Carpet R Value

If veiwing this page on a phone it s best to turn the phone to view in landscape mode r values of flooring materials.

Carpet r value.

For radiant floor heating you want the total r value to be as low as possible lower than 4 0. Most of the time the r value is printed on the label of the product in the store. R values of different flooring materials. R values of different flooring materials.

Having explained the science how can this information help make sound floor covering decisions in terms of energy efficiency. R value is calculated not from the actual materials as much as from the thickness of the carpet. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. If the r value for your carpet is not labeled or readily available it can be easily calculated by multiplying the carpet s thickness in inches but 2 6.

In most cases floor covering will be used in the insulation mode. While r value is an important factor to consider when choosing a flooring material you must also consider your aesthetic preferences. The r value is based less on what the carpet is made of than on the actual thickness of the carpet. Adding these two together will produce a r value that can exceed 2 0.

Although carpet is not. Material thermal insulation r value m2k w concrete 10 cm thick 0 07 0 08 carpet 1 cm thick 0 18 fibreglass insulation 1 cm thick 0 22 thermal resistance of materials1 the r value is used to measure a material s resistance to heat transfer or thermal resistance the higher the r value the greater the insulating effect. 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. 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 example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3. The insulating value of the padding must also be combined with the r value of the installed carpeting. R value is the thermal resistance rating of a carpet. Often you can find the r value on the label when you are shopping for a new carpet but if it s not on the label you can figure out the carpet s approximate r value on your own.

From 8 to 17 times the r value carpet with cushion represents a clear advantage in insulation capability over hard surface flooring. These numbers will vary from material to material. In this case choose cushion and carpet.