Proper Roof Flashing

Even if one piece of step flashing fails the flashing and shingle below it start the process over again.

Proper roof flashing.

Step flashing step flashing redirects the water back onto the shingle. Renew flashing seals by chipping out old caulking and mortar along the edges of the flashing. Some key points to remember. How to install roof flashing against a wall.

Base flashing is the solution for front walls. Some roof features such as chimneys require two pieces of flashing. Details concrete masonry roofing wrb flashing. Step flashing should always be used where the roof deck meets a sidewall.

These are the key types of roof flashing you need to understand. Proper flashing around a chimney includes two layers. Recommended procedures of basic valley flashing installation. That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above.

Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. Galvanized sheet metal is most common but aluminum and copper find occasional use in specialty situations. Install an underlayment centered in the roof valley. Small l shape flashing pieces must be woven into the.

This ensures that rain always. Pieces of step flashing are bent at an angle. The first is called step flashing. Sections of l shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney.

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. Fasten loose nails and cover exposed nail heads with roofing cement. Continuous flashing against a sidewall is one way to install a roof but it s not the correct way. And more often than not the culprit is the flashing the sheet metal that keeps the intersection between the chimney and roof watertight.

Recaulk the joints between the roof and the flashing. Two ways to flash roof edges. 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. It s much easier to reseal the flashing than it is to patch a water stained wall or ceiling.

Base flashing is one length of flashing that is bent along the length. Continuous flashing is also called apron flashing because it acts a lot like an apron.