The open woven and closed cut methods are demonstrated.
Woven roof valley installation.
Only nail at the edges with only enough nails to.
To secure the roof valley flashing nail it down carefully.
All of the shingle rows will need to be lined up correctly.
Valleys are a prime leak area so it s important to be careful.
A woven valley is one method of installation for asphalt shingles at a valley where two intersecting roof slopes meet see featured photo above.
Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys.
It is a method where the valley is completed by overlapping and weaving the shingle courses rather than cutting the shingles back to form a trough lined with a sheet metal flashing see figure wv 1.
Ensure ice and water protector has been installed along the valley first.
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.
Pros of woven valley shingle installations.
Nail the shingles 5 cm back.
Then starting at the base of the.