However this is often not a simple process.
Attic trusses gusset plate pulled back.
Sometimes an engineer will specify a metal replacement plate with nails.
I wasnt sure if the cracks in the garage walls were related to he gusset plates.
House built in 2005 garage has poured foundation small cracks on both side walls that go all the way thru foundation to outside of house.
These are usually much larger than the metal plate being replaced.
First remove the gusset plate that has partially or fully pulled away from the two pieces of wood.
But what really got me was when i got into the attic above the garage.
It s a sob and the plate gets mangled in the process.
Metal connector plates can sometimes be pressed back when the teeth are still in alignment with the original holes.
Use a pneumatic nail gun and nails to attach your gusset on both sides of the wood pieces.
For truss repairs to be effective the gusset plates must be in contact with the wood members and the nails must extend through all members.
The size and nailing pattern will be specified by the engineer.
Because it s nearly impossible to reinstall the plate replace it with a 1 2 plywood gusset.
That many damaged trusses is unusual.
I would try to pull down on the top chord to see if the nails lineup with its current position which would indicate the damage was done before the roof sheathing was applied.