Garage Doors

We have a renter in our Town House group of 12. They have downsized from a large property and brought all their bits and pieces with them and filled their garage. He runs a business from the garage and to give him ventilation as he smokes he leaves the garage door open all day. Sometimes half open which i believe will damage the opening mechanism and we will all be responsible for the repair. The situation of his Town house means that all but one of the residents have to drive or walk passed it to gain access to the road. can anyone tell me what the regulations re garage doors are. The Strata manager ignores this question.