The woven valley shingle installation method does not call for roofing cement relying instead on the weave pattern to protect from water infiltration.
Roof valley shingle weave.
Closed valleys or open valleys.
Here we have a laminated shingle roof that has been installed with a woven valley detail.
One of the details that varies between homes is the method of flashing the valley areas of the roof.
Water has a small chance of even getting up under the woven valley shingles even though it flows in either direction.
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.
Weaving a shingle valley by dunn contracting 727 410 5717 james dunn.
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.
Pros of woven valley shingle installations.
Woven valleys should only be used with strip shingles.