Steel Roof Valley Installation

Always begin working at the point with the longest peak to eave distance.

Steel roof valley installation. With a clean valley you can lay down some peel and stick roofing membrane. Cut corners and apply cement dub cut the top layer shingles see step 4 in open metal valley above. Install an underlayment centered in the roof valley. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

Add the metal panels. Cut the panels from the ground instead of on the roof to avoid damaging the roof with the debris. 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. 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.

How to seal metal roof valley. I have my valley custom made with water trough to help with leaking b. Masterrib is a 36 wide 5 r. Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel.

Take care the first piece is aligned precisely perpendicular square to the edge. 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. No sales pitch or other fluff. Also apply cement to attach the top layer shingles to each other see steps 5 and 6 in open metal valley above.

Apply an approximately 3 inch width of asphalt roofing cement along the sides of flashing and embed shingles in mastic. Install the roofing screws vertically along each rib in the panel. Best practices for sealing the metal roof valley vary based on the slope of the roof. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing.

Just simple 3d animated digital instructions on how to install a valley on a masterrib panel roof. Applicable for ultravic supervic 7 8 corrugated barnmaster diamond rib double. Apply two beads of roofing cement to attach the top layer shingles to the bottom layer shingles.