Flashing A Metal Roof Valley

Whether for slate shingle or metal roofing valley flashing adds detail and helps to direct water.

Flashing a metal roof valley.

These items can be fabricated in many different profiles. Fasteners placed in the exposed center area. Properly sized and installed valley flashing is key to channeling water safely off the roof. With a clean valley you can lay down some peel and stick roofing membrane.

Roof mastic applied along sides of valley flashing. The top joinery of both valleys when they meet on the same plane of roof is shown here. Failure to extend the entire width of the metal valley flashing beyond the eave of the roof. 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. Galvanized steel aluminum and copper can all be used. Up to 5 3 4 in. W valley flashing protects the critical area of your roof where two slopes come together to form a valley.

Punctures in the center of the valley. This flashing provides protection for pipes cables conduits and wires. Closed cut valley fully replaced with new metal valley flashing. Avoid the following common errors.

When properly installed w valley flashing will reliably channel run off water down the roof and into the gutter. As the asphalt shingles are installed over the roof deck the shingles are extended into the valley. This adjustable rubber pipe flashing for metal roofing this adjustable rubber pipe flashing for metal roofing accommodates roof penetrations from 1 4 in. The soft aluminum base conforms to most metal roof panels.

Roof valley flashing metal for roofing installations products custom made to order. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing. Be sure to check local building codes to ensure you have the proper width for your application. Valleys are a very important part of a well designed roofing system.