Do I Need Attic Baffles

Attic rafter vent baffles are essential for the health of your roof.

Do i need attic baffles.

Warm air holds more moisture than cool air so the moisture we create in our homes from bathing and cooking travels to the attic. To completely cover your attic floor with insulation out to the eaves you needto install raftervents also called insulation baffles. Rather than baffle you with too much information here s why you need attic baffles. Warm air in your home rises ultimately reaching your attic.

Raftervents ensure the soffit vents are clear and there is a channel for outside air to move into the attic at the soffits and out through the gable or ridge vent. From left to right air flows through the soffit vents up over the baffles allowing for the required roof venting. The picture below courtesy of the epa indoor airplus program which we provide builder verification services for helps show how the system works. 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 the road.

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. Attic baffles how they work. Putting baffles in your attic is a crucial step in installing attic insulation. Learn more at the little shop of physics at colorado state university.

How much does it cost to install baffles. Sometimes called rafter vents baffles provide ventilation and keep the insulation from blocking airflow through your attic. Soffit vents are the small metal or plastic grates you probably have seen under the eaves of houses. They allow the fresh air to travel up under the roof to the ridge or gable vents keeping the roofing materials dried out and in good working order.