What should not be used to connect or install dryer exhaust ducts?

The recommended methods for connecting or installing dryer exhaust ducts emphasize the importance of maintaining a seamless airflow while ensuring proper safety and efficiency in the ventilation system. Using sheet metal screws or fasteners to connect dryer exhaust ducts can create obstructions within the duct system, leading to the accumulation of lint and debris. This buildup poses significant risks, including fire hazards and reduced efficiency in the dryer’s operation.

The materials used for dryer exhaust ducts should facilitate smooth interior surfaces to minimize airflow resistance. Unlike sheet metal screws, alternatives such as smooth duct connections or specially designed connectors can provide a more secure and efficient installation. Moreover, when adhesives, welds, or cable ties are used, they generally do not create the same amount of airflow disruption and tend to be more compliant with duct installation guidelines.