How To Seal A Metal Roof Valley

Let s take a look at valley seal and how it can help keep your roof in top condition over the long term.

How to seal a metal roof valley.

Valley seal eliminates the need for expensive cement bedding. Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. Best practices for sealing the metal roof valley vary based on the slope of the roof. 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. Roof one side of the valley running the shingles across it. That flashing is left exposed so the roof has visible lines of metal running down the valley. 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.

An open valley relies on metal flashing for protection. How to seal metal roof valley. With a clean valley you can lay down some peel and stick roofing membrane. Use fasteners to attach the panel to the structure making sure that there is complete compression of the sealant.

The top joinery of both valleys when they meet on the same plane of roof is shown here. 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. Masterrib is a 36 wide 5 r. Valleys channel water away and.

Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel. I have my valley custom made with water trough to help with leaking b. Roof leaks are also very common in the winter when all the snow accumulating on a roof creates a potential for a roof leak to develop especially if a roof. Stop nailing 6 inches from the center.

Shingle the other side of the valley the same way. Repairing a metal roof seam with turbo poly seal is simple and it is a do it yourself p. Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles.