Q. I am on the board of a midsize condominium building and a top floor unit has two leaks in the ceiling. It has been determined that the cause of the leaks is condensation around air-conditioning ducts due to improperly insulated duct work relating to the unit’s air-conditioning system. Each unit has its own air-conditioning system on the roof. Is the repair cost a unit owner or association responsibility?   Read the Q&A…………………………………..