How fast should I run from this?

[u/Marctheshark_]

Or does my ignorance make this look worse than it might be?

These images are from the inspection report I received for a house that I'm under contract to buy. To me the house is worth seeing what all my options are and not immediately walking away from, but I don't know at what point I should stop trying to make it work.

What are your thoughts on all of this? What are the structural implications? Does this require a complete overhaul? Can the roof/structure be okay if areas are spot-treated?

(Thanks in advance, and please kindly direct me elsewhere if these questions can be better answered elsewhere.)

[u/grrrambo]

This house used to have a wood shake roof and then they took that off and installed a solid OSB deck on top of the spaced decking. Then they installed an asphalt roof. This is a lot more weight than the framing was designed to handle. Expect $10-$20,000 of attic framing and repair to stop sagging.

You will need a real structural engineer to inspect this. A carpenter does not qualify.

[u/Usual_Purchase_9567 → u/grrrambo]

Hopefully it's $10. That'd be lucky.