Proper Roof Valley Flashing

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

Proper roof valley flashing.

Recommended procedures of basic valley flashing installation. Be sure to check local building codes to ensure you have the proper width for your application. Penny wise but pound foolish x 2. Fold the top over the roof ridge and cut the bottom along the drip edge metal.

Properly sized and installed valley flashing is key to channeling water safely off the roof. Well in order to clear this up the minimum you can do per code is. Valley flashing is metal or sometimes peel and stick material that protects an important area on the roof where two slopes come together to form a valley. R905 2 8 3 sidewall flashing.

Ah yes the dreaded who needs to install step flashing or even a kick out flashing. Install an underlayment centered in the roof valley. 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. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing.

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. Product overview w valley flashing protects the critical area of your roof where two slopes come together to form a valley. Lile points out that valleys lined with roll roofing are not as durable. Nrca lile recommends that roof valley flashing metal for open roof valleys should be 26 gauge 0 45mm galvanized steel or equivalent noncorrosive nonstaining metal.

Paul minn area contractors. In this area of new jersey roofing contractors do not use valley flashing but shingle continuously into and out of the valley. With a clean valley you can lay down some peel and stick roofing membrane. First clean the debris out of the valley including sawdust nails and whatever else is in there.

At the top of the valley you should have a 2 gap it should increase by 1 8 of an inch for every foot of valley.