See professionally prepared estimates for attic insulation work.
Calculate square feet attic.
Create a rough sketch of your attic on a piece of paper.
Calculate or enter the square footage of the attic or area to be vented.
1 cubic foot is 12 x 12 144 cubic inches.
Finished attic square footage is included if an area has at least seven minimum feet of clearance.
If your roof is 1200 sq ft soffit floor space you will need 4 sq feet of roof ventilation.
Length x width of attic in feet 150 total sq.
This free calculator estimates the square footage of a property and can account for various common lot shapes.
Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator.
Measure the width of your attic space in feet.
How to calculate the square feet of an attic step 1.
Measure the length and width of each square and rectangular area of the attic floor and note the dimensions on.
Determine total cost given a rate per square foot or explore hundreds of other calculators covering topics such as math finance fitness health and more.
Of total vent space needed.
Next multiply the 4 square feet into cubic inches.
If you have on oddly shaped area such as an l shape split it into square or rectanglualar sections and treat them as two separate areas.
Step 3 multiply step 1 and step 2 together to get the area of the attic floor.
The homewyse attic insulation calculator.
Ft divided by 150 equals 10 sq.
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.
Covered enclosed porches can only be included if they are heated using the same system as the rest of the house.
Measure the length and width of the attic floor space to be ventilated.
Stairways and closet areas are included in the square footage length.
This will give you a visual representation of the.
Calculate the total vent area needed.
See typical tasks and time to insulate an attic along with per unit costs and material requirements.
In order to find the right calculator divide the attic floor space by 300 sq feet.
A 50 x 30 attic would have a total area of 1 500 sq.
Get fair costs for your specific project requirements.