Spray Foam Insulation Brainerd MN | Closed-Cell Spray Foam Insulation: A Guide

Spray Foam Insulation Brainerd MN

With the world constantly evolving and growing, newer and better variants of everything are available. One of those things is home or building insulation. Fiberglass had been the popular and go-to option for people in the near past. Whether people were looking to insulate their houses or other buildings, it used to be the top choice for everyone. Spray Foam Insulation Brainerd MN

However, now that is changed, many people prefer spray foam insulation to any other type of insulation now. This is because spray foam insulation is more convenient and offers many benefits. We have a different blog post dedicated to the many benefits that spray foam insulation offers.

In this article, we will discuss one of the types of spray foam insulation. In another blog, we discussed the three different types of insulation (fiberglass, cellulose, and spray foam). If you have read it, then you would know that spray foam insulation is far more superior for numerous various applications compared to others.

Spray foam insulation has a higher R-Value, is resistant to mold, and has higher-level soundproofing capabilities. However, even if you choose to go with spray foam insulation, you still have to make one final choice. As you might have or might not have known, there are two spray foam insulation-closed cell and open cell types. We compared the properties and characteristics of the two in a different blog.

What is closed-cell spray foam?

Closed-cell spray foam uses chemical blowing agents that use gasses that expand. The same thing happens with open-cell spray foam. However, with closed-cell spray foam, it occurs at a much slower rate, and the insulation plastic foam sets before the cells burst (or open, like in open-cell spray foam). The result is a very dense, non-porous, and non-moisture-permeable foam.

Pros and Cons of Closed-Cell Spray Foam


  • It has a higher R-Value.
  • We can apply it at low temperatures.
  • Ideal for flood zones, as it rejects bulk water.
  • Suitable for both interior and exterior use.
  • It increases structural strength.


  • More expensive compared to open-cell.
  • It is denser than open-cell; therefore, more materials are required.

When To Use Closed-Cell?

Like anything else, closed-cell and open-cell spray foam insulation also have pros and cons. Neither is better than the other, and it is just that one is better at one job while the other is better at a different job. There might be some applications where both are great options as well. Therefore, it depends on your needs and the nature of the project, which one you should go for. You can use Closed-cell spray foam insulation for applications, like:

  • Vented and Unvented Attics
  • Concrete Slabs
  • Interior or Exterior Walls
  • Floors and Ceilings
  • Unvented Crawl Spaces
  • Cold Storage
  • Ducts
  • Tanks
  • Freezers
  • Coolers

We are your go-to spray foam insulation contractors in Minnesota, with years of experience and expertise behind us. We install the proper insulation, so do not hesitate to contact us for your home insulation.

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 Brainerd MN

Spray Foam Insulation Brainerd MN

Spray Foam Insulation Brainerd MN

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