Find Attic Area

Length x width of attic in feet 150 total sq.

Find attic area.

This number is often included on the vent label but you can also calculate it. There is a 22 foot by 26 foot attached non heated garage. Step 4 measure the height of your attic in feet. Of total vent space needed.

An attic may also be called a sky parlor or a garret because attics fill the space between the ceiling of the top floor of a building and the slanted roof they are known for being awkwardly shaped spaces with exposed rafters and difficult to reach corners. Step 5 multiply step 3 by step 4 by 1 3. Smaller spaces may be hard to access especially if you re carrying items to or from the attic. Multiply step 1 and step 2 together to get the area of the attic floor.

You want high quality insulation in your attic as it will ensure that the cool air from your air conditioner can t escape your home. The house measures 30 feet by 50 feet. Whether you plan on improving the ventilation in your attic or adding energy saving insulation you will need to accurately determine its actual size. Square footage relates to the floor area only and does not factor in the height of the attic space.

Homeadvisor is the simplest way to find and book attic and whole house fan repair services near you. Read millions of reviews and get information about project costs. And having insulation in your attic keeps the area at a consistent temperature. Federal housing authority recommends a minimum of at least 1 square foot of attic ventilation evenly split between intake and exhaust for every 300 square feet of attic floor space.

The nfva subtracts the dimensions of. For example if your attic height is 10 feet and your attic area is 800 then 10 800 1 3. Having insulation in your attic can help you save up to 20 in heating and cooling costs. Connect with the best attic fan repair contractors in your area who are experts in keeping your attic system running smoothly.

Let s use the following simple ranch house for an example. Ft divided by 150 equals 10 sq. Calculate the total vent area needed. Determine the net free ventilating area the attic vents you plan to install.

A 50 x 30 attic would have a total area of 1 500 sq. Here are a few guidelines for choosing the right area and cutting an appropriate access hatch to your attic. Ok to determine how much ventilation area you need for your house all you need to know is the square foot area of the attic to be ventilated. For example if your length is 40 feet and your width is 20 feet then 40 20 800 square feet.

Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge.