How to Use R-value in a Sentence

R-value

noun
  • Look for a sleeping pad with an R-value of five or higher.
    Kaelyn Lynch, Outside, 23 Jan. 2026
  • R-value refers to the ability of the insulation to slow the transfer of heat through the material.
    Timothy Dale, The Spruce, 17 Jan. 2026
  • The higher the R-value, the better the insulation is at reducing heat transfer.
    Timothy Dale, The Spruce, 17 Jan. 2026
  • Pick insulation with the right R-value for your climate; fiberglass is the easiest and most affordable choice.
    Timothy Dale, The Spruce, 17 Jan. 2026
  • The last consideration is the R-value of the insulation.
    Timothy Dale, The Spruce, 17 Jan. 2026
  • Insulation is identified and labeled by R-value.
    Sarah Moore, Freep.com, 12 Dec. 2025
  • The higher the insulation R-value, the greater the insulating power.
    Sarah Moore, Freep.com, 12 Dec. 2025
  • In Michigan, recommended attic R-values range from R49 at the low end to R60 in all areas of the state.
    Sarah Moore, Freep.com, 12 Dec. 2025
  • Different climates require different insulation R-values.
    Sarah Moore, Freep.com, 12 Dec. 2025

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'R-value.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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