Ther are a lot of things in this and Jimmy is correct in the use of the “who's responsible” document. It is very useful as a guide.
Your issue is more complex and deals with the law of nuisance overlayed with responsiblities of the OC in maintaining its property and then finally insurance issues.
The basics are that the OC must maintain its property. If it does not maintain its property and it casues damage then any resultant damage may also be the responsibility of the OC. This is where insurers step in some times.
If the damage is an 'insurable event” (like a burst pipe) then insurers will step in and pay for the repairs (including the resultant damage). Some insurers will indemnify 100% (including painting etc) others not. That is a contractural issue between the OC and its insurer.
The obligation the OC has to you is different.
Hope this helps. What you need to do is discuss it with hte executive committee and go from there. 