How To Sheet A Roof Valley

Use 1 inch galvanized roofing nails.

How to sheet a roof valley.

A properly flashed roof valley should have an ice and water shield installed with roofing felt being properly secured over the ice and water. To secure the roof valley flashing nail it down carefully. Many roofers cut the shingles across because they say it s safer. Ensure ice and water protector has been installed along the valley first.

And either an organic or modified underlayment depending on whether tiles or shingles are being installed. Where two roof valleys meet for example above a gable dormer a soldered joint is likely to break from the movement. Fold the top over the roof ridge and cut the bottom along the drip edge metal. No one of this affirmat.

Stop nailing 6 inches from the center. Open valleys a roof using the open valley style involves placing a v or w shaped piece of metal usually galvanized or sometimes copper in the seam of the valley and then covered with a base sheet such as 30lb. Cut each side of the flashing at the lower end to conform with the corresponding edges of the roof using sheet metal cutters. Roof one side of the valley running the shingles across it.

Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles. Shingle the other side of the valley the same way. In this video i show you how i do the valleys on a shingle roof. Lay one and two tab shingles as you near the valley so full size shingles will run across the valley.

Cut each side at the upper end of the valley to conform with the. Make sure that the end of the flashing panel is perfectly in line with the edge of the roof. Then starting at the base of the valley center your first piece of flashing in the valley. With a clean valley you can lay down some peel and stick roofing membrane.

Overlap metal roof valley sections by 12 inches and seal the lap with a flexible sealant such as polyurethane or butyl on roofs shallower than 5 12. Attach the flashing panel in place at the bottom. How to shingle a valley with architectural shingles.