Measure the length and width of the attic space using a tape measure.
Approximate square footage of an attic.
Now that you have the footprint or square footage of the attic space multiply the total roof square footage by the applicable pitch factor to complete your estimate for the amount of foil you will need to cover the roof slopes.
Set project zip code enter the zip code for the location where labor is hired and materials purchased.
Step 1 create a rough sketch of your attic on a piece of paper.
With a tape measure and some simple mathematical formulas you can easily calculate your attic s square footage.
However an attic usually doesn t have straight walls.
On average you can expect to pay between 1 25 to 2 00 per square ft.
If the space includes irregular shapes such as triangles mark these off so.
For a basic project in zip code 47474 with 500 square feet the cost to insulate an attic starts at 1 68 3 25 per square foot.
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Will usually cost about 1 600 2 700.
The roof pitch or roof slope is usually shown as a ratio to 12 i e 1 12 4 12 12 12 etc.
How to calculate square footage for rectangular round and bordered areas.
Actual costs will depend on job size conditions and options.
If you want to heat or cool your attic space calculating its cubic footage is necessary to determine adequate ventilation.
Enter measurements in us or metric units.
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.
An average size attic of 1 200 square ft.
This free roofing calculator estimates the area of a roof and the amount of materials required to replace or build said roof.
The average cost per square foot is between 0 64 1 19.
So for a 500 square foot area your estimate will vary between 145 to 200 if you do it yourself.
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.
For a professional job add between 150 to 300 for labor and you re looking at around 300 to 500 for 6 hours of work.
The formula for figuring out the cubic footage of a rectangular solid like the interior of a room is length times width times height.
To install attic insulation and material cost for cellulose fiberglass with a r value of.
R 30 to r 60 insulation will cost between 0 15 to 0 65 cents per square foot.
Calculate square feet meters yards and acres for flooring carpet or tiling projects.
Multiple these two measurements to arrive at a square footage number.
This will give you a visual representation of the dimensions of your attic for reference.
Calculate the square footage of your attic.
