copy of the budget for my condo?

I bought a condo last June. The bldg is brand new but there have been some issues with the ventilation system. All unit owners are required suddenly to pay an additional sum to build the reserves back up because of legal fees related to the ventilation problem and other sponsor-related issues. I can't get more specifics out of the board members and I am told that the budget is not a "public document." Can I request a copy of the budget in writing? Am I entitled to see this? I want to know where the reserves have gone and how we got to this place of have low cash flow.