How To Flash A Metal Roof Valley

Attach the flashing panel in place at the bottom.

How to flash a metal roof valley.

Fold the top of the flashing over the ridge. Soup to nuts riley shows the proper way of installing a valley on a roof. Make sure to cover the gap at the bottom of the raised ridge. How to seal metal roof valley.

The installer fabricates simple clips or valley flashing cleats whose bent edge interlocks with the folded over or hemmed edges of the metal roof valley flashing to secure the valley to the roof deck. Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles. Use 1 inch galvanized roofing nails. Make sure that the end of the flashing panel is perfectly in line with the edge of the roof.

Soup to nuts riley shows the proper way of installing a valley on a roof. Use roof valley cleats at intervals of 24 o c. Apply an approximately 3 inch. Lay one and two tab shingles as you near the valley so full size shingles will run across the valley.

Two ways to flash roof edges protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. Cut the bottom edge and fold it down over the drip edge. One common method is to lay the edge metal under the eaves membrane and over the rake details concrete masonry roofing wrb flashing. 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. Install an underlayment centered in the roof valley. Shingle the other side of the valley the same way. Roof one side of the valley running the shingles across it.

Lay the flashing down in the roof valley and start at the lower end of the roof. Recommended procedures of basic valley flashing installation. Stop nailing 6 inches from the center. To splice the pieces add roofing cement to the lower piece and install the upper piece with at least a six inch.