How To Install Metal Flashing In Valleys On Ondura 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.

How to install metal flashing in valleys on ondura roof.

Apply an approximately 3 inch width of asphalt roofing cement along the sides of flashing and embed shingles in mastic. Installing ondura corrugated roofing sheets on a chicken coop duration. Place the flashing on the upper portion or the upper flange of the batten. Fold the top over the roof ridge and cut the bottom along the drip edge metal.

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. Lay the flashing in a way that. Roof flashing with mark sauder. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing.

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. I have my valley custom made with water trough to help with leaking b. Install the valley battens on the sides of the roof that you want to place the valley flashing. Install an underlayment centered in the roof valley.

Step 9 cut corners and apply cement dub cut the top layer shingles see step 4 in open metal valley above.