Input length and width of area to be insulated.
Calculating insulation needed for attic.
For example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3.
Click the button to calculate the depth in inches and pounds of total insulation required for this job.
The r value for most insulation materials has already been calculated and is displayed on the container so you don t have to know how to calculate it.
Refer to the project guide for more information on determining the right r value for your home.
First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.
What you do need to know is the recommended r value for your home so that you can use enough material to meet the recommendation.
Use these insulation calculators to estimate how much insulation you may need and how much you could save on your energy bills.
Click the button to calculate the depth in inches and pounds of total insulation required for this job.
This calculator is to be used as an estimating tool only.
These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.
This calculator is to be used as an estimating tool only.
Greenfiber insulation calculator easy to follow steps for calculating the perfect amount of insulation needed for your project.
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.
Use our roll insulation calculator to determine how much insulation you need to purchase for your home.
Input length width and desired r value of the area to be insulated.
Input length width and desired r value of the area to be insulated.
Inspecting your attic insulation.
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.