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.

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

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