Although carpet is not.
Carpet pad r factor.
Urethane padding has the highest r value of all padding choices.
R value is calculated by dividing the material s thickness by its k value.
R values of different flooring materials.
Because of this thickness dependency r values can only be compared at the same material thickness.
For some homeowner s the sleek look of tile is more important than heat.
For example wool carpet rates a maximum r value of 2 1 while other types of carpet can rate as low as 0 7.
The r value rating is anywhere from 1 05 to 2 15 dependent upon the thickness of the pad.
An r factor in carpeting is a measurement of the carpet padding s resistance to heat flow.
Adding these two together will produce a r value that can exceed 2 0.
It is measured by pounds per cubic foot and those in the 6 pound and 8 pound range provide comfort and durability for residential uses.
These numbers will vary from material to material.
The insulating value of the padding must also be combined with the r value of the installed carpeting.
Carpet pads with a higher r factor will trap heat more successfully preventing the flow of warmth through the material so that all your heat doesn t seep out through your floors.
If veiwing this page on a phone it s best to turn the phone to view in landscape mode r values of flooring materials.
While r value is an important factor to consider when choosing a flooring material you must also consider your aesthetic preferences.
Features and types of carpet pads.
For instance a material one inch thick with a k factor of 0 2 btu in hr ft2 o f would have an r value of 5.
The carpet padding also effects room temperature and some may say that the padding under the carpet does just as much or more insulating than the actual carpet itself.
The r factor is how well the padding will prevent heat from moving from one place to another.
The second important metric to keep in mind is the r factor which refers to a carpet pad s ability to resist the flow of heat.