Valley On A Metal Roof

Roof mastic applied along sides of valley flashing.

Valley on a metal roof.

Fasteners placed in the exposed center area. W valley flashing protects the critical area of your roof where two slopes come together to form a valley. When properly installed w valley flashing will reliably channel run off water down the roof and into the gutter. Best practices for sealing the metal roof valley vary based on the slope of the roof.

The metal valley is installed on top of the ice and water shield and creates a highly effective barrier and passageway to keep your roof dry and protected. Valleys are a very important part of a well designed roofing system. These items can be fabricated in many different profiles. Roofing shingles are installed then cut and sealed where they overlap the metal channel.

The metal is usually pre painted to best complement the shingles color blend. For an open valley a sheet of metal usually steel sometimes copper is fastened to the roof deck. Punctures in the center of the valley. Closed cut valley fully replaced with new metal valley flashing.

This will reduce the installed cost of the project. Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel. No sales pitch or other fluff. Masterrib is a 36 wide 5 r.

Open valleys on the other hand leave the metal exposed which may be more pleasing to the eye especially if copper is used as the valley lining. Be sure to check local building codes to ensure you have the proper width for your application. Fold the top over the roof ridge and cut the bottom along the drip edge metal. Why is a metal valley important while there are a number of materials that can be used in roof valleys metal provides the most durable longest lasting solution.

Contractors may be able to reduce the cost of materials on roofing projects by eliminating the metal being installed in the valleys. Just simple 3d animated digital instructions on how to install a valley on a masterrib panel roof. An open valley relies on metal flashing for protection. Failure to extend the entire width of the metal valley flashing beyond the eave of the roof.

That flashing is left exposed so the roof has visible lines of metal running down the valley. Avoid the following common errors. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing. How to seal metal roof valley.

Use fasteners to attach the panel to the structure making sure that there is complete compression of the sealant.