The Counter Flashing At A Roof To Wall Intersection Is

Installing step flashing to prevent roof leaks step flashing spans the joint between roof shingles and an adjacent side wall.

The counter flashing at a roof to wall intersection is. Our page top photograph illustrates a successful installation of flashing and counter flashing along intersection of a roof surface with the side of a brick constructed dormer. 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. Use step flashing that has a 2 to 4 inch longer vertical leg than normal.

Because most roof flashing is required to extend up the wall a minimum of 4 and some a minimum of 5. Most mason contractors are diligently installing flashing and weep holes at the base of walls as well as at the window head and sill. At roof to wall intersections see figure 1. Most simply use a nominal 6 piece of lumber.

Here s how to install it correctly. Roof to wall and deck to wall flashing www fema gov. However typically in gables the flashing installed consists of a base flashing and a counter flashing. But flashing that extends through the veneer and weep holes are often omitted.

Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape. The roof flashing is then placed up behind this through the wall z bar flashing on the outside of the vertical blocking backing material. When installing metal or rubber membrane roofs use continuous flashing rather than pieces of step flashing.