Metal Roof Valley Installation

Install an underlayment centered in the roof valley.

Metal roof valley installation.

Roof one side of the valley running the shingles across it. Fold the top over the roof ridge and cut the bottom along the drip edge metal. 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. Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles. Best practices for sealing the metal roof valley vary based on the slope of the roof. Then install a non corrosive metal valley flashing of 24 minimum width.

An open valley relies on metal flashing for protection. How to seal metal roof valley. How to install a valley on a vicwest metal roof. Just simple 3d animated digital instructions on how to install a valley on a masterrib panel roof.

That flashing is left exposed so the roof has visible lines of metal running down the. 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. Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel.

Contractors may be able to reduce the cost of materials on roofing projects by eliminating the metal being installed in the valleys. Lap successive sheets of metal flashing a minimum of 12 inches and seal laps. Stop nailing 6 inches from the center. Always be sure to refer to your local codes to see if they demand a particular kind of valley installation.

Open valley shingle installation. Indeed california valleys are prohibited in some areas. Applicable for ultravic supervic 7 8 corrugated barnmaster diamond rib double. Shingle the other side of the valley the same way.

Recommended procedures of basic valley flashing installation.