Valley Roof Flashing Installation

Install valley battens on both ends of the roof valley then attach first flashing 3 4 inches over the roof flange and another 3 4 inches over the fascia if any is present.

Valley roof flashing installation.

Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. Step 5 begin installation. Stop nailing 6 inches from the center. Many roofers cut the shingles across because they say it s safer.

Now nail this first flashing at both its far ends. Step 6 install the. Shingle the other side of the valley the same way. No one of this affirmat.

In this video i show you how i do the valleys on a shingle roof. Proper valley flashing installation isn t difficult to achieve. Before installing the flashing bring the shingles up to the vent pipe. Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles.

Flashing should be installed in all of the valleys. Even so a high percentage of valley flashings are not installed properly because the roof repair company does know the basics. Architectural shingle installation is especially critical in roof valleys where iko recommends an open valley installation. Drip edge metal valley flashing dormer chimney and kickout flashing are types of roof flashing that shed water away from the connections between roofs walls chimneys and other building assemblies.

In fact following a few basic installation procedures will typically achieve a reliable installation. Roof up to lower end of valley step flashing end shingles fitted and flashed against dormer under eaves practically all homes have circular vent pipes or ventilators projecting through the roof. Remember to caulk the underside of the flashing with a sealant. While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately.

Learn the three methods of shingling a roof valley the advantages and disadvantages of each how to choose valley flashing and how to shingle an open valley. The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. Then cut a hole in the shingle that will. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing.

Open valleys have metal flashing to protect this critical area of the roof.