Flashing Brick Wall To Roof
Usually 8 inch flashing will work but any size will work well.
Flashing brick wall to roof. With roof flashing or flashing on any other masonry work the corners are especially vulnerable because of the bends. Choose the appropriate flashing size. 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. Flashing is installed to surround roof features such as vents chimneys and skylights.
Most important make sure weep vents are included in the mortar at each pan without a way for water to escape all the fancy flashing is for nothing. You need step flashing which is metal flashing that is in an l shape. Install base flashing under shingles or over metal roofing material. Flashing joints are lapped 6 in the direction of water flow.
Install metal counterflashing onto the face of the block extending it down to about inch above the shingles. The flashing extends onto the roof a minimum of 2 inches 4 inches is preferable in more severe climate areas. Without sealant eventually water is going to work its way in between the sheet metal down into your roof. After the sheet metal flashing has been installed applying proper sealant is critical to its success.
Once the roofing and step flashing are in place complete the counterflashing at the masonry as follows. Step 3 flashing angled roofs with the step method you can use the step method to flash an angled roof. The masons should add a bond break layer to keep mortar droppings from creating dams behind the brick. You have to install the roof side of the flashing either under the last layer of shingles or over the roof materials if the roof runs flat up against a brick wall.
If the roof runs flat up against the brick.