Which statement about venting roofs is false?

The statement that venting roofs helps indoor air quality is misunderstood in the context of roof venting. While ventilation in homes does contribute to better indoor air quality by allowing fresh air to circulate and reducing the buildup of indoor pollutants, it is not primarily the function of roof ventilation. The main purposes of venting roofs are to manage temperature within the attic space, prevent the accumulation of moisture, and mitigate issues related to extreme weather conditions, such as preventing ice dams in winter by keeping the roof surface temperature more uniform.

Venting roofs effectively reduces attic temperature, especially during summer, which helps keep the overall home cooler and can reduce energy consumption for air conditioning. Additionally, by lowering the attic temperature, it helps in preventing ice dams during the winter months. Thus, while improved indoor air quality might be a secondary benefit of proper ventilation in a home, it is not a direct result of roof venting specifically.