Open Valley Roof Installation

This video demonstrates the proper installation technique for installing roofing valleys.

Open valley roof installation.

In this video i show you how i do the valleys on a shingle roof. 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. Recommended procedures of basic valley flashing installation. The open woven and closed cut methods are demonstrated.

Snipping off the corners of. Fold the top over the roof ridge and cut the bottom along the drip edge metal. This allows water to fall from the higher slope to the lower slope and prevents it from going under the shingles to the roof deck. During its installation process the open valley shingle utilizes the w metal flashing which helps in preventing the water from rushing down.

First clean the debris out of the valley including sawdust nails and whatever else is in there. When compared to a closed valley and open valley adds an additional layer of lining. Install an underlayment centered in the roof valley. How to do it determine cuts.

Pros of open valley shingle installation. Others start with a 3 inch wide. Ensure ice and water protector has been installed along the valley first. Then starting at the base of the.

Only nail at the edges with only enough nails to. To secure the roof valley flashing nail it down carefully. No one of this affirmat. Some roofers cut the shingles parallel to the flashing s center ridge.

Install synthetic roofing. Shingles are cut on the higher slope in a straight line through the valley. Many roofers cut the shingles across because they say it s safer.