R Value U Value

Understanding R Value vs. U Value: Thermal Conductivity Simplified

Did you know as R value increases, thermal performance improves? That is a simple concept to understand – bigger is better right?  Conversely, did you know that as U value decreases, thermal performance improves? These are fairly well understood realities, so it would not be surprising if your answer to both these questions is yes. Would you be surprised to know that they are actually a measurement of the same thing? Maybe not literally, but essentially. OK – maybe you do know this, but my guess is that we are starting to get some head scratching.

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