Closed Cut Valley Roof

What is a closed valley roof.

Closed cut valley roof.

Roof is 5 12 slope with a couple of valleys. If you are looking to install shingles you might want to consider the closed cut valley method it is popular because the two roof planes do not need to be shingled at the same time. I m in a mixed humid climate zone 4a. If you prefer a concealed valley lining and want your roof to blend together choose the closed valley.

Closed cut valley even if i work toward the valley with three tab shingles cut valleys are faster than woven valleys hands down. A chalk line is then used to strike a line from the top of the valley to the bottom of the valley. According to long time iko sales representative jeff tessaro closed valleys for residential construction have been popular since he was a roofing contractor in the late 90 s. As for cost closed cut valleys are the way to go.

One variant of the closed cut valley is the california valley also called long island valley and new jersey valley. Then rather than cutting the shingles on the high volume roof plane a row of shingles is installed with the exposure edge facing the valley center. Plus cutting the closed cut valley shingles can happen after the rest of the roof is shingled. With an open valley a strip of metal will be visible on the roof wherever two.

I want my roof to be as leak proof and long lasting as possible. The shingles are then cut out of the valley area opening the surface of the valley lining to water run off and the environment. With a closed cut valley there s no need to shingle the two roof planes at the same time. I m trying to decide on the best way to do the valleys open metal valleys or closed cut ones.

Can t afford standing seam metal though so it will be mid grade architectural asphalt shingles installed with meticulous detail. In general the closed cut valley method implies stretching one side of the shingles beyond the valley while those on the other side are trimmed. A variation of closed cut valley. I begin the second side.

With each new course roofing shingles continue up the valley. It installs and looks almost the same as a regular cut valley where the shingles on the low volume roof plane are installed first and pass through the center of the valley by at least 12 in. When it comes to aesthetics that is all up to preference.