Air Baffle Attic Insulation

Find a diagram of common air leaks here here s a quick primer on fixing draft prone spots.

Air baffle attic insulation.

It can be cut to fit most joist spaces and is an affordable way to meet energy code requirements for air flow. Sometimes called rafter vents baffles provide ventilation and keep the insulation from blocking airflow through your attic. Putting baffles in your attic is a crucial step in installing attic insulation. The number one prep step.

You can situate the baffles where the circulation is mainly required. Use it between rafters to create an air channel through insulation to help keep air flowing freely in your attic. Water resistant and durable. Ado products durovent 23 1 2 in.

It is a fairly easy process that will make a world of difference in assisting your insulation and keeping your home protected from rot which can save you a substantial amount of money down. Without an attic baffle there will not be any air space for fresh air to enter the attic from the soffit vents. Cathedral vaulted or any ceiling that has insulation blocking the airflow from the soffit vents to the attic needs an attic baffle in each rafter bay. Without this air movement any moisture that gets into.

Basic functions of baffles baffles are chutes that when installed properly can provide a channel for air to flow from your exterior soffit vents up into your attic space. The gable of your house must have openings to allow fresh air to enter and stale air to exit. The picture below courtesy of the epa indoor airplus program which we provide builder verification services for helps show how the system works. Gaps in the attic or between the lower floors and the attic will let heated or cooled air escape to the great unconditioned outdoors making any insulation you add essentially useless.

Baffles are a critical component to our attic insulation process that provides multiple benefits to a difficult construction aspect. For improved air circulation in the attic install the durovent 22 in. The main function of an attic baffle is to draw the air in from outside your home and allowing it to circulate around your attic. Run baffles the entire length of the rafter bay from the soffit vent to the ridge vent.

Attic ventilation system with built in baffle 10 carton install between rafters to provide an air channel through insulation to help keep air flowing freely. Without fresh air from the soffit vents your roof top vents such as. That airflow is intended to churn the stale air in. How to install attic rafter vents and baffles.