How Do I Install Metal Roofing In A Valley

The top joinery of both valleys when they meet on the same plane of roof is shown here.

How do i install metal roofing in a valley.

Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing. With a clean valley you can lay down some peel and stick roofing membrane. Install an underlayment centered in the roof valley. Fold the top over the roof ridge and cut the bottom along the drip edge metal.

I have my valley custom made with water trough to help with leaking b. Some homeowners do not like the look of open valleys while others feel the metal accentuates the roof s shape particularly if copper or painted flashing is used. Masterrib is a 36 wide 5 r. Just simple 3d animated digital instructions on how to install a valley on a masterrib panel roof.

When installing metal valley flashing there are a few things to keep in mind from cutting metal roofing to sealing the flashing. Iko recommends installing an open valley with architectural or laminated shingles. Remove the old roofing. No sales pitch or other fluff.

Consult the guide for your shingle brand to determine the specific method of installation required to preserve the warranty. 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. Work at a comfortable steady pace trying not to rip up or carry off too much old roofing at once. Although you can install corrugated metal roofing over shingles for the best foundation it is recommended that all the old roofing be removed.

That flashing is left exposed so the roof has visible lines of metal running down the valley. Most metal shingles will be attached to the roof using metal shingle clips but metal roofing shingle installation can be system specific.