Installing Flashing For The Roof

Before you apply the flashing you ll need to lay down a waterproof membrane.

Installing flashing for the roof.

Installation of a continuous sheet of metal flashing from the top of the roof to the bottom of the roof in lieu of step flashing is not a correct method of installation in many instances. For the valley areas of the roof you will be using valley flashing. Some types of roofing materials like concrete tile incorporate a continuous sheet of metal flashing at sidewalls. Press the flashing into the urethane to achieve a positive seal.

Measure the length of the porch roof joint to determine how much flashing you will need. For extra protection run a bead of urethane between the step flashing and the chimney. Place a second piece of 8 inch 20 3 cm flashing against the chimney. The edge of the roof has thin metal flashing that helps water drip off.

While some skylight manufacturers include flashing in their products sometimes roofing professionals. The flashing should partially overlap the shingle that covers the first piece of flashing. How to install porch roof flashing step 1. Install the step flashing when the siding is installed it should be tucked behind this piece and then consecutive courses lapped over it.

Install the underlayment as directed by the manufacturer then set the valley flashing on top of it. Open valleys have metal flashing to protect this critical area of the roof. Gaf mastering the roof chapter 13 flashing is used to seal and protects joints in a building from water penetration by direct the flow of water away from. However the principles are the s.

The remaining siding on the sidewall will overlap the step flashing and nail. If you already have faulty flashing installed you. Even if one piece of step flashing fails the flashing and shingle below it start the process over again. Secure a shingle over the corner flashing using a hammer and roofing nail.

Step flashing step flashing redirects the water back onto the shingle. As you roof along a chimney alternate shingles and l shaped pieces of step flashing. Hammer 2 roofing nails into the flashing and roof. Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.

Especially if you live in an area that gets a lot of snow and ice. Each flashing job is a little bit different and depends on the type of material that the exterior of your house is made of.