Insulation Calculator

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Calculate R-Value
Project Details
Results

If you're hot, cold or anything in between, Johns Manville insulation can help you feel just right.

From attics to basements and kitchens to bedrooms, this insulation calculator tool will help you find the insulation that fits your needs.

Steps:

1. Find the recommended R-value for your project. (What's an R-value?)

2. Collect your project details. For this you'll need measurements of your project including stud depths, stud widths and total square feet of the project.

3. Calculate how much and what type of JM insulation you need.

4. Get results and tips on recommended supplies or tools you'll need.

5. Find out where to buy your products.

NOTE: This calculator currently provides information about U.S. R-value recommendations only.

R-Value Calculator

The first step is determining the recommended R-value of your insulation project.

Recommended R-value is based on your climate zone and the type of project you are planning. Use the tools below to calculate your R-value.
1. County, State
Enter the county and state where your project is located.
(example: Jefferson, CO)

For a recommendation on the type and quantity of products you can use for your project, enter the details below and then hit Next.
Insulation Calculator Images - Insulating Wall 550x733

Recommended JM Products For Your Insulation Project

Your overall recommended R-value for this project is . Any of the below products could be used for your -square-foot project. Meeting the recommended R-value for your project could make you eligible for tax credits.

BY ACCESSING OR USING THE SITE IN ANY MANNER, YOU ACKNOWLEDGE THAT YOU HAVE READ AND AGREE TO BE BOUND BY THESE TERMS AND CONDITIONS ("Terms"). If you do not agree to all of the Terms, you are not authorized to access or otherwise use this site (the "Site") and should not use it at all.

The Insulation Calculator is intended to be used as an estimate only. You should consult your local building code official for current insulation code requirements in your area. Nothing on this website should be taken to constitute professional advice or a formal recommendation.

You assume full responsibility for using the information on this site, and you understand and agree that Johns Manville and its affiliates are not responsible or liable for any claim, loss, or damage resulting from use by you or any other user of this Site. While we try to keep the information on the site as accurate as possible, JOHNS MANVILLE DISCLAIMS ANY WARRANTY CONCERNING ITS ACCURACY, TIMELINESS, AND COMPLETENESS, AND ANY OTHER WARRANTY, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. THIS DOES NOT AFFECT THOSE WARRANTIES WHICH ARE INCAPABLE OF EXCLUSION, RESTRICTION OR MODIFICATION UNDER THE LAWS APPLICABLE TO THIS AGREEMENT.

BY USING THE INSULATION CALCULATOR, YOU AGREE THAT NEITHER JOHNS MANVILLE, ITS AFFILIATES NOR ANY OF THEIR RESPECTIVE EMPLOYEES, AGENTS, THIRD PARTY CONTENT PROVIDERS OR LICENSORS WARRANT THAT THE INSULATION CALCULATOR OR THE SITE WILL BE ERROR FREE; NOR DO THEY MAKE ANY WARRANTY AS TO THE RESULTS THAT MAY BE OBTAINED FROM USE OF THE INSULATION CALCULATOR OR THE SITE, OR AS TO THE TIMELINESS, SEQUENCE, ACCURACY, RELIABILITY, COMPLETENESS OR CONTENT OF ANY INFORMATION, SERVICE, OR MERCHANDISE PROVIDED THROUGH THE INSULATION CALCULATOR.

EXCEPT AS SPECIFICALLY PROVIDED IN THESE TERMS OR WHERE THE LAW REQUIRES A DIFFERENT STANDARD, YOU AGREE THAT JOHNS MANVILLE IS NOT RESPONSIBLE FOR ANY LOSS, PROPERTY DAMAGE OR BODILY INJURY, WHETHER CAUSED BY ACCESS TO OR USE OF INSULATION CALCULATOR OR THE JOHNS MANVILLE WEBSITE. TO THE MAXIMUM EXTENT PERMISSIBLE UNDER APPLICABLE LAW, JOHNS MANVILLE WILL NOT BE RESPONSIBLE TO YOU OR ANY THIRD PARTY CLAIMING THROUGH YOU FOR ANY DIRECT, INDIRECT, SPECIAL OR CONSEQUENTIAL, ECONOMIC OR OTHER DAMAGES ARISING IN ANY WAY OUT OF THE INSULATION CALCULATOR.

You agree to defend, indemnify and hold harmless Johns Manville, its affiliates and their respective directors, officers, employees and agents from and against all claims and expenses, including attorneys' fees, arising out of your violation of these Terms or misuse of the Insulation Calculator or this Site, including such violation or misuses conducted by your employee or agent, if applicable.