ICC Commercial Mechanical Practice Exam

When terminating a clothes dryer vent, screens may not be installed. Is this statement true or false?

1. True

2. False

The correct answer is: True

The statement is true. When terminating a clothes dryer vent, it is not recommended to install screens. This guideline is based on safety and efficiency considerations. Screens can trap lint and other debris, leading to blockages within the venting system. A blocked vent can cause the dryer to work less efficiently, resulting in longer drying times, increased energy consumption, and potentially creating a fire hazard due to lint build-up that is not being adequately vented outside. Moreover, codes and standards often specify that dryer vents should terminate with a louvered exhaust hood or similar device that allows for the easy exit of air while preventing the entry of pests and debris. Equipment manufacturers also emphasize the importance of a clear, unobstructed path for air to flow to ensure optimal performance and safety. Therefore, omitting screens at the termination point of dryer vents aligns with best practices in installation and maintenance.