Repairing Damaged Roof Trusses

Standard repair detail to replace a missing stud on a gable truss.

Repairing damaged roof trusses.

An engineer was called in to assess the damage to the trusses and we were called in to do the structural repair to the trusses. 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. Four main trusses were damaged in the fire along with a couple of others. Apply the second patch to the other flat side of the truss and in line with the first patch.

The trusses needed to be lifted to their original height and cut flush with the inside face of the cmu wall with the rotted sections removed. Standard repair detail for damaged or missing plates on a gable stud. The engineer s recommendations were specific. It takes many nails to equ al the capacity of a typical connector plate.

Standard repair detail to pad top chord to match roof plane 2 1 2 minimum. Standard repair detail to replace a missing stud on a gable truss. 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 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.

The trusses are covered with plywood and then dried in. The roof truss will regain its strength with the repairs. Secure evenly across the board with wood screws. The first thing you need to do is to assess the damage.

If a lot of trusses are damaged or one has been significantly modified or cut then consulting a engineer is wise. The basics of the process are as follows.