Difference Between Open and Closed Cell Foam Insulation


It can be tricky when it comes to choosing either an open or closed-cell foam insulation. Both these types of insulation work in different ways during the time of installation in homes. First and foremost, both open and closed cell insulation are different from one another when it comes to strengths and weaknesses. Moreover, the benefits offered by both are also different to one another. If you’re wondering which one should you go for, then understand some of these differences.

  1. The Cells – When it comes to the cells, it is all about the bubbles (cells) which makes the foam. Open cell foam is the one where the cells are purposely left open in a less encapsulated manner. This makes it a softer and flexible material. Closed cell foam is the one where the cells are deliberately closed together. This ensures the air and moisture does not get mixed with the foam.
  2. The Density – The density of open cell foam is in the region of .5 pounds per cubic foot make it more-denser that the closed cell foam which has a density of 1.75 pounds per cubic foot.
  3. The R-Value – The R-Value of closed cell foams is 6.0 per inch making it useful in keeping the heat in and out of a structure. While the R-value of open cell foams is lesser in the region of 3.5 per inch making it beneficial in extreme temperature conditions.

There you have it, these are some of the differences between open and closed cell foam insulation. You may also consider getting rhino wrap insulation.