Steel Roof Valley Installation

With a clean valley you can lay down some peel and stick roofing membrane.

Steel roof valley installation.

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. Install the roofing screws vertically along each rib in the panel. I have my valley custom made with water trough to help with leaking b. Apply two beads of roofing cement to attach the top layer shingles to the bottom layer shingles.

Install an underlayment centered in the roof valley. Fold the top over the roof ridge and cut the bottom along the drip edge metal. Also apply cement to attach the top layer shingles to each other see steps 5 and 6 in open metal valley above. How to seal metal roof valley.

Masterrib is a 36 wide 5 r. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing. Apply an approximately 3 inch width of asphalt roofing cement along the sides of flashing and embed shingles in mastic. 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.

Take care the first piece is aligned precisely perpendicular square to the edge. Just simple 3d animated digital instructions on how to install a valley on a masterrib panel roof. How to install a valley on a vicwest metal roof. Add the metal panels.

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. Cut corners and apply cement dub cut the top layer shingles see step 4 in open metal valley above. Cut the panels from the ground instead of on the roof to avoid damaging the roof with the debris. No sales pitch or other fluff.

Always begin working at the point with the longest peak to eave distance. Best practices for sealing the metal roof valley vary based on the slope of the roof. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.