Roofing Valley Techniques

As another benefit to the roofing professional open valleys are sometimes used to easily bridge the gap between roof faces of vastly different pitches.

Roofing valley techniques.

A roof valley is where two roof surfaces come together such as in the inside corner of a roof on an l shaped building. With a closed cut valley there s no need to shingle the two roof planes at the same time. For this article i mocked up a section of roof to show four ways to shingle valleys. With asphalt shingles this area can be covered by interweaving the shingles at this juncture but this is somewhat complicated.

Many roofers cut the shingles across because they say it s safer. Check out these tips for keeping a roof maintained and preventing mold in a home. A valley is where the intersection of two roofs comes together. When two roof planes meet at an inside corner a valley is created.

Plus cutting the closed cut valley shingles can happen after the rest of the roof is shingled. It is also called the ridge which is again where two roofs meet at the top. In this video i show you how i do the valleys on a shingle roof. Tessaro also says that the open method allows for faster replacement and repair than the other techniques of shingling a roof valley.

Closed cut valley even if i work toward the valley with three tab shingles cut valleys are faster than woven valleys hands down. Roof valley repair techniques fix problems in this critical seam area. Because valleys collect and channel a greater volume of water than a single roof plane i always make an extra effort to design and build them as watertight as possible. A bad roof can be a mold generator.