Spray Foam Insulation: Open-Cell

We can fullfill every insulation project you can imagine!

The open cell nature of foam means you are not resisted by the seams, but it is still very good at sealing - letting moisture vapor pass through.

Ideal areas to apply Open-Cell

  • Underneath roofs
  • Cavities inside walls
  • Sound Barrier

Spray foam is soft and spongy just before it sets. It's similar to diffuse-and-firm closed-cell insulation but this type allows water vapor to pass through it.

Spray foam insulation is a very lightweight option and it doesn't affect the structural integrity of the building. This is a good choice if your company is looking to save money or go green. You, also get great soundproofing from open-cell foam insulation.

The Application Process

First, take the components of open-cell foam and mix them. It can fill up to 4 times more area than closed-cell foam thanks to its aerosol-like properties.

Although open-cell spray foam has a lower R-value per inch at 3.5-4, it also costs less at a much lower price.

Both foam products are trying to be greener, with some manufacturers using natural materials like soy oil at low percentages.

Open-cell foam typically uses water, which does not increase global warming. Closed-cell foams typically have chemicals that are more damaging to the environment.


  • Can cover high rates
  • Creates air barrier
  • Cost per R-value lower than closed cell
  • Uses Water- Greener option
  • Sound Barrier


  • Smaller areas are not the best fit because of lower R-value
  • May need vapor barrier & house wrap
  • If contact with water is possible open-cell should be avoided
  • Material shrinkage may reduce effectiveness
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