Metal Valley Shingle Roof

It is made of galvanized steel and will not rust.

Metal valley shingle roof. However the hole that is created from the nail may eventually leak. First clean the debris out of the valley including sawdust nails and whatever else is in there. Preparation of the valley with an underlayment is a critical part of your roof installation. The metal is usually pre painted to best complement the shingles color blend.

Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing. Shingle the other side of the valley the same way. A chalk line is then used to strike a line from the top of the valley to the bottom of the valley. Fold the top over the roof ridge and cut the bottom along the drip edge metal.

Install an underlayment centered in the roof valley. In most cases a metal valley will add durability and longevity to any roofing system. The shingles are then cut out of the valley area opening the surface of the valley lining to water run off and the environment. The open woven and closed cut methods are demonstrated.

The underlayment is an integral part of every valley and provides a waterproof base all valley installations require appropriate underlayment layers. Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. How to shingle a valley with architectural shingles. As a single component in the entire system a metal valley effectively protects other parts of your roof including shingles roof felt and the roof deck.

Stop nailing 6 inches from the center. With a clean valley you can lay down some peel and stick roofing membrane. Unlikely but it can. In addition it is important to avoid nailing the shingles through the valley metal.

This video demonstrates the proper installation technique for installing roofing valleys. Then starting at the base of the valley center your first piece of flashing in the valley. With an open valley a strip of metal will be visible on the roof wherever two opposing roof planes meet. For an open valley a sheet of metal usually steel sometimes copper is fastened to the roof deck.

Apply an approximately 3 inch width of asphalt roofing cement along the sides of flashing and embed shingles in mastic. Roof one side of the valley running the shingles across it. Metal valley will last forever. Roofing shingles are installed then cut and sealed where they overlap the metal channel.

When all roof components are performing well a roof s lifespan is more likely to be maximized. To secure the roof valley flashing nail it down carefully. 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.