Some homeowners prefer the consistent look that a woven valley provides.
Shingle roof valley weave.
All of the shingle rows will need to be lined up correctly.
To shingle out of the valley with laminated shingles lay a shingle down as a gauge and mark the corner at the bottom left and top right of the roof.
To achieve a woven valley installation a roofing professional lays shingles in the valley and weaves them together.
However these shingles are not run entirely through the valley area but rather the center of the metal valley is left exposed.
I then move the shingle to the uppermost course on the roof plane line up the mark on the shingle with the valley center and again mark the corner.
Here we have a laminated shingle roof that has been installed with a woven valley detail.
In addition it is important to avoid nailing the shingles through the valley metal.
This is an incorrect installation of this type of roofing material and will be more prone to water intrusion and will void the manufacturer s warranty for this material.
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.
As the asphalt shingles are installed over the roof deck the shingles are extended into the valley.
But if the shingles are not laid properly in the valley a woven valley may not lay flat creating bumps and detracting from the overall look of the roof.
Some homeowners prefer the consistent look that a woven valley provides.
To achieve a woven valley installation a roofing professional lays shingles in the valley and weaves them together.
Roof installation how to shingle a valley hd by roofrepair101 more about roofing at.
Woven valleys should only be used with strip shingles.