How To Flash A Roof To A Vertical Wall

Once the flexible flashing is set i apply a piece of housewrap along the wall where the fascia meets it.

How to flash a roof to a vertical wall.

Galvanized sheet metal bent at a 90 degree angle i e. Iws is used in conjunction with step flashing or 4x5 wall flashing to create a water tight junction. Use flashing cement at joints to help secure flashing. Above the roof sheathing.

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. This flashing is typically field fabricated from a sheet of 26 ga. Use step flashing that has a 2 to 4 inch longer vertical leg than normal. 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. 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. Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture. Bent into an l shape.

Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape. I cut the tape so that it laps onto the housewrap above and 3 in. In this video isaac illustrates installation of an 18 w.