How Do I Know My Attic Square Footage

Make sure to exclude the square footage of your attic basement garage unless you are using any of them as living spaces.

How do i know my attic square footage.

Dead loads are things that do not move. Step 3 multiply step 1 and step 2 together to get the area of the attic floor. Take the total amount of square feet in your home. Once you decide which install method is best for your home it s time to measure the.

Boxes trunks suitcases etc. This will give you a visual representation of the. Your attic floor was probably built with dead loads in mind. Multiple these two measurements to arrive at a square footage number.

If you measured in feet skip to calculate the area as square footage. Create a rough sketch of your attic on a piece of paper. 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. If you measured in feet inches divide inches by 12 and add that to your feet measure to get total feet.

If your house is well insulated and energy efficient you can estimate down. 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. Measure the length and width of the attic space using a tape measure. 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.

How to calculate the square feet of an attic step 1. Using the aggregate area of these simple shapes can yield a more accurate roof area to be used with the roofing. The calculator cannot account for complex shapes based on a measurement of square footage alone. Extra areas to consider.

For example if your length is 40 feet and your width is 20 feet then 40 20 800 square feet. Measure the length and width of each square and rectangular area of the attic floor and note the dimensions on. If you measured in another unit of measure do the following to convert to feet. Take this number of square feet and divide it by 600.

Calculate the square footage of your attic. Live loads are people and animals and tangentially the things used by people. 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. Divide by 12 and that is your measurement in feet.

How to measure your attic choose an install method first.