The r values of the carpet and padding add together for a total r value.
Carpet padding with r value.
Adding these two together will produce a r value that can exceed 2 0.
A cushion with an r value of 2 and a carpet with an r value of 1 would have an r value of 3 for the composite.
Some carpet and padding combinations can measure an r value of over.
For radiant floor heating you want the total r value to be as low as possible lower than 4 0.
When you add both the r value of the carpet and the pad together you will get the complete r value and insulation value added to your home.
Having explained the science how can this information help make sound floor covering decisions in terms of energy efficiency.
In most cases floor covering will be used in the insulation mode.
For example wool carpet rates a maximum r value of 2 1 while other types of carpet can rate as low as 0 7.
For some homeowner s the sleek look of tile is more important than heat.
Although carpet is not.
While r value is an important factor to consider when choosing a flooring material you must also consider your aesthetic preferences.