How To Attach Roof Trusses To Top Plate

Several connections are required to create a continuous load path starting with a hurricane tie or structural fastener connecting the roof framing to the top plates.

How to attach roof trusses to top 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. See photo at right the truss rafter is then fastened to the post with nails or bolts. 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. Walls that are constructed of concrete block that need to be covered with a roof will require the use of a ledger.

The connection between the trusses and the wall top plate is essential to the strength of your new roof. Getting the wall plates or top plates as they are sometimes called right is important because all the ceiling joists roof rafters hips etc. Will all be fixed to them. A ledger is a horizontal board that is attached to the top of the 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. They are cut to the same length as the brickwork they sit on a half lap joint is great for the corners to be fixed to. The ledger is needed to properly attach the perpendicular roof trusses to the top of the structure. Trusses rafters rest on a notched post another method employed by some contractors is to notch the structural post at the top and place the trusses or rafters on top of the notch.

The beam extends to the far end of the roof hanging over the trusses still sitting there. After setting the second truss in the same manner workers attach a ridge beam to the peak of both trusses. Toenail a truss into the top of the wall plate by nailing through the sides of the bottom chord at a 30 degree angle. For additional information the simpson strong tie high wind resistant construction application guide f c hwrcag offers a variety of options to resist roof uplift forces.