Installing A Metal Roof Valley

First clean the debris out of the valley including sawdust nails and whatever else is in there.

Installing a metal roof valley.

Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. Apply an approximately 3 inch. 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. Slip a piece of sheet metal flashing under the top layer of shingles to protect the bottom layer in the valley while you cut the shingles with a hook blade.

Most metal shingles will be attached to the roof using metal shingle. Take care the first piece is aligned precisely perpendicular square to the edge. To secure the roof valley flashing nail it down carefully. Always begin working at the point with the longest peak to eave distance.

Attach the flashing panel in place at the bottom. Then starting at the base of the. Add the metal panels. Best practices for sealing the metal roof valley vary based on the slope of the roof.

Then install a non corrosive metal valley flashing of 24 minimum width lap successive sheets of metal flashing a minimum of 12 inches and seal laps. Cut the top layer of shingles along the chalkline. With a clean valley you can lay down some peel and stick roofing membrane. Recommended procedures of basic valley flashing installation.

Install synthetic roofing. Step 9 cut corners and apply cement. Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel. Use 1 inch galvanized roofing nails.

Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. Lay the flashing down in the roof valley and start at the lower end of the roof. Only nail at the edges with only enough nails to. How to seal metal roof valley.

Install an underlayment centered in the roof valley. Cut the panels from the ground instead of on the roof to avoid damaging the roof with the debris.