What is R-Value?

Definition

R-value measures a material’s resistance to heat flow. Higher R-values mean better thermal performance.

Benefits

  • Key metric for achieving U-value targets.
  • Helps specifiers select suitable insulation.
  • Ensures compliance with energy efficiency regulations.

Applications

  • ECO/CT, ECO/CW, ECO/MA, XtroLiner, Safe-R, Thin-R, FR/ALU, FR/MG boards.
  • Used in walls, floors, pitched roofs, flat roofs, and drylining.

Best Practice Tips

  • Consider the combined R-values of all building layers.
  • Pair R-value with lambda values for accurate design.

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Resources

Have a look at our brochures, technical files and other documents