Warm weather also brings more open doors, whether to get some fresh air, or when dock doors are left open longer than usual. Many cooled, frozen, and refrigerated areas can benefit from insulated curtain barriers over other options as the cold air can be contained to specific areas, and at separate temperatures to protect inventories from spoiling or becoming damaged. With the proper input of air conditioned air, insulated industrial curtain walls retain the temperature and humidity levels required to store, protect and even produce temperature-sensitive products in manufacturing facilities.