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.
Calculate square feet attic.
Of total vent space needed.
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.
The cost to insulate an attic starts at 1 68 3 25 per square foot but can vary significantly with site conditions and options.
Finished attic square footage is included if an area has at least seven minimum feet of clearance.
Next multiply the 4 square feet into cubic inches.
Get fair costs for your specific project requirements.
A 50 x 30 attic would have a total area of 1 500 sq.
Ft divided by 150 equals 10 sq.
Measure the width of your attic space in feet.
Measure the length and width of the attic floor space to be ventilated.
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.
1 cubic foot is 12 x 12 144 cubic inches.
Calculate the total vent area needed.
Step 3 multiply step 1 and step 2 together to get the area of the attic floor.
Stairways and closet areas are included in the square footage length.
See professionally prepared estimates for attic insulation work.
In order to find the right calculator divide the attic floor space by 300 sq feet.
For example if your length is 40 feet and your width is 20 feet then 40 20 800 square feet.
If your roof is 1200 sq ft soffit floor space you will need 4 sq feet of roof ventilation.
Calculate or enter the square footage of the attic or area to be vented.
See typical tasks and time to insulate an attic along with per unit costs and material requirements.
This will give you a visual representation of the.
Covered enclosed porches can only be included if they are heated using the same system as the rest of the house.
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.
The homewyse attic insulation calculator.
This free calculator estimates the square footage of a property and can account for various common lot shapes.
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.