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R-Value Testing: is your material effective as a thermal insulator?

A guide to understanding the thermal resistance (R-value) of materials used in buildings. 

The use of thermal insulating materials in the design of a building has become essential for residential homes, commercial and institutional buildings to meet the ever-increasing cost of energy and concerns over environmental impact.

Knowledge of the thermal resistance, or R-value, of a material provides information on how effective the material is as an insulator. High R-value insulating materials slow the flow of heat through floors, ceilings, and walls, reducing energy consumption, lowering the carbon footprint of a building, and allowing desirable indoor comfort.

To learn more about R-value and achieve thermal resistance, complete the form and download our free guide.

This article provides an understanding of insulation and heat flow, covering all aspects of thermal resistance testing, including:

  • How R-value is measured
  • ASTM C518
  • The testing apparatus
  • Thermal insulating materials