At roof to wall intersections see figure 1.
The counter flashing at a roof to wall intersection is.
Most mason contractors are diligently installing flashing and weep holes at the base of walls as well as at the window head and sill.
Install kick out flashing at the end of a roof wall intersection to divert water away from the wall and into gutters.
Vent flashing done right to prevent leaks back up roof vent boots with flashing counterflashing and proper shingling.
When installing metal or rubber membrane roofs use continuous flashing rather than pieces of step flashing.
Use step flashing that has a 2 to 4 inch longer vertical leg than normal.
Epdm flashing tape with a butyl adhesive backing will help.
Proper installation of flashing and counter flashing at the intersection of a vertical wall with a roof surface is required to avoid roof leaks.
However typically in gables the flashing installed consists of a base flashing and a counter flashing.
Installing step flashing to prevent roof leaks step flashing spans the joint between roof shingles and an adjacent side wall.
Roof to wall and deck to wall flashing www fema gov.
Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape.
Here s how to install it correctly.
Ensure that the kick out flashing is large enough to handle expected storm water flows.
Because most roof flashing is required to extend up the wall a minimum of 4 and some a minimum of 5.
The roof flashing is then placed up behind this through the wall z bar flashing on the outside of the vertical blocking backing material.
