How much space should baffles allow for air flow?

Baffles are crucial components in insulation and ventilation systems, particularly in attics. They help direct airflow from the soffit vents to the ridge vent, preventing insulation from blocking the airflow. The recommended space that baffles should allow for air flow is at least 1 inch. This minimum space is vital to ensuring sufficient ventilation, which helps to maintain an ideal climate in the attic and prevents problems like moisture buildup, which could lead to mold growth and structural damage.

Allowing at least 1 inch of space also ensures that the airflow is not overly restricted, promoting better air circulation. Proper airflow is essential for effective temperature regulation in the attic, reducing energy costs associated with heating and cooling.

The options indicating a space of 2-3 inches or half an inch would either be excessively large or insufficient for optimal airflow. Moreover, the absence of a specific requirement is misleading, as building codes and best practices emphasize the need for adequate ventilation to mitigate potential issues in the attic. Thus, having the correct minimum space helps comply with these standards, ensuring lasting effectiveness in insulation and ventilation systems.