Install the kickout flashing.
Roof to wall siding flashing.
However the typical recommended width of step flashing ranges from 5 inches to 10 inches.
The roofing contractors usually try to slide the roof flashing up behind lapped siding but many times this can be a chore and sometimes the exterior wall covering and or the existing water resistive barrier house wrap gets damaged in the process.
Do not seal housewrap or building paper to step flashing.
I use a wide piece of flexible flashing tape to protect the area between the subfascia and the wall.
Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape.
I made this video this morning and i hope it help explain the flashing wall detail where the siding meets the roof.
The flashing needs to be installed before installing the roof shingles the metal flashing is formed with a hook edge and cleated on 12 centers the flashing extends up the wall at least 4 the flashing extends onto the roof a minimum of 2 inches 4 inches is preferable in more severe climate areas.
It is used for roof to wall flashing.
Use the metal break tool to bend the flashing lengthwise in the middle according to the angle of the roof joint.
Kickout flashing installs just like standard step flashing except that half of the kickout flashing hangs over the edge of the roof.
Most flashing is 8 inches wide.
At roof to wall intersections see figure 1.
Once the flexible flashing is set i apply a piece of housewrap along the wall where the fascia meets it.
The solution to rotting sidewalls is a small piece of bent metal called a kickout flashing at roofing suppliers which simply directs all that water away from the wall.
A 5 inch wide flashing will result in a 2 1 2 roof deck flange and 2 1 2 vertical wall flange.
Flexible flashing tape seals the eave to the wall.
Learn how to install it below.
I cut the tape so that it laps onto the housewrap above and 3 in.
Likewise a 10 wide flashing will result in a 5 inch wide roof deck flange and a 5 inch vertical flange.
Install roofing felt before starting step flashing.
Run roofing felt up the wall about an inch higher than the wall side.
Above the roof sheathing.
Use step flashing that has a 2 to 4 inch longer vertical leg than normal.
Step flashing is a rectangular piece of flashing bent 90 degrees in the center.
For deck flashing.
Multiple pieces of the flashing will be installed in layers with shingles to ensure the water flows away from the wall.
