The metal valley is installed on top of the ice and water shield and creates a highly effective barrier and passageway to keep your roof dry and protected.
Using paper or metal in a roof valley.
How to measure and cut the metal on a valley for metal roof install.
Failure to extend the entire width of the metal valley flashing beyond the eave of the roof.
Roof mastic applied along sides of valley flashing.
Open valleys on the other hand leave the metal exposed which may be more pleasing to the eye especially if copper is used as the valley lining.
How to seal metal roof valley.
How to measure and cut the metal on a valley for metal roof install.
He notes that due to the metal construction of an open valley it may shed ice and water more quickly which could help minimize granule loss.
Installed correctly it provides a unique aesthetic especially when using painted or copper coil stock.
How to install roofing paper in a valley section and install the valley flashing on top.
This video shows the water proofing paper that we installed after re.
With a clean valley you can lay down some peel and stick roofing membrane.
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.
Use fasteners to attach the panel to the structure making sure that there is complete compression of the sealant.
A metal valley is a pre bent roofing material designed to protect these vulnerable areas on your roof.
Why is a metal valley important.
Contractors may be able to reduce the cost of materials on roofing projects by eliminating the metal being installed in the valleys.
Still using metal for roof valleys has proven to be a popular choice among roofing experts.
That flashing is left exposed so the roof has visible lines of metal running down the valley.
Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing.
Best practices for sealing the metal roof valley vary based on the slope of the roof.
Fasteners placed in the exposed center area.
An open valley relies on metal flashing for protection.
Punctures in the center of the valley.
And if problems with roof leaks or other damage occur years later an open valley system is.
Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel.
Avoid the following common errors.
Closed cut valley fully replaced with new metal valley flashing.
Fold the top over the roof ridge and cut the bottom along the drip edge metal.
