Spray Foam Insulation in Brainerd MN | Open-Cell Spray Foam Insulation: A Guide

Spray Foam Insulation in Brainerd MN

When it comes to insulation, there are numerous options. We have already discussed different types of insulation like spray foam and cellulose in our blogs. In this article, we will look at one of the types of Spray Foam Insulation. There are two types, closed-cell, and open-cell spray foam insulation. Spray Foam Insulation in Brainerd MN

As spray foam insulation’s  R-value is quite high compared to others, it is mold-resistant, and it also has good soundproofing ability. However, when choosing spray foam insulation, you have to make a final choice. You need to decide which type of spray foam insulation you need, open-cell or closed-cell Spray Foam Insulation.

What is open-cell spray foam?

Open-Cell Spray Foam uses water instead of chemicals, as the blowing agent that reacts with air to form carbon dioxide, which quickly expands. Instead of water, a chemical blowing agent is used in closed-cell insulation. The expansion occurs much faster than closed-cell spray foam, and the insulation plastic foam sets after the cells burst (or open, as the name open-cell spray foam suggests). The result is a softer, more flexible, and moisture-permeable spray foam.

The Pros and Cons of Open-Cell Spray Foam

Like all other things, Open-cell spray foam insulation has its pros and cons. It is good with some things and as good as closed-cell spray foam at other things. Below are all the pros and cons of open-cell spray foam insulation.


  • It is cheaper than closed-cell
  • It requires less material than closed-cell
  • It is permeable to moisture, acting as a moisture buffer, which ensures a more constant moisture level in the building
  •  A more environmentally friendly option
  •  It has superior sound absorption abilities compared to closed-cell.
  • Resistant to mold


  •  It has a lower R-value than closed-cell
  • More resistant to heat than open-cell
  • It provides less structural support to walls

When should you use open-cell spray foam over closed-cell?

Both open-cell and closed-cell foams are an excellent choice; however, the option you should select should essentially depend on your requirements and the project at hand. In some cases, open-cell will be better, while closed-cell will be better in others. Therefore, you need to choose according to your needs. The applications for which open-cell spray foam insulation is ideal are:

  • Unvented or vented Attics
  • Cathedral or Vaulted Ceilings
  • Interior Walls
  •  Cold Floors
  • Sound Walls

Choosing the right insulation is one of the first steps to achieving a more comfortable and efficient living experience. We are your local spray foam insulation company in Minnesota. Contact us or visit our website for more information on spray foam insulation and its services.

For more information about our spray foam insulation services, feel free to contact Spray Foam Insulation Plus, the best insulation contractors in Brainerd MN, today.

Spray Foam Insulation in Brainerd MN

Spray Foam Insulation in Brainerd MN

Spray Foam Insulation in Brainerd MN

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