The ends of the trusses are rotted out.
How to repair rotted roof trusses.
When replacing roof decking you first need to get rid of the old rotten section.
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.
They are a frame shaped trusses.
The engineer s recommendations were specific.
The truss ends are covered by roof but their underside is exposed to the elements.
If these have only small portions with rot you can repair using the boards.
If the old trusses are too bad theses may require placing new trusses or complete restoration of roof.
The rotted part is not structural supportive appears to be just decorative.
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 4 sides of the bldg.
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.
Place the 4 foot board against the flat side of the broken truss making sure that the same amount of patch rests on either side of the break or that the break is centered in the middle of the patch.
Attach the truss patches.
The basics of the process are as follows.
You may need to cut a little extra to expose enough of the trusses and make sure you get rid of all the rotten wood.
Check the old trusses.
No supportive structural areas are experiencing rot.
Set the depth of your circular saw to the thickness of the roof decking.