Multiple these two measurements to arrive at a square footage number.
How to measure the attic for insulation square footage.
For example an attic that measures 40 feet by 60 feet.
Click the button to calculate the amount of insulation in square feet and man hours wall and ceiling fiberglass insulation needed for this job.
If the wall cavity is open measure from the inside edge of one corner stud to the inside edge of the opposite corner stud.
You determine this by multiplying the length x width of the space.
Click the button to calculate the depth in inches and pounds of total insulation required for this job.
Insulation input length and width of area to be insulated.
This calculator is to be used as an estimating tool only.
Input length width and desired r value of the area to be insulated.
Measure the length and width of the attic space using a tape measure.
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.
If you re laying the foil down on top of existing attic insulation on the attic floor then you just need to know the square footage of the attic area you re covering.
Measure the width of one exterior wall from inside the house.
If you don t know enter your attic s dimensions and square footage will be calculated for you.
Enter the square footage of your attic.
Square feet needed 10 x 25 250 m therefore the approximate square feet of insulation material needed is 250m.
Input length width and desired r value of the area to be insulated.
Click the button to calculate the depth in inches and pounds of total insulation required for this job.