Proper Roof Flashing

One common method is to lay the edge metal under the eaves membrane and over the rake.

Proper roof flashing. These are the key types of roof flashing you need to understand. Sections of l shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney. Small l shape flashing pieces must be woven into the. Step flashing can be made with aluminum copper lead galvanized steel or stainless steel but most commonly it is aluminum or copper.

That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above. Base flashing is one length of flashing that is bent along the length. And more often than not the culprit is the flashing the sheet metal that keeps the intersection between the chimney and roof watertight. Some roof features such as chimneys require two pieces of flashing.

Continuous flashing against a sidewall is one way to install a roof but it s not the correct way. The first is called step flashing. Step flashing step flashing redirects the water back onto the shingle. It s much easier to reseal the flashing than it is to patch a water stained wall or ceiling.

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. Details concrete masonry roofing wrb flashing. This ensures that rain always. Two ways to flash roof edges.

How to install roof flashing against a wall. Recommended procedures of basic valley flashing installation. Fasten loose nails and cover exposed nail heads with roofing cement. Step flashing should always be used where the roof deck meets a sidewall.

Continuous flashing is also called apron flashing because it acts a lot like an apron. Proper flashing around a chimney includes two layers. Some key points to remember. Install an underlayment centered in the roof valley.

Pieces of step flashing are bent at an angle. Renew flashing seals by chipping out old caulking and mortar along the edges of the flashing. Recaulk the joints between the roof and the flashing. Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing.

Although roof flashing is occasionally fabricated from plastic roofing felt or rubber it is usually made of rust resistant metal galvanized steel aluminum or copper. Even if one piece of step flashing fails the flashing and shingle below it start the process over again.