The thermal diffusivity data for commercial materials are plotted as a function of temperature in fig.

Tile has higher thermal conductivity than carpet. The internal structure of a metal molecule contains free electrons that can move freely through the bulk of the material. The thermal insulation values r value s of different household materials are compared in figure 1. The thermal conductivity of tile is 172 times better than wool carpet at transferring heat. Thermal conductivity is the difference maker not temperature.

Car pet r anks very highl y i e. Of carpet with its millions of tiny fibres traps air and further increases its thermal insulation. You want to maximise materials with thermal conductivity. The engineering toolbox has tabulated values of thermal conductivity for a variety of materials.

The thermal conductivity of tile is 172 times better than wool carpet at transferring heat. The data for the calculations is found below. Carpet particularly wool and shag varieties provides the best r values among all standard flooring choices. The slightly higher.

Tile floors such as marble and ceramic offer similar r values when compared based on the measurement. Pvc tile has only 1 3 of the insulation of wool carpet. However because marble tiles are usually twice as thick as ceramic tiles they offer greater protection against thermal conductivity. Based on thermal conductivity alone water should heat up faster than air.

Pvc tile has only 1 3 of the insulation of wool carpet. The glues don t seem to make that a much a difference probably because of its thickness. Simply put tile is the better conductor of heat than wood or carpet and can take away the heat from your feet faster than the others. The thermal diffusivities of the s and ps tiles were in the range 0 005 0 010 cm 2 s 1 and they seem to correlate with the density values which are included in the label of each material in fig.

Carpet ranks very highly i e. It feels colder to a person touching the tile so the heat transferred q must be greater compared to carpet and hardwood. Specific heat has to do with how much energy is needed to raise an object s temperature. Metals are an example of a material with a high thermal conductivity that can quickly transfer heat.

Wool carpet had a higher insulation value than comparable carpets of other fibre types. 2 indicating that vinyl material had the lowest thermal diffusivity as low as 0 0025 cm 2 s 1 and granite tile the highest more than twice higher than the rest. Heat conductivity is all about the rate at which the material can conduct heat. As can be seen from the table the thermal resistance of carpet is significantly higher than that of concrete and plywood two common flooring materials and similar to fiberglass insulation.

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