This can cause moisture buildup.
Air baffle attic insulation.
The picture below courtesy of the epa indoor airplus program which we provide builder verification services for helps show how the system works.
Without a wind wash barrier air enters the attic freely and flows above the insulation in the ceiling greatly reducing its r value.
In brief baffles are designed to provide a channel of air to flow through specific parts of your attic.
The beauty of attic baffles is that they are available from most home improvement stores and can be installed simply with a few staples if you want the diy approach.
Baffles establish a channel for air to circulate between the insulation and the roof sheathing.
The ado products durovent 23 1 2 in.
Attic baffles how they work.
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.
They are known are also known as wind baffle insulation baffles rafter vents or venting chutes.
Sometimes called rafter vents baffles provide ventilation and keep the insulation from blocking airflow through your attic.
Accuvent acts as an all in one wind wash barrier and vent.
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.
They are usually made from cardboard or rigid foam board or polyvinyl chloride.
Rafter vent with built in baffle helps keep air moving in your attic.