Flashing Metal Roof Against 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.

Flashing metal roof against wall. Flashing is installed to surround roof features such as vents chimneys and skylights. We have our z trim installed and tape seal on top of the z trim so we can install this and. For areas where the walls meet the roof you will need to use the step flashing technique but you will need kickout flashing in other areas. It ll close off the wall and protect the top of the panel so water can t run down the wall beneath the panel and into the roof.

I fold a piece of metal flashing for the inside corner between the subfascia and the wall. Flashing joints are lapped 6 in the direction of water flow. It s kind of like a step so water hits it comes off and moves off the roof. Choose the appropriate flashing size.

The flashing extends up the wall at least 4. If the roof runs flat up against the brick. Install base flashing under shingles or over metal roofing material. Metal roof flashing is a galvanized sheet metal bent at right angles with about eight to 12 inches on each side of the angle.

Usually 8 inch flashing will work but any size will work well. The flashing extends onto the roof a minimum of 2 inches 4 inches is preferable in more severe climate areas. I then add a second piece of flexible flashing tape to cover the open corner of the metal flashing and i fold it down onto the subfascia. Drip edge metal valley flashing dormer chimney and kickout flashing are types of roof flashing that shed water away from the connections between roofs walls chimneys and other building assemblies.

The metal flashing is formed with a hook edge and cleated on 12 centers. The final thing to do is install the end wall trim. A vertical cut about 2 in. Metal roof flashing can be use to seal gaps between roof walls.

This is just a 90 degree angle and the ribs are going to fit in here. Another term for this is a step flashing. Before we install the end wall flashing we have to apply tape sealant to the top of the z trim so that there s a water tight barrier between the end wall flashing and the top of the z. It is commonly used in two story and side split houses.

These kinds of houses often have a roof that butts against a wall. Long helps it to fold onto the roof sheathing.