime landmarks and 25yr xt lines. Woven valleys should only be used with strip shingles. All of the shingle rows will need to be lined up correctly.

There are two common methods for completing the flashing of a valley in a shingle roof system. Woven closed cut and open. We don t normally offer this line although it is available. Here are diagrams of each style valley style.

Shingles are first installed on the side of the valley with a lower slope. These disadvantages are neutralized by their simplicity of installation. To understand what makes a valley either closed or open it is important to understand how a valley is constructed. Shingles are overlapped across the valley on alternative slopes.

In this video we explore the california cut woven closed cut and open metal.