Flashing Metal Roof To Brick Wall

How to install metal roof flashing against brick step 1.

Flashing metal roof to brick wall.

The narrower step flashing just isn t wide enough to protect the intersection fully. Because most roof flashing is required to extend up the wall a minimum of 4 and some a minimum of 5. Metal roof flashing is a galvanized sheet metal bent at right angles with about eight to 12 inches on each side of the angle. In this case we ve gone against new construction.

I recommend 12 in wide step flashings bent for a 5 in. There you have a z trim and an end wall flashing that have been joined using a stitch screw. It s also important to try and blow away the metal shavings. Flashing joints are lapped 6 in the direction of water flow.

Choose the appropriate flashing size. Normally this wall would have a house wrap on it like tyvek. The metal flashing is formed with a hook edge and cleated on 12 centers. Continue reading below our video of the day step 1 choose what kind of metal flashing you need.

Bigger step flashing is better. You can hire a professional to install it against a brick wall or you can do it yourself. Most simply use a nominal 6 piece of lumber. If the roof runs flat up against the brick.

The shank of the fastener is visible. Install metal counterflashing onto the face of the block extending it down to about inch above the shingles. The first of three labeled not good ids the least desirable way to set flashing to a wall but it is done everywhere. Hot and cold weather will make the caulk fail when the metal buckles between nails.

The flashing extends onto the roof a minimum of 2 inches 4 inches is preferable in more severe climate areas. The masons should add a bond break layer to keep mortar droppings from creating dams behind the brick. Flashing is installed to surround roof features such as vents chimneys and skylights. Finally the housewrap can be laid up on the wall to cover the top of the kickout diverter and step flashings.

The roof flashing is then placed up behind this through the wall z bar flashing on the outside of the vertical blocking backing material. It is simply a piece of metal liad to the wall and held in place with masonry nails and caulked. Install base flashing under shingles or over metal roofing material. The flashing extends up the wall at least 4.

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. Usually 8 inch flashing will work but any size will work well.