How To Flash A Roof To A Vertical Wall

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.

I cut the tape so that it laps onto the housewrap above and 3 in. I use a wide piece of flexible flashing tape to protect the area between the subfascia and the wall. Flexible flashing tape seals the eave to the wall. This flashing is typically field fabricated from a sheet of 26 ga.

Use flashing cement at joints to help secure flashing. Galvanized sheet metal bent at a 90 degree angle i e. 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. Above the roof sheathing.

At roof to wall intersections see figure 1. Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture. Bent into an l shape. Flashing is installed to surround roof features such as vents chimneys and skylights.

Iws is used in conjunction with step flashing or 4x5 wall flashing to create a water tight junction. Use step flashing that has a 2 to 4 inch longer vertical leg than normal. Once the flexible flashing is set i apply a piece of housewrap along the wall where the fascia meets it.