Shingle Roof Valley Installation

The open woven and closed cut methods are demonstrated.

Shingle roof valley installation.

Snipping off the corners of. 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. Most metal shingles will be attached to the roof using metal shingle. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps.

If you ve chosen closed valleys they are completed as shingle courses approach and run through the valley. Recommended procedures of basic valley flashing installation. Place a piece of sheet metal under the shingles to make sure you will not damage the flashing. Then starting at the base of the.

Install an underlayment centered in the roof valley. Only nail at the edges with only enough nails to. Then install a non corrosive metal valley flashing of 24 minimum width lap successive sheets of metal flashing a minimum of 12 inches and seal laps. Some roofers cut the shingles parallel to the flashing s center ridge.

Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. The most common closed valley is a closed cut valley where shingles are installed on the entire roof area on one side of the valley first with each shingle course extending at least 12 through the valley centerline. How to do it determine cuts. This video demonstrates the proper installation technique for installing roofing valleys.

Others start with a 3 inch wide.