Insulation Calculator

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.

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