Originally Posted by NMWildcat
Is the sealant/caulking good? Is the roof membrane good? Is the ceiling underneath good and not stained?
If yes to all that, I would be tempted to leave well enough alone and just watch it and see if it changes. If it's not broke, don't fix it
Unless we have a better idea of the "soft spot" we are guessing at best.
It's possible the membrane simply lifted (adhesive failure) from the roof platform and has some gap between it and the roof.
Then again, it could be completely rotten under it. We really can't tell from here.
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