What’s the inside scoop on R-Value?
R-Value is a measurement of how well insulation performs against conductive heat loss. It represents resistance to one square meter of the insulation to a ONE DEGREE TEMPERATURE DIFFERENCE. In other words, in a laboratory setting, a piece of insulation is placed between a warm surface of, say, 72 degrees, and a cool surface of 71 degrees. The time it takes for the cool surface to warm up to 72 degrees is the basis for how R-Value is calculated. This test does not take the real world setting into account, like humidity, wind, moisture, or the fact that rarely is a house only 1 degree cooler or warmer than the outside temperature. So what does all of this mean to you, the home owner? Not a darn thing. Even though we know what it actually means, unfortunately you still have to meet the building codes required for your area. However, that does not mean that you can’t also use what actually works too, like rFoil and No-Tear. So make sure you meet your building codes, but then add the produc
