Closed Cut Valley Roof

I want my roof to be as leak proof and long lasting as possible.

Closed cut valley roof.

If you like exposed metal especially if you use copper you may want to pick open. 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 trying to decide on the best way to do the valleys open metal valleys or closed cut ones. When it comes to aesthetics that is all up to preference.

Plus cutting the closed cut valley shingles can happen after the rest of the roof is shingled. 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. A variation of closed cut valley. For a closed valley shingles are installed across the joint where planes intersect.

Roof is 5 12 slope with a couple of valleys. 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. Closed cut valley even if i work toward the valley with three tab shingles cut valleys are faster than woven valleys hands down. With an open valley a strip of metal will be visible on the roof wherever two.

One variant of the closed cut valley is the california valley also called long island valley and new jersey valley. The shingles are then cut out of the valley area opening the surface of the valley lining to water run off and the environment. As for cost closed cut valleys are the way to go. 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.

I m in a mixed humid climate zone 4a. With each new course roofing shingles continue up the valley. If you prefer a concealed valley lining and want your roof to blend together choose the closed valley. A chalk line is then used to strike a line from the top of the valley to the bottom of the valley.

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. With a closed cut valley there s no need to shingle the two roof planes at the same time.