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How to install metal roof valley.
When installing metal valley flashing there are a few things to keep in mind from cutting metal roofing to sealing the flashing.
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Fold the top over the roof ridge and cut the bottom along the drip edge metal.
Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing.
No sales pitch or other fluff.
Just simple 3d animated digital instructions on how to install a valley on a masterrib panel roof.
Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles.
Shingle the other side of the valley the same way.
Metal valley trim also known as metal valley flashing is beneficial because it drains water away from the structure of your metal building which helps prevent moisture damage.
Roof one side of the valley running the shingles across it.
With a clean valley you can lay down some peel and stick roofing membrane.