Answer
Dec 27, 2020 - 05:03 AM
Forbo does not provide an R-value of this product probably because it is not intended for insulating walls or ceilings. It is a unique material that combines linoleum and cork.Cork has a thermal resistance of R-3.6 to R-4.2 per inch. This is a better value range than loose fiberglass (R-2.2 to R-2.9 per inch) and fiberglass batts (R-2.9 to R-3.8 per inch). The thermal conductivity of cork is 0.036-0.38 W/mk and its density is 7.0 to 7.5 pounds per cubic foot.Bulletin Board Pinboard Linoleum is 1/4" thick and "if it was just cork" it would have an R Value of .90 to 1.05 but because it is denser, our estimate is that it is more than both of these numbers. How much is anyone's guess.
