Roofing Closed Cut Valley

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Roofing closed cut valley.

From the ground it looks as though the shingles meet in a clean line in the center of the valley. Closed cut valleys also called closed valleys are installed quickly and have a cleaner sharper look than woven valleys. 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. Working on the smaller roof plane i set a shingle on the first course line.

One layer of shingles actually crosses the valley beneath the other. Shingling both a closed cut valley and a long island valley is the same for the first half of the process. If you are looking to install shingles you might want to consider the closed cut valley method. For a closed valley shingles are installed across the joint where planes intersect.

For a closed valley the roofer will install the shingles onto the roof deck and extend the asphalt shingles through the area where opposing roof planes meet so that the shingles cover or close the valley area. For closed cut valleys shingles on one roof plane are installed through a valley and extended at least 30 cm into the intersecting plane. Away from the valley center at the nail line. I place the shingle so that one edge is 2 ft.

It is popular because the two roof planes do not need to be shingled at the same time. 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 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.

Shingles are first installed on the side of the valley with a lower slope. Once covered the contractor moves to the side with a higher slope. Shingles are cut on the higher slope in a straight line through the valley.