How To Attach Roof Joists To Wall

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.

How to attach roof joists to wall.

Toenail a truss into the top of the wall plate by nailing through the sides of the bottom chord at a 30 degree angle. The porch roof may match the pitch of your home or have a more shallow roof pitch. Using a block of wood as a ruler mark the ends for cutting. The bracket is a better idea for the fact that is prevents any type of warping or rollover of the joist when it is under heavy load.

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. Set the roof truss on each mark. Secure it with a joist hanger using the hammer and nails. If it is impossible to attach the ledger to a floor joist then fasten the ledger to wall studs which are generally located on 16 inch or sometimes 24 inch centers and doubled up around doors windows and other openings.

Measure and mark the location of the roof trusses. There are basically 2 different ways to attach a roof joist to the top wall plate. 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 positioning of your rafters will depend on the pitch of the porch roof.

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. As with rafter style roofs toenailing is one of the most common ways of attaching a truss style roof to a wall plate. Repeat this step to attach the remaining trusses. Use screws to secure the rafter to the sill plate.

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.