What is a problem with ridge covers in attic ventilation?

Ridge covers are critical components in attic ventilation systems, designed to allow for the escape of hot, moist air while preventing water and debris from entering the attic. The problem highlighted in the correct answer revolves around the installation and functionality of ridge covers.

When ridge covers are installed without a corresponding opening below, or if they are not precisely positioned over existing openings, they cannot effectively facilitate airflow. This can lead to inadequate ventilation in the attic, which can result in problems such as increased moisture levels, higher energy costs, premature roof failure, and the development of mold. Additionally, if the openings are too small, the limited airflow can further hinder the ventilation process, exacerbating the issues related to humidity and temperature regulation in the attic space.

Thus, understanding how ridge covers must align with ventilation openings is crucial for ensuring proper attic airflow and maintaining the health of the roof and the entire home.