Roof Mortar Flashing

Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing.

Roof mortar flashing.

Run the base flashing 4 to 5 in. Beyond the dormer and cut the top section along the dormer edge. Renew flashing seals by chipping out old caulking and mortar along the edges of the flashing. Bend the flap down and nail along the top edge.

Hook a hem at the top into the hem in the edge of the pan flashing inset. One common method is to lay the edge metal under the eaves membrane and over the rake. Metal roof flashing is a galvanized sheet metal bent at right angles with about eight to 12 inches on each side of the angle. Flashing is installed to surround roof features such as vents chimneys and skylights.

Fasten loose nails and cover exposed nail heads with roofing cement. Details concrete masonry roofing wrb flashing. Two ways to flash roof edges. Roof flashing is a thin material usually galvanized steel that professional roofers use to direct water away from critical areas of the roof wherever the roof plane meets a vertical surface like a wall or a dormer.

These kinds of houses often have a roof that butts against a wall. The first bending two pieces and caulking the joint photos 1 3 is the most common because you can do it on the spot with the flashing at hand. There are two good ways to handle corner flashing. Once the roofing and step flashing are in place complete the counterflashing at the masonry as follows.

It s much easier to reseal the flashing than it is to patch a water stained wall or ceiling. It is commonly used in two story and side split houses.