Measure the width of your attic space in feet.
How do i know my attic square footage.
Multiple these two measurements to arrive at a square footage number.
Measure the length and width of each square and rectangular area of the attic floor and note the dimensions on.
Extra areas to consider.
Typically the square footage of the home plus 400 ft for a 2 car garage and add any.
The calculator cannot account for complex shapes based on a measurement of square footage alone.
Take this number of square feet and divide it by 600.
This will give you a visual representation of the.
How to calculate the square feet of an attic step 1.
Divide by 12 and that is your measurement in feet.
Take the total amount of square feet in your home.
If you measured in another unit of measure do the following to convert to feet.
If your house is well insulated and energy efficient you can estimate down.
Calculate the square footage of your attic.
Step 3 multiply step 1 and step 2 together to get the area of the attic floor.
Create a rough sketch of your attic on a piece of paper.
Your attic floor was probably built with dead loads in mind.
You simply add up the nfas of all your vents and divide that number by the area of the attic to determine whether you re within the 1 150 ratio.
Dead loads are things that do not move.
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.
Once you decide which install method is best for your home it s time to measure the.
If you measured in feet inches divide inches by 12 and add that to your feet measure to get total feet.
Live loads are people and animals and tangentially the things used by people.
If you measured in feet skip to calculate the area as square footage.
Determining the attic footprint.
Boxes trunks suitcases etc.
For example if your length is 40 feet and your width is 20 feet then 40 20 800 square feet.
How to measure your attic choose an install method first.
Make sure to exclude the square footage of your attic basement garage unless you are using any of them as living spaces.
The area calculator can be used to calculate the area of a variety of simple shapes that together can comprise the area of the roof.