To limit the probability of an inability to adjust, or to properly adjust, the airflow from individual ducts, or an inability to balance the flow among the ducts, which could lead to an inability to maintain the minimum indoor air temperatures [see Sentence 9.33.3.1.(1)], which could lead to condensation, which could lead to deterioration, which could lead to compromised structural integrity of environmental separators or elements protected by such separators, which could lead to harm to persons.