How To Roof A Valley With Tin

Galvanized steel w valley flashing.

How to roof a valley with tin.

With a clean valley you can lay down some peel and stick roofing membrane. As the asphalt shingles are installed over the roof deck the shingles are extended into the valley. An open valley relies on metal flashing for protection. Best practices for sealing the metal roof valley vary based on the slope of the roof.

Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles. Valley metal see all. Punctures in the center of the valley. How to seal metal roof valley.

However these shingles are not run entirely through the valley area but rather the center of the metal valley is left exposed. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing. When properly installed w valley flashing will reliably channel run. Roof one side of the valley running the shingles across it.

Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. Failure to extend the entire width of the metal valley flashing beyond the eave of the roof. Fold the top over the roof ridge and cut the bottom along the drip edge metal. In addition it is important to avoid nailing the shingles through the valley metal.

Shingle the other side of the valley the same way. You may need to cut panels to fit angles using a circular saw with a metal saw blade. Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel. Continue adding panels until the roof is covered.

Use fasteners to attach the panel to the structure making sure that there is complete compression of the sealant. 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. Some homeowners do not like the look of open valleys while others feel the metal accentuates the roof s shape particularly if copper or painted flashing is used. Fasteners placed in the exposed center area.

That flashing is left exposed so the roof has visible lines of metal running down the valley. Closed cut valley fully replaced with new metal valley flashing. Roof mastic applied along sides of valley flashing. Metal roofing is also available in the form of shingles.

Stop nailing 6 inches from the center.