Roof To Wall Siding Flashing

Step 6 make a 10 degree bend on the shingle edge of the flashing approximately 1 2 inch from the edge.

Roof to wall siding flashing.

I use a wide piece of flexible flashing tape to protect the area between the subfascia and the wall. Use step flashing that has a 2 to 4 inch longer vertical leg than normal. If your house has a roof line that extends past a corner of two walls make the first piece of step flashing a corner. 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.

Most flashing is 8 inches wide. Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape. It is used for roof to wall flashing. However the typical recommended width of step flashing ranges from 5 inches to 10 inches.

Run roofing felt up the wall about an inch higher than the wall side. 4 inches should go up the house wall and 4 inches should go on top of the porch roof shingles. Install roofing felt before starting step flashing. Do not seal housewrap or building paper to step flashing.

Multiple pieces of the flashing will be installed in layers with shingles to ensure the water flows away from the wall. Above the roof sheathing. Step flashing is a rectangular piece of flashing bent 90 degrees in the center. Once the flexible flashing is set i apply a piece of housewrap along the wall where the fascia meets it.

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. 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. I cut the tape so that it laps onto the housewrap above and 3 in. A 5 inch wide flashing will result in a 2 1 2 roof deck flange and 2 1 2 vertical wall flange.

Kickout flashing installs just like standard step flashing except that half of the kickout flashing hangs over the edge of the roof. For deck flashing. At roof to wall intersections see figure 1. Install the kickout flashing.

Flexible flashing tape seals the eave to the wall. Learn how to install it below.