RED Calc Free

v1.0, Legacy Tool

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Summary: Calculates a single R-value for an area made up various materials with distinct R-values. This method assumes that heat flows through each of these distinct areas independently (in parallel), as opposed to flowing from one to the other. See Tool Guide. Click on any input or result label for help. By using this tool (application) you agree to the Terms of Use.

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This legacy tool is NOT optimized for mobile devices. Stay tuned for the mobile-optimized version 2.0.