How To Do A Valley Using Metal Roofing

Take care the first piece is aligned precisely perpendicular square to the edge.

How to do a valley using metal roofing. Then starting at the base of the. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. Take your first sheet of metal and place it on the roof so that it overhangs the edge at least 3 4 in 1 9 cm. Best practices for sealing the metal roof valley vary based on the slope of the roof.

Drip edge metal valley flashing dormer chimney and kickout flashing are types of roof flashing that shed water away from the connections between roofs walls chimneys and other building assemblies. First clean the debris out of the valley including sawdust nails and whatever else is in there. To secure the roof valley flashing nail it down carefully. A metal valley is a pre bent roofing material designed to protect these vulnerable areas on your roof.

How to seal metal roof valley. While there are a number of materials that can be used. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. Use fasteners to attach the panel to the structure making sure that there is complete compression of the sealant.

Use your neoprene washer head screws to secure the metal to the sheathing. Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel. Why is a metal valley important. Most metal shingles will be attached to the roof using metal shingle.

Fold the top over the roof ridge and cut the bottom along the drip edge metal. In looking at the fabral metal roofing supply catalog it has a valley flashing that from the end looks like a w that center point only about 1 inch high actually minimizes the wash effect of a larger surface area hitting the valley and washing up the adjacent roofline. 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. With a clean valley you can lay down some peel and stick roofing membrane.

Install synthetic roofing.