Install the valley battens on the sides of the roof that you want to place the valley flashing.
How to install metal flashing in valleys on ondura roof.
Fold the top over the roof ridge and cut the bottom along the drip edge metal.
Install an underlayment centered in the roof valley.
Installing ondura corrugated roofing sheets on a chicken coop duration.
The top joinery of both valleys when they meet on the same plane of roof is shown here.
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.
Lay the flashing in a way that.
Roof flashing with mark sauder.
A batten is a roofing component made of a thin layer of metal plastic or wood and is used as a fixing point for roof tiles and roofing sheets.
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Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing.
Apply an approximately 3 inch width of asphalt roofing cement along the sides of flashing and embed shingles in mastic.
Place the flashing on the upper portion or the upper flange of the batten.
With a clean valley you can lay down some peel and stick roofing membrane.