Closed Cut Valley Roof

If you prefer a concealed valley lining and want your roof to blend together choose the closed valley.

Closed cut valley roof.

One variant of the closed cut valley is the california valley also called long island valley and new jersey valley. With an open valley a strip of metal will be visible on the roof wherever two. Roof is 5 12 slope with a couple of valleys. A chalk line is then used to strike a line from the top of the valley to the bottom of the valley.

I m trying to decide on the best way to do the valleys open metal valleys or closed cut ones. The shingles are then cut out of the valley area opening the surface of the valley lining to water run off and the environment. If you like exposed metal especially if you use copper you may want to pick open. What is a closed valley roof.

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. When it comes to aesthetics that is all up to preference. With each new course roofing shingles continue up the valley.

I m in a mixed humid climate zone 4a. A variation of closed cut valley. I begin the second side. 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.

For this method the last shingles on the cut side of a cut valley are actually installed sideways so they run up and down the valley. 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. 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. With a closed cut valley there s no need to shingle the two roof planes at the same time.

Closed cut valley even if i work toward the valley with three tab shingles cut valleys are faster than woven valleys hands down. As for cost closed cut valleys are the way to go. Can t afford standing seam metal though so it will be mid grade architectural asphalt shingles installed with meticulous detail.