Metal Roof Valley Installation

Lap successive sheets of metal flashing a minimum of 12 inches and seal laps.

Metal roof valley installation. How to install a valley on a vicwest metal roof. Applicable for ultravic supervic 7 8 corrugated barnmaster diamond rib double. Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel. No sales pitch or other fluff.

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. Recommended procedures of basic valley flashing installation. Cut the panels from the ground instead of on the roof to avoid damaging the roof with the debris.

An open valley relies on metal flashing for protection. How to seal metal roof valley. Masterrib is a 36 wide 5 r. 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.

Contractors may be able to reduce the cost of materials on roofing projects by eliminating the metal being installed in the valleys. This will reduce the installed cost of the project. Indeed california valleys are prohibited in some areas. Open valley shingle installation.

Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. Roof one side of the valley running the shingles across it. Best practices for sealing the metal roof valley vary based on the slope of the roof. 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. Stop nailing 6 inches from the center. Fold the top over the roof ridge and cut the bottom along the drip edge metal. Shingle the other side of the valley the same way.

That flashing is left exposed so the roof has visible lines of metal running down the.