Metal Roof Valley Flashing Detail

I have my valley custom made with water trough to help with leaking b.

Metal roof valley flashing detail.

This valley flashing material can be manufactured from any metal that will resist the effects of weather acid rain and other contaminants. Riverside provides roof valley flashing for general contractors roofers and do it yourself home owners. With a clean valley you can lay down some peel and stick roofing membrane. Drip edge metal valley flashing dormer chimney and kick out flashing shed water away from the connections between roofs walls chimneys and other building assemblies this collection of 18 articles animations and videos identifies the critical roof flashing areas illustrates durable roof flashing details and shows how to flash roofs.

Install an underlayment centered in the roof valley. Galvanized steel aluminum and copper can all be used. Recommended procedures of basic valley flashing installation. 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.

That flashing is left exposed so the roof has visible lines of metal running down the valley. Some homeowners do not like the look of open valleys while others feel the metal accentuates the roof s shape particularly if copper or painted flashing is used. As the asphalt shingles are installed over the roof deck the shingles are extended into the valley. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing.

The top joinery of both valleys when they meet on the same plane of roof is shown here. Lile points out that valleys lined with roll roofing are not as durable. Valley flashings are custom fabricated to any measurements and angles and usually measure 10 in length but can also be we can also match any profile. Nrca lile recommends that roof valley flashing metal for open roof valleys should be 26 gauge 0 45mm galvanized steel or equivalent noncorrosive nonstaining metal.

Flashing is installed to surround roof features such as vents chimneys and skylights. Special pricing available for large quantities. An open valley relies on metal flashing for protection.