The measurement used for insulation is called the: H-factor R-factor X-factor L-factor

R-factor.

Explanation:

Insulation can be defined as the process in which physical objects (materials) oppose the flow of current by providing a least resistance path or the opposition to the conduction of heat energy.

R-factor is an abbreviation for thermal resistance. The R-factor is the most commonly used measurement for providing all of the informations about the insulating properties of an insulator. Therefore, the measurement used for insulation is called the R-factor.

Most manufacturers specify the R-factor on the label of an insulating material.

Generally, the higher the R-factor of an insulating material the better it is for insulation.

Hence, the ability of a material to prevent the flow of heat or electricity (current) is largely dependent on its R-factor.

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