What Does R-Value Mean for Insulation?

Understanding how effective a product will be is important to every consumer. To help consumers understand the efficiency of a product, many products are given ratings. When it comes to insulation, this rating is known as R-value. There are a few factors that go into determining how a certain kind of insulation is rated, as we’ll explain in more detail below, but to truly maximize on your insulation installation in Dayton, OH, it’s best to hire trained professionals for the job.

What Is R-Value?

R-value is the rating that tells you how effective a particular insulation product will be against heat transfer. The higher the R-value, the more effective the insulation. The R-value of insulation is determined by:

  • What type of insulation it is (batt, spray foam, etc.)
  • What its thickness is
  • What its density is

Why is it important to know how effective a particular type of insulation is against heat transfer? Because heat moves in three ways:

  • Radiation – heat that travels in a straight line and is absorbed by anything exposed to it
  • Conduction – the way heat moves through liquids and gases
  • Convection – the way heat moves through materials

Without the proper barrier established by good and correctly-installed insulation, heat will move in and out of your home. In winter, the heat will move toward the cold areas, like your attic and the outdoors, and in summer, the heat will try move indoors into your air conditioned air. Heat always moves toward cool air, so being able to slow this transfer is critical to maintaining your home’s comfort and energy efficiency.

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