Open Cell

There are many types of insulations to choose from. At Slagel Insulation, we want to help shed some light so you know what you're choosing and why one option may be better for your application than another. Open-cell insulation is another name for spray foam. Here is some helpful information:

  • Open cell insulation is a very useful airflow block if the skin is not puctured or removed, but it is not great at blocking humidity. Central Illinois is in climate zone 4, which tends toward high humidity. The lack of a vapor barrier in open-cell foam means that moisture can enter, condense, and cause damp sheeting and mold.
  • The r-value of open-cell foam is not high enough to meet local building codes in most exterior walls
  • Open-cell spray foam must be installed by a professional, which does add to the overall cost
  • If you're looking for good sound control between two spaces like an in-home studio or home theater, playrooms, or interior basement ceilings, and kitchen walls, open cell is a good option because it is soundproofing, and you don't need to be concerned about the moisture barrier
  • Because of its trouble blocking moisture, open-cell insulation is not a good option for most exterior walls.
  • If your insulation is going to be visible, open-cell spray foam is a rougher finished texture which affects its aesthetic
  • Open cell spray foam is a little more touchy and can't be applied in temperatures below 35 degrees
  • Like closed-cell insulation, open-cell spray foam won't settle or shrink, which means it's a permanent solution
  • Open-cell spray foam is soft and spongy when it is installed
  • Open cell insulation is very lightweight, only .25-.5 ounces per square foot

If you'd like to learn more about open-cell spray foam insulation or for a free estimate, call Slagel Insulation at 309-377-3111 or fill out our contact form.