How To Attach Roof Joists To Wall

Measure and mark the location of the roof trusses.

How to attach roof joists to wall.

The positioning of your rafters will depend on the pitch of the porch roof. As with rafter style roofs toenailing is one of the most common ways of attaching a truss style roof to a wall plate. Set the roof truss on each mark. Attaching wood framing members to a brick wall is tricky especially if the framing will support any load as it does when a roof intersects the wall.

Using a block of wood as a ruler mark the ends for cutting. There are basically 2 different ways to attach a roof joist to the top wall plate. The joist can be toe nailed into the top plate or a joist bracket can be used. If you decide on a shallow pitch porch roof use 2 by 6 foot rafters.

Secure it with a joist hanger using the hammer and nails. To cut sloping rafters for a house attached patio roof lay a rafter board so it rests on its edge on both the ledger and the beam parallel to the ledger. Some building codes around the country require the use of a hurricane tie also shown above to add extra reinforcement for holding down roof trusses in the event of very strong winds. Another great way of attaching the truss end to the top wall plate is to use a simpson fastener shown in the picture above which you can find at your local lumber store.

The porch roof may match the pitch of your home or have a more shallow roof pitch. Then force the rafter s tip snugly against the house wall. Repeat this step to attach the remaining trusses. Joist hangers can help you mount each rafter to the house.

Temporarily nail or brace the ledger in place positioned and leveled at the desired height. Toenail a truss into the top of the wall plate by nailing through the sides of the bottom chord at a 30 degree angle.