So what do you do when you find yourself needing roof flashing.
Roof wall flashing techniques.
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.
Step flashing on roof peak.
For deck flashing.
Bend the corner flashing tightly around the corner.
Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape.
Details concrete masonry roofing wrb flashing.
Badly corroded flashing will need to be replaced.
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.
It s much easier to reseal the flashing than it is to patch a water stained wall or ceiling.
That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above.
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.
Use step flashing that has a 2 to 4 inch longer vertical leg than normal.
Vent flashing done right to prevent leaks back up roof vent boots with flashing counterflashing and proper shingling.
Roofing cement can dry out and crumble away exposing joints to water.
Must be kept up off the surface of the roof a minimum 1 some manufacturers of exterior wall coverings require.
There are two good ways to handle corner flashing.
Beyond the dormer and cut the top section along the dormer edge.
Where a slope roof meets a sidewall slip the upper legs of the step flashing under the sheathing wrap see illustration.
Click to enlarge make sure the sheathing wrap overlaps all step flashings.
Roof to wall flashing.
Run the base flashing 4 to 5 in.
At roof to wall intersections see figure 1.
Fasten loose nails and cover exposed nail heads with roofing cement.
Epdm flashing tape with a butyl adhesive backing will help.
All exterior wall coverings whether it is wood siding vinyl siding brick or stone veneer stucco etc.
Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge 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.
Renew flashing seals by chipping out old caulking and mortar along the edges of the flashing.
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.
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.
Two ways to flash roof edges.
Roof shingle over step flashing.
Where snow buildup is likely add a wide band of peel and stick membrane lapped over the step flashing but under the sheathing wrap.
One common method is to lay the edge metal under the eaves membrane and over the rake.
Do not seal housewrap or building paper to step flashing.
