How To Put Down Meatel Vally On Roof

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How to put down meatel vally on roof.

Many roofers cut the shingles across because they say it s safer. Cut the bottom edge and fold it down over the drip edge. Use 1 inch galvanized roofing nails. Install an underlayment centered in the roof valley.

To splice the pieces add roofing cement to the lower piece and install the upper piece with at least a six inch. That flashing is left exposed so the roof has visible lines of metal running down the valley. Others start with a 3 inch wide. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.

Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. In this video i show you how i do the valleys on a shingle roof. Lay the flashing down in the roof valley and start at the lower end of the roof. The top joinery of both valleys when they meet on the same plane of roof is shown here.

Use fasteners to attach the panel to the structure making sure that there is complete compression of the sealant. Most metal shingles will be attached to the roof using metal shingle. Snipping off the corners of. I have my valley custom made with water trough to help with leaking b.

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. An open valley relies on metal flashing for protection. Make sure to cover the gap at the bottom of the raised ridge. Make sure that the end of the flashing panel is perfectly in line with the edge of the roof.

Attach the flashing panel in place at the bottom. Place a piece of sheet metal under the shingles to make sure you will not damage the flashing. Apply an approximately 3 inch width of asphalt roofing cement along the sides of flashing and embed shingles in mastic. Low slope roofs slope less than 3 12 use tape sealant between the valley trim and the panel.

Fold the top of the flashing over the ridge. Some roofers cut the shingles parallel to the flashing s center ridge.