At roof to wall intersections see figure 1.
Roof wall flashing techniques.
Roof shingle over step flashing.
Use step flashing that has a 2 to 4 inch longer vertical leg than normal.
There are two good ways to handle corner flashing.
Run the base flashing 4 to 5 in.
Must be kept up off the surface of the roof a minimum 1 some manufacturers of exterior wall coverings require.
Renew flashing seals by chipping out old caulking and mortar along the edges of the flashing.
Epdm flashing tape with a butyl adhesive backing will help.
Where a slope roof meets a sidewall slip the upper legs of the step flashing under the sheathing wrap see illustration.
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.
That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above.
Details concrete masonry roofing wrb flashing.
Vent flashing done right to prevent leaks back up roof vent boots with flashing counterflashing and proper shingling.
Two ways to flash roof edges.
Beyond the dormer and cut the top section along the dormer edge.
If you do not wish to form your own corner flashing you can buy pre bent pieces and cut them to size or use a piece of corrugated aluminum which is easier to bend.
One common method is to lay the edge metal under the eaves membrane and over the rake.
Badly corroded flashing will need to be replaced.
Waterproof your windows with liquid flashing learn how to install liquid applied flashing to seal the rough opening while leaving a path for water to escape.
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.
Click to enlarge make sure the sheathing wrap overlaps all step flashings.
Without the roof flashing against those walls water would slowly drip into the space between the roof and wall and even potentially into the home.
Bend the corner flashing tightly around the corner.
It s much easier to reseal the flashing than it is to patch a water stained wall or ceiling.
Fasten loose nails and cover exposed nail heads with roofing cement.
Bend the flap down and nail along the top edge.
So what do you do when you find yourself needing roof flashing.
Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing.
Roof to wall flashing.
Do not seal housewrap or building paper to step 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.
For deck flashing.
Knowing the different types as well as the techniques to implement can be helpful.
Step flashing on roof peak.
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.
