What is a potential consequence of improper attic ventilation?

Improper attic ventilation can lead to insulation failure because inadequate airflow can cause the temperature in the attic to rise significantly. When insulation becomes excessively hot due to trapped heat, its effectiveness can be compromised. This can lead to a decrease in thermal resistance, making it harder for the insulation to keep the living spaces comfortable and energy-efficient. Eventually, this can result in higher energy costs, decreased comfort, and even potential damage to the building structure due to moisture buildup, as improperly ventilated attics may trap humidity, which can further deteriorate insulation material over time.