Steel Roof Valley Installation

Just simple 3d animated digital instructions on how to install a valley on a masterrib panel roof.

Steel roof valley installation. Applicable for ultravic supervic 7 8 corrugated barnmaster diamond rib double. 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. Install an underlayment centered in the roof valley. Masterrib is a 36 wide 5 r.

Take care the first piece is aligned precisely perpendicular square to the edge. Always begin working at the point with the longest peak to eave distance. Apply an approximately 3 inch width of asphalt roofing cement along the sides of flashing and embed shingles in mastic. Cut the panels from the ground instead of on the roof to avoid damaging the roof with the debris.

How to install a valley on a vicwest metal roof. The top joinery of both valleys when they meet on the same plane of roof is shown here. Apply two beads of roofing cement to attach the top layer shingles to the bottom layer shingles. 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.

Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel. 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. Install the roofing screws vertically along each rib in the panel. Also apply cement to attach the top layer shingles to each other see steps 5 and 6 in open metal valley above.

Cut corners and apply cement dub cut the top layer shingles see step 4 in open metal valley above. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. I have my valley custom made with water trough to help with leaking b.

No sales pitch or other fluff. Best practices for sealing the metal roof valley vary based on the slope of the roof. How to seal metal roof valley.