Proper Roof Flashing

These are the key types of roof flashing you need to understand.

Proper roof flashing.

Galvanized sheet metal is most common but aluminum and copper find occasional use in specialty situations. Step flashing should always be used where the roof deck meets a sidewall. One common method is to lay the edge metal under the eaves membrane and over the rake. Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.

This ensures that rain always. Recommended procedures of basic valley flashing installation. Sections of l shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney. 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. Some roof features such as chimneys require two pieces of flashing. Step flashing step flashing redirects the water back onto the shingle. Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing.

Some key points to remember. Details concrete masonry roofing wrb flashing. The first is called step flashing. Two ways to flash roof edges.

Fasten loose nails and cover exposed nail heads with roofing cement. Base flashing is one length of flashing that is bent along the length. It s much easier to reseal the flashing than it is to patch a water stained wall or ceiling. That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above.

And more often than not the culprit is the flashing the sheet metal that keeps the intersection between the chimney and roof watertight. Pieces of step flashing are bent at an angle. 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.

Proper flashing around a chimney includes two layers. Recaulk the joints between the roof and the flashing. Continuous flashing is also called apron flashing because it acts a lot like an apron. Install an underlayment centered in the roof valley.

Proper roof wall flashing example to install the roof wall flashing above the builder bent the top edge of the flashing into a 90 degree lip about 2 cm in width. Base flashing is the solution for front walls.