Valley Installation Metal Roof

A roof valley is formed where two roof slopes meet.

Valley installation metal roof.

Fold the top over the roof ridge and cut the bottom along the drip edge metal. Some roofers cut the shingles parallel to the flashing s center ridge. Water collects in a valley to flow off the roof. Essentially there are three main ways to shingle a roof valley.

Woven closed cut and open. Others start with a 3 inch wide. Cut the panels from the ground instead of on the roof to avoid damaging the roof with the debris. Your choice of valley installation method is critical because when improperly installed valleys are risks for serious leaks.

First clean the debris out of the valley including sawdust nails and whatever else is in there. Best practices for sealing the metal roof valley vary based on the slope of the roof. Place a piece of sheet metal under the shingles to make sure you will not damage the flashing. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps.

Snipping off the corners of. Apply an approximately 3 inch. Recommended procedures of basic valley flashing installation. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.

Install synthetic roofing. Install an underlayment centered in the roof valley. How to do it determine cuts. 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.

Most metal shingles will be attached to the roof using metal shingle.