What can result from too much airflow in an attic?

The answer regarding reduced heating efficiency is correct because excessive airflow in an attic can lead to heat loss during colder seasons. Attics are designed to maintain a certain temperature balance. When there is too much airflow, it can carry away warm air that naturally rises from the living spaces below, resulting in a colder attic environment. This means that the heating system must work harder to compensate for the lost heat, leading to increased energy consumption and reduced efficiency.

In an attic setting, airflow is critical for moisture control, but balance is essential. While some ventilation is necessary to prevent humidity build-up and related issues, too much can disrupt the insulation's performance. Insulation relies on a fairly stable environment to keep heat in during winter months. When excessive airflow is present, it can undermine this insulation, making heating less effective. Consequently, this increased effort from the heating system can also elevate energy costs for homeowners.