Q: Our condominium association CC&Rs state that plumbing problems that service only a single unit are the responsibility of the unit owner. If the main drain servicing multiple units is blocked it is the responsibility of the association.  My question is about damage caused by tree roots. The association has repaired driveways and sidewalks — servicing a single unit — that were lifted or cracked due to tree roots coming from the common area. The board considered these to be trip hazards.   Read the Q&A…………………………………