To completely cover your attic floor with insulation out to the eaves you needto install raftervents also called insulation baffles.
Do i need attic baffles.
Attic rafter vent baffles are essential for the health of your roof.
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.
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.
From left to right air flows through the soffit vents up over the baffles allowing for the required roof venting.
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.
Warm air holds more moisture than cool air so the moisture we create in our homes from bathing and cooking travels to the attic.
Sometimes called rafter vents baffles provide ventilation and keep the insulation from blocking airflow through your attic.
An attic baffle is simply an item to regulate the flow of air aka required roof venting and impede it the insulation from interfering with each other.
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.
The picture below courtesy of the epa indoor airplus program which we provide builder verification services for helps show how the system works.
Baffles are a critical component to our attic insulation process that provides multiple benefits to a difficult construction aspect.
If you want to insulate the rafter bays rather than the attic floor in order to make the attic a heated space baffles are even more important for proper air circulation.
Learn more at the little shop of physics at colorado state university.
How much does it cost to install baffles.