Where must baffles be installed in a roof structure?

Baffles are installed in a roof structure to ensure proper ventilation and to prevent insulation from blocking airflow. The correct installation point for baffles is all the way to the ridge, as they help to create a designated pathway for airflow from the soffit vents (located at the eaves) to the upper portions of the roof. This configuration allows cooler air to enter from the bottom and warm, moist air to exit at the ridge, which is essential in preventing moisture buildup and maintaining the energy efficiency of the building. By extending to the ridge, baffles effectively support the overall ventilation strategy of the attic, ensuring the roof cavity remains well-ventilated, thus protecting the integrity of the roofing components and insulation.