R-Value is a measure of insulation's ability to resist heat flow. ... The recommended level for most attics is to insulate to R-38 or about 10 to 14 inches, depending on insulation type.
R-values, like R-38, are used by the construction industry to describe the thermal resistance of insulation materials, like those used to insulate your attic. When you are looking at an R-38 insulation, you are actually reading a description of its resistance, rather than size or thickness of the material.Apr 19, 2010
How much insulation do I need for an R38 attic?
about 10 to 14 inches
Is R38 insulation enough?
Every home builder in our area must insulate the attic to a minimum of R-38. ... And more insulation generally means your home will be more comfortable, more energy efficient, with a higher resale value.Jul 6, 2021
What is R38 insulation used for?
Easy to handle and pre-fabricated batts with a thickness or depth of 11.25″ will be needed to attain an R-value of R38. It is used in floors of crawlspaces and attics, supplying water-resistant insulation with no forming of mildew, fungi, or mold.Nov 20, 2021
How many inches of blown in insulation do I need for R30?
Insulation in your walls and ceilings slows down this heat transfer. ... The bigger the R value, the better the insulation is at slowing down the heat transfer. So R19 is better insulation than R13, and R30 is better than R19. The larger the R value, the better the insulation value.Dec 28, 2013