Find Attic Area
How to determine the number of attic vents 1.
Find attic area. Calculate the square footage of your attic. How to calculate the square feet of an attic step 1. Homeadvisor is the simplest way to find and book attic and whole house fan repair services near you. Remember the minimum area requirement when using a continuous system is a ratio of 1 300.
See how simple that was. Calculating a usable area of an attic can cause problems. 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. Length x width of attic in feet 150 total sq.
Read millions of reviews and get information about project costs. So in our example we will divide the 1 500 square feet by 300. Multiply step 1 and step 2 together to get the area of the attic floor. Now let s figure out how much ventilation space we need.
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. 1 500 square feet 300 5 square feet. Divide the attic s square footage by 150. The federal housing administration recommends 1 square foot of attic.
Step 4 measure the height of your attic in feet. It is worth remembering that the surface for insulation is not equal to the surface of an upper storey. Measure the area between trusses and simply head to your nearest home supply store and get shelves cut to fit the space or purchase shelves that specifically to fit into the slots. Cut that number in.
Ok so now we know the square footage of the attic area to be ventilated. Simply hang them and then load them up with storage containers. The exact result can be obtained by measuring the entire attic. For example if your length is 40 feet and your width is 20 feet then 40 20 800 square feet.
Connect with the best attic fan repair contractors in your area who are experts in keeping your attic system running smoothly. In order to accurately calculate its value you need to consider the dimensions of ceilings and slants. 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. Create a rough sketch of your attic on a piece of paper.
This will give you a visual representation of the. An attic may also be called a sky parlor or a garret.