Old, spaced roof boards dangerous, bad, a deal breaker?
I'm buying an old duplex. The roof must have once been wood because the decking is old boards with even spacing between then, say an inch for every seven inches or more of board. The inspector thought there must be ply decking over the top of these boards but, alas, there isn't. The inspector, true to their reputation of half-assing it, did not so much as tap the exposed paper because, when I did, it was clear there was nothing more than paper and shingles. To be sure I screwed a screw driving through it.
So, is this a deal breaker? Are these kinds of roofs unsafe or otherwise "bad" for any particular reason?
Also, should I ask the inspector for my money back?
A cheap 3tab shingle might sag into a 1" gap, but it should be be a problem with a good dimensional shingle. What is the roof pitch. The greater the pitch, the less the problem, regardless of the shingle.