To achieve a woven valley installation a roofing professional lays shingles in the valley and weaves them together.
Roof valley shingle weave.
There are three common valley details.
Here are diagrams of each style valley style.
Woven valleys should only be used with strip shingles.
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.
All of the shingle rows will need to be lined up correctly.
Woven open and closed cut.
But if the shingles are not laid in the valley properly a woven valley may not lay flat creating bumps and detracting from the overall look of the roof.
There is a variation on the closed cut referred to as a california valley.
Some homeowners prefer the consistent look that a woven valley provides.
Some homeowners prefer the consistent look that a woven valley provides.