Attic Baffles How Many

Baffles provide a channel for air to flow through certain parts of the attic.

Attic baffles how many.

Baffles are a critical component to our attic insulation process that provides multiple benefits to a difficult construction aspect. Calculate how many rafter vents you need. Install attic baffles if the attic doesn t have attic baffles let s install them. 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.

Multiply those two numbers and then divide by 150 to get the vent space square footage. A 50 x 30 attic would have a total area of 1 500 sq. Length x width of attic in feet 150 total sq. Sometimes called rafter vents baffles provide ventilation and keep the insulation from blocking airflow through your attic.

That airflow is intended to churn the stale air in. How much vent space do you have. 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. To completely cover your attic floor with insulation out to the eaves you need to install rafter vents also called insulation baffles.

Of total vent space needed. The first step in determining how many rafter vents your home needs is to determine your home s vent space in square feet. Putting baffles in your attic is a crucial step in installing attic insulation. Calculate the total vent area needed.

Multiply the length of the attic times the width in feet to find the attic area then divide by 150 to find the total square feet of vent space needed. Moreover they provide clear and efficient air circulation which will keep your attic moisture and mildew free. Measure the length and width of the house in feet. Complete coverage of the attic floor along with sealing air leaks will ensure you get the best performance from your insulation.

The picture below courtesy of the epa indoor airplus program which we provide builder verification services for helps show how the system works. Staple each side to the roof deck spaced about every 4 inches. Baffles are also called wind baffles venting chutes rafter vents or insulation baffles. The outside edge of the baffle should be parallel to the exterior wall sheathing.

You ll need to crawl to the end of the eave and staple the baffle against the roof deck. Attic baffles how they work.