How To Seal A Metal Roof Valley

Valley seal eliminates the need for expensive cement bedding.

How to seal a metal roof valley.

Roof valleys are the v shaped metal channels that sit between the folds of the roof where two sloped sections meet. That flashing is left exposed so the roof has visible lines of metal running down the valley. The reason why the roof valley is such a sensitive area has to do with all the rainwater and or melting snow that accumulates and flows through the valley on its way into the gutters. An open valley relies on metal flashing for protection.

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. With a clean valley you can lay down some peel and stick roofing membrane. Fold the top over the roof ridge and cut the bottom along the drip edge metal.

Best practices for sealing the metal roof valley vary based on the slope of the roof. Let s take a look at valley seal and how it can help keep your roof in top condition over the long term. Roof one side of the valley running the shingles across it. The top joinery of both valleys when they meet on the same plane of roof is shown here.

Stop nailing 6 inches from the center. 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. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing. Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel.

How to seal metal roof valley. Masterrib is a 36 wide 5 r. I have my valley custom made with water trough to help with leaking b. Repairing a metal roof seam with turbo poly seal is simple and it is a do it yourself p.

Shingle the other side of the valley the same way. Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. No sales pitch or other fluff.