When deciding how to shingle a roof valley you will need to consider your materials the climate and the desired look of the roof.
Roofing a speed valley.
Iko recommends that you install architectural shingles with the open valley method for the best roof performance.
Here is eric s method.
Any one have experience with no cut valleys speed valley long island valley or california valley in the north sates such as north iowa to minnesota with steep roofs more like 14 12 the valley i refer to is this htt.
Make sure the valley metal is straight before nailing it.
Instructional video on how to install a closed roof valley as part of installing tamko building products heritage series of laminated asphalt shingles.
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This is an open valley lined with shingles and is a defective installation.
The three methods to shingle a roof valley.
This recommendation includes iko s premium shingles.
While the slope of the common rafters are expressed as x in 12 the slope of the hip and valley rafter on the same roof will be x in 16 97 so where two roof sections intersect to form a 90 angle a regular hip or valley and each roof.
Today most linings are made of metal.
I usually find the middle of valley then move up hill two inches and pop a line parallel to the valley and set the edge of the valley shingle on that line.
Closed cut valley even if i work toward the valley with three tab shingles cut valleys are faster than woven valleys hands down.
The valley area of a roof the straight lines formed when two different planes of the roof meet is a critical area that handles a tremendous amount of water run off.
But in the past and in low end installations roll roofing or a similar material is used.
The valley shingle the one turned sideways almost looks like it is over the valley in one of the pics.
With a closed cut valley there s no need to shingle the two roof planes at the same time.
With shingles bedded in cement it can be exported to other states.
On a related note the pitch properly the slope of a hip or valley rafter will not be the same as the pitch of the adjacent roof sections.
If you re not having any problems i wouldn t worry about it.
A california valley is faster than cutting all of the shingles up a valley.
Here s a valley where the roll roofing liner has.
Courtesy of mike roberson.
Look down the ridge of the valley metal to make sure it is straight from top to bottom and nail it off.
