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.
Find attic area.
It is worth remembering that the surface for insulation is not equal to the surface of an upper storey.
Create a rough sketch of your attic on a piece of paper.
An attic sometimes referred to as a loft is a space found directly below the pitched roof of a house or other building.
For example if your length is 40 feet and your width is 20 feet then 40 20 800 square feet.
How to calculate the square feet of an attic step 1.
Divide the attic s square footage by 150.
Simply hang them and then load them up with storage containers.
Length x width of attic in feet 150 total sq.
Connect with the best attic fan repair contractors in your area who are experts in keeping your attic system running smoothly.
Multiply step 1 and step 2 together to get the area of the attic floor.
See how simple that was.
The federal housing administration recommends 1 square foot of attic.
Step 4 measure the height of your attic in feet.
So in our example we will divide the 1 500 square feet by 300.
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.
Ok so now we know the square footage of the attic area to be ventilated.
Read millions of reviews and get information about project costs.
The exact result can be obtained by measuring the entire attic.
Homeadvisor is the simplest way to find and book attic and whole house fan repair services near you.
In order to accurately calculate its value you need to consider the dimensions of ceilings and slants.
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.
Measure the length and width of the attic space using a tape measure.
Remember the minimum area requirement when using a continuous system is a ratio of 1 300.
Cut that number in.
An attic may also be called a sky parlor or a garret.
This will give you a visual representation of the.
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 each square and rectangular area of the attic floor and note the dimensions on.
Calculate the square footage of your attic.
How to determine the number of attic vents 1.