Project size in ft 2 bags of greenfiber.
Calculating insulation for attic.
Input length width and desired r value of the area to be insulated.
The length of the area feet inches the width of the area feet inches the coverage of one bag cubic feet the r value per one inch of thickness of the insulation settled the desired r value.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
This calculator is to be used as an estimating tool only.
The cost to insulate an attic starts at 1 68 3 25 per square foot but can vary significantly with site conditions and options.
Insulation calculation once you have determined which r value you need you can calculate how much insulation you need.
Click the button to calculate the depth in inches and pounds of total insulation required for this job.
See professionally prepared estimates for attic insulation work.
Input length width and desired r value of the area to be insulated.
Unfinished attic insulation calculator.
This calculator is to be used as an estimating tool only.
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 you don t know enter your attic s dimensions and square footage will be calculated for you.
This calculator is to be used as an estimating tool only.
Input length and width of area to be insulated.
The cost of one bag.
Just follow the steps.
Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live.
Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.
Get fair costs for your specific project requirements.
Enter the square footage of your attic.
Refer to the project guide for more information on determining the right r value for your home.