How To Do Valley On Metal Roof

However a valley is still a common place to find roof leaks because once the flashing is damaged say by a hail storm for example water can easily penetrate.

How to do valley on metal roof.

Apply two beads of roofing cement to attach the top layer shingles to the bottom layer shingles. Cut corners and apply cement dub cut the top layer shingles see step 4 in open metal valley above. With a clean valley you can lay down some peel and stick roofing membrane. Cut each side at the upper end of the valley to conform with the.

Attach the flashing panel in place at the bottom. First clean the debris out of the valley including sawdust nails and whatever else is in there. Install synthetic roofing. Use 1 inch galvanized roofing nails.

Best practices for sealing the metal roof valley vary based on the slope of the roof. Use fasteners to attach the panel to the structure making sure that there is complete compression of the sealant. Fold the top over the roof ridge and cut the bottom along the drip edge metal. How to seal metal roof valley.

Cut each side of the flashing at the lower end to conform with the corresponding edges of the roof using sheet metal cutters. Lay the flashing down in the roof valley and start at the lower end of the roof. In roofing a valley is also a low spot that is created when two slopes of a roof meet. I have my valley custom made with water trough to help with leaking b.

Use tape sealant between the valley trim and the panel. Make sure that the end of the flashing panel is perfectly in line with the edge of the roof. Also apply cement to attach the top layer shingles to each other see steps 5 and 6 in open metal valley above.