Two ways to flash roof edges.
Flashing roof to rake wall.
During severe winds shingles are more likely to lift along the rake edges where they don t have the benefit of shingle overlap at the edge.
Details concrete masonry roofing wrb flashing.
Above the roof sheathing.
N at roof to wall intersections see figure 1.
N tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape.
Without gable rake flashing protection wind driven rain can begin to rot the fascia and roof deck.
Below are guidelines for flashing the wall before installing any type of sloped roofing material at eave to rake wall intersections.
Flexible flashing tape seals the eave to the wall.
Metal roof flashing is a galvanized sheet metal that is bent at a 90 degree angle about 8 to 12 inches on each side of the angle.
However the problems in this area can be greatly reduced if some guidelines are followed.
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.
Your shingles and gutters do most of the work at the eaves so the drip edge is merely on call support.
Once the flexible flashing is set i apply a piece of housewrap along the wall where the fascia meets it.
Drip edges are strips of flashing material that run along roof eaves and rakes to prevent water from seeping under the finished roof along its edges.
One common method is to lay the edge metal under the eaves membrane and over the rake.
All exterior wall coverings whether it is wood siding vinyl siding brick or stone veneer stucco etc.
Must be kept up off the surface of the roof a minimum 1 some manufacturers of exterior wall coverings require a minimum of 2.
Same type of metal as the flashing material.
Eave to rake wall flashing one of the most troublesome areas of the roof is the eave to rake wall flashing intersection.
Gable rake flashing is a professional trim product that covers the exposed ends of metal roofing panels resulting in a neater appearance.
The majority of roof leaks occur in locations where the plane of the roof is interrupted by a ridge another roof intersecting at an angle a wall or penetration.
I use a wide piece of flexible flashing tape to protect the area between the subfascia and the wall.
Galvanized steel is a trusted low maintenance product that is known for durability.
It comes in 10 foot lengths or for step flashing 6 inch lengths.
Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing.
Flashing wrapped at the rake edge gives that extra layer of defense.
I cut the tape so that it laps onto the housewrap above and 3 in.
N use step flashing that has a 2 to 4 inch lon ger vertical leg than normal.
Roof flashings are typically used at roof wall intersections.
