R-Value in the HVAC World
R-value is a term that you commonly hear out of the mouths of HVAC contractors. So what is it, exactly? Well, R-value is a measure of insulation’s ability to resist heat traveling through it. Technically, it is calculated by taking the ratio of the temperature difference across an insulator over the heat flux through it. But all you really need to remember is the higher the R-value, the better the...
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