How To Attach A Roof To A Brick Wall
The wall has many windows.
How to attach a roof to a brick wall. I would like to build a front porch all across the front of my house simple shed roof with perpendicular gable in center over door. Joist hangers can help you mount each rafter to the house. Use screws to secure the rafter to the sill plate. If you decide on a shallow pitch porch roof use 2 by 6 foot rafters.
Metal roof flashing can be use to seal gaps between roof walls. If the roof runs flat up against the brick wall you must install the roof side of the flashing either under the last layer of shingles or over the roof material if it is metal. Attaching a wood roof to a cinder block building is difficult but possible. The porch roof may match the pitch of your home or have a more shallow roof pitch.
Metal roof flashing is a galvanized sheet metal bent at right angles with about eight to 12 inches on each side of the angle. It is commonly used in two story and side split houses. Failure to create an attachment point will result in roof failure especially in high winds. The positioning of your rafters will depend on the pitch of the porch roof.
On a two story house you can usually tie the ledger into a band joist also called a rim joist located between the floors as shown below. Walls that are constructed of concrete block that need to be covered with a roof will require the use of a ledger. However the do it yourselfer can attach a wooden roof to cinder block with little or no training in one to two days depending on the size and scope of the project. Flat roof and flashing against brick wall install base flashing under shingles or over metal roofing material.
The ledger is needed to properly attach the perpendicular roof trusses to the top of the structure. Where the brick is a veneer over a. I was told that the brick is a softer brick when it was laid. Follow the photo for illustrated instructions.
A ledger is a horizontal board that is attached to the top of the the wall. I have a soft brick veneer covering my 2 story house in the northeast us built 1997.