Roof flashing is a thin material usually galvanized steel that professional roofers use to direct water away from critical areas of the roof wherever the roof plane meets a vertical surface like a wall or a dormer.
How to flash a roof to a vertical wall.
Bent into an l shape.
Once the flexible flashing is set i apply a piece of housewrap along the wall where the fascia meets it.
Flexible flashing tape seals the eave to the wall.
In this video isaac illustrates installation of an 18 w.
Flashing is installed to surround roof features such as vents chimneys and skylights.
Gaf mastering the roof chapter 13 flashing is used to seal and protects joints in a building from water penetration by direct the flow of water away from.
Iws is used in conjunction with step flashing or 4x5 wall flashing to create a water tight junction.
Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape.
Once step flashing is installed per each course of shingles in prescribed fashion to integrate roof with an opposing vertical juncture.
At roof to wall intersections see figure 1.
I use a wide piece of flexible flashing tape to protect the area between the subfascia and the wall.
Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture.
Use flashing cement at joints to help secure flashing.
Above the roof sheathing.
Use step flashing that has a 2 to 4 inch longer vertical leg than normal.