Roof To Wall Flashing

At roof to wall intersections see figure 1.

Roof to wall flashing.

It s much easier to reseal the flashing than it is to patch a water stained wall or ceiling. Must be kept up off the surface of the roof a minimum 1 some manufacturers of exterior wall coverings require a minimum of 2. Roofing cement can dry out and crumble away exposing joints to water. 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.

Details concrete masonry roofing wrb flashing. Galvanized steel is a trusted low maintenance product that is known for durability. That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above. Renew flashing seals by chipping out old caulking and mortar along the edges of the flashing.

Use step flashing that has a 2 to 4 inch longer vertical leg than normal. All exterior wall coverings whether it is wood siding vinyl siding brick or stone veneer stucco etc. Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape. Fasten loose nails and cover exposed nail heads with roofing cement.

Badly corroded flashing will need to be replaced. Roof to wall flashing there have always been problems with the flashing details at head walls rake walls and chimneys especially if stucco brick or stone veneer is used. Two ways to flash roof edges. L shaped flashing is a versatile general use flashing used where a uniform or strengthened finish is needed on a 90 surface.

Roof to wall flashing is bent at a 110. The shorter vertical plane is attached to the upper floor wall under the building paper the lower plane sits on top of the underlayment and under the shingles. Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. Recaulk the joints between the roof and the flashing.

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. Do not seal housewrap or building paper to step flashing.