Enter your data into the fields where indicated.
Calculating attic insulation r value.
Click the button to calculate the approximate r value for this job.
Recommended home insulation r values.
The higher the r value the better the thermal performance of the insulation.
Inspecting your attic insulation.
This calculator is to be used as an estimating tool only.
This calculator is to be used as an estimating tool only.
Department of energy website.
Click the button to calculate the depth in inches and pounds of total insulation required for this job.
Access the attic through the pull down ladder already installed in your home or with a stepladder placed so you can.
Square feet of house or area to be insulated current and desired r value for insulation and type and cost of your energy.
The table below shows what levels of insulation are cost effective for different climates and.
Click the button to calculate the depth in inches and pounds of total insulation required for this job.
Insulation savings calculator use this insulation savings calculator to measure the financial impact of increasing your insulation performance.
Wear a dust mask gloves and a long sleeved shirt when working with insulation.
Fiberglass and other insulation.
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.
Input depth of existing blown in insulation in inches.
These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.
Insulation calculation once you have determined which r value you need you can calculate how much insulation you need.
First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.
Go to the energy savers insulation page on the u s.
How to calculate existing r value in an attic 1.
R value is a measure of insulation s ability to resist heat traveling through it.
Refer to the project guide for more information on determining the right r value for your home.
Insulation level are specified by r value.
Input length width and desired r value of the area to be insulated.
For more detailed information on insulation in your part of the country and recommended insulation r value for attics walls and floors.
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.