I pay to park my car in the garage in the building where I live. If my car is damaged, is the building owner responsible??

I pay for a parking spot in the garage where I live. This garage is not maintained at all. When it rains outside, water leakes all over my car inside. The spots where it has been leaked on is creating stains on my paint that can not be removed. It is ruining my paint job. I have the only spot in the garage that leakes. When I signed the agreement to park in the garage I didn't know I would be parking in these conditions or in that specific spot. In the agreement the building owner says that he will not be liable for water damage. Is the building owner still responsible?? It is much more than water damage. The building is deteriorating and that mixes with the leaking water to damage my paint. Is the owner responsible??