As shingles are installed on the adjoining roof area the end of each course of shingles is trimmed cut 2 back of.
How to shingle a roof valley video.
Gaf mastering the roof chapter 12 this video demonstrates the proper installation technique for installing roofing valleys.
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.
When you reach the valley lay the shingles over the valley and trim the edges to the chalk line.
The open woven and closed cut methods are demonstrated.
Asphalt shingles roofing how to install valley by roofrepair101 more about roof installation at.
Begin to install roof shingles on either roof face.
This video demonstrates the proper installation technique for installing roofing valleys.
Nail down each valley shingle at least two inches 50 mm back from the chalk line.
The open woven and closed cut methods are demonstrated.
Valleys are a prime leak area so it s important to be careful.
Over driving nails is always a.