Re: Ceiling Fan Dilemma
I agree with ed21 as this sounds like 'cross-bracing' that is used when the trusses are set and the ceiling joists are framed. This keeps everything 'square' during the framing process and at this point, they really don't serve any purpose. It just isn't cost effective to go back and remove them after the fact. IF, that is what you are looking at, you should be able to remove them without any danger to the structure.
All the best, Irishmist
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