For more detailed information on insulation in your part of the country and recommended insulation r value for attics walls and floors.
Calculating attic insulation r value.
Insulation level are specified by r value.
Fiberglass and other insulation.
How to calculate existing r value in an attic 1.
Inspecting your attic insulation.
Access the attic through the pull down ladder already installed in your home or with a stepladder placed so you can.
Department of energy website.
Click the button to calculate the approximate r value for this job.
The higher the r value the greater the insulation performance.
The higher the r value the better the thermal performance of the insulation.
Wear a dust mask gloves and a long sleeved shirt when working with insulation.
R value is a measure of insulation s ability to resist heat traveling through it.
Input depth of existing blown in insulation in inches.
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.
When determining how much insulation you need don t guesstimate calculate.
This calculator is to be used as an estimating tool only.
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.
R value measures how well certain building insulation materials can resist heat.
First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.