This is a follow up from a previous question: (Is this a sign of my roof trusses sagging?)
Do you know how to use ratchet ties (or some other method) to fix sagging roof trusses?
So, this is a 2-storey brick veneer house, built 15 years ago, in south-eastern Australia. Carpernter 1 used some hoist from inside the house to push the ceiling up, then they put in place a hanging beam [i'm not sure this is the right term] for the left half of our roof. This didn't last long before the symptoms of sagging roof trusses began again. A few months later, Carpenter 2 came and temporarily used some ratchet ties, before putting in place some support beams [again, i'm not sure this is the right term] around the same area that Carpenter 1 worked on. This too didn't last long before the trusses began to sag again.
So I am thinking of using some ratchet ties and then just leaving them in place. This will allow me to re-adjust/re-tighten if need be in the future. Also I think I will place them all around my roof, instead of just one area like the previous carpenter. This is because the signs of sagging roof trusses are all around our roof.
The photo attached shows how a carpenter had placed the ratchet ties. But the photo only captures part of the image. I guess the top part of the image would have showed the ratchet tie over the rafter (which would be slanting at an angle here). Is this the right way to do it?
[I know people in my previous post told me to go to a structural engineer, but I am poor...we already tried some carpenters in the past, but it seems to have been a waste of money and effort with them...any help would be great guys, thanks in advance.]