Access the attic through the pull down ladder already installed in your home or with a stepladder placed so you can.
Calculating attic insulation r value.
To find the r value of the existing insulation in your attic multiply the number of inches of insulation by the r value for your particular type.
Click the button to calculate the approximate r value for this job.
R value is a measure of insulation s ability to resist heat traveling through it.
Wear a dust mask gloves and a long sleeved shirt when working with insulation.
This calculator is to be used as an estimating tool only.
When determining how much insulation you need don t guesstimate calculate.
For more detailed information on insulation in your part of the country and recommended insulation r value for attics walls and floors.
Inspecting your attic insulation.
The higher the r value the better the thermal performance of the insulation.
The higher the r value the greater the insulation performance.
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.
Recommended home insulation r values.
Go to the energy savers insulation page on the u s.
The table below shows what levels of insulation are cost effective for different climates and.
Input depth of existing blown in insulation in inches.
Fiberglass and other insulation.
Know exactly how much you need with our project calculators.
Department of energy website.
How to calculate existing r value in an attic 1.