Flashing A Metal Roof Valley

Roof mastic applied along sides of valley flashing.

Flashing a metal roof valley.

Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing. These items can be fabricated in many different profiles. Galvanized steel aluminum and copper can all be used. When properly installed w valley flashing will reliably channel run off water down the roof and into the gutter.

Avoid the following common errors. Valleys are a very important part of a well designed roofing system. Roof valley flashing metal for roofing installations products custom made to order. Valley flashing is metal or sometimes peel and stick material that protects an important area on the roof where two slopes come together to form a valley.

I have my valley custom made with water trough to help with leaking b. Fasteners placed in the exposed center area. The soft aluminum base conforms to most metal roof panels. This adjustable rubber pipe flashing for metal roofing this adjustable rubber pipe flashing for metal roofing accommodates roof penetrations from 1 4 in.

The top joinery of both valleys when they meet on the same plane of roof is shown here. Fold the top over the roof ridge and cut the bottom along the drip edge metal. Failure to extend the entire width of the metal valley flashing beyond the eave of the roof. Punctures in the center of the valley.

Up to 5 3 4 in. This flashing provides protection for pipes cables conduits and wires. With a clean valley you can lay down some peel and stick roofing membrane. As the asphalt shingles are installed over the roof deck the shingles are extended into the valley.

Closed cut valley fully replaced with new metal valley flashing. W valley flashing protects the critical area of your roof where two slopes come together to form a valley. Whether for slate shingle or metal roofing valley flashing adds detail and helps to direct water. This valley flashing material can be manufactured from any metal that will resist the effects of weather acid rain and other contaminants.