How To Roof A Valley With Tin

Roof mastic applied along sides of valley flashing.

How to roof a valley with tin.

Valley tin in roofing. How to seal metal roof valley. Galvanized steel w valley flashing. An open valley relies on metal flashing for protection.

As the asphalt shingles are installed over the roof deck the shingles are extended into the valley. Punctures in the center of the valley. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing.

Failure to extend the entire width of the metal valley flashing beyond the eave of the roof. However these shingles are not run entirely through the valley area but rather the center of the metal valley is left exposed. Shingle the other side of the valley the same way. Roof one side of the valley running the shingles across it.

Closed cut valley fully replaced with new metal valley flashing. Use fasteners to attach the panel to the structure making sure that there is complete compression of the sealant. Stop nailing 6 inches from the center. Best practices for sealing the metal roof valley vary based on the slope of the roof.

Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel. Valley metal see all. Avoid the following common errors. That flashing is left exposed so the roof has visible lines of metal running down the valley.

When properly installed w valley flashing will reliably channel run. With a clean valley you can lay down some peel and stick roofing membrane. W valley flashing protects the critical area of your w valley flashing protects the critical area of your roof where two slopes come together to form a valley. Lay one and two tab shingles as you near the valley so full size shingles will run across the valley.

Continue adding panels until the roof is covered. Metal roofing is also available in the form of shingles. You may need to cut panels to fit angles using a circular saw with a metal saw blade. Fasteners placed in the exposed center area.

Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles.