Insulation Calculator
Determine insulation R-value needs and material quantities for walls, attics, and floors.
How to Use the Insulation Calculator
- 1
Enter area to insulate
Input the square footage of walls, attic, or floor.
- 2
Select R-value needed
Choose the required R-value for your application.
- 3
Select insulation type
Choose batt, blown-in, or spray foam.
- 4
View materials needed
See bags/rolls required and estimated cost.
💡 Tips & Tricks
- •Seal all air leaks before adding insulation — air sealing provides the biggest energy savings.
- •Never compress fiberglass batts — it reduces their R-value significantly.
- •Attic insulation provides the highest return on investment for energy savings.
Frequently Asked Questions
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