How To Fix Roof Trusses

Determine the size of the roof truss to be repaired.

How to fix roof trusses.

Fixing roof trusses to a wall plate requires a small amount of carpentry knowledge such as the abilities to read a tape measure and operate a framing square. When a truss becomes damaged cut or modified there is a chance of a structural overload or that they will not perform properly. Inspect and assess the damaged section of timber and determine where it needs to be cut to prop the timber along it s length using suitably sturdy props such as acro props once supported cut off the damaged end leaving only solid un damaged timber now. When working in tight and cramped quarters in the attic be careful where you step.

However you can create a temporary solution by following the steps below. Driving nails into it might make it worse place. Glue a piece of 1 rigid styrofoam to the plywood. Trusses come in different lumber widths 2 by 6 or 2 by 8.

If the roof truss has a small crack you will be using the two wooden boards to patch it up but if the crack is much more severe you should use the steel plates because they offer much stronger support to the damaged truss. To keep the plywood from cupping under the load 2x4 squash blocks were to be inserted between the top and bottom chords. After measuring the damaged area between your roof trusses or rafters cut a piece of 1 2 plywood that will cover the. For typical roof trusses used in light frame construction bolts are usually not used because of spacing requirements.

Sometimes structural screws are also used for truss repairs. To reinforce the ends of the trusses 3 4 inch plywood gussets were to be attached to both sides of each truss with 10d nails 3 inches on center on all chords. When using nails to joint truss members it is also necessary to use lumber plywood or oriented strand board osb to join the members. If a lot of trusses are damaged or one has been significantly modified or cut then consulting a engineer is wise.

Using a speed square square the marks across the wall plate and place an x on the marks. The first thing you need to do is to assess the damage. Cut two pieces of lumber 4.