Steel Roof Valley Installation

The top joinery of both valleys when they meet on the same plane of roof is shown here.

Steel roof valley installation.

With a clean valley you can lay down some peel and stick roofing membrane. Install an underlayment centered in the roof valley. Also apply cement to attach the top layer shingles to each other see steps 5 and 6 in open metal valley above. Then install a non corrosive metal valley flashing of 24 minimum width lap successive sheets of metal flashing a minimum of 12 inches and seal laps.

Take your first sheet of metal and place it on the roof so that it overhangs the edge at least 3 4 in 1 9 cm. Applicable for ultravic supervic 7 8 corrugated barnmaster diamond rib double. Add the metal panels. How to install a valley on a vicwest metal roof.

Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof line. Cut corners and apply cement dub cut the top layer shingles see step 4 in open metal valley above. I have my valley custom made with water trough to help with leaking b. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing.

Apply two beads of roofing cement to attach the top layer shingles to the bottom layer shingles. Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel. Just simple 3d animated digital instructions on how to install a valley on a masterrib panel roof. No sales pitch or other fluff.

Be sure the larger edge is laid so that the small edge of the next panel will overlap it. Cut the panels from the ground instead of on the roof to avoid damaging the roof with the debris. Install the roofing screws vertically along each rib in the panel. How to seal metal roof valley.

Always begin working at the point with the longest peak to eave distance. Masterrib is a 36 wide 5 r. Fold the top over the roof ridge and cut the bottom along the drip edge metal.