All About Open-Cell Spray Foam Insulation

Last Updated on October 12, 2022 by Spray Foam Insulation Plus

All About Open-Cell Spray Foam Insulation

Open-cell spray foam insulation is composed of cells that aren’t totally closed off. It expands more swiftly and the openness in the structure allows it to be pliable and lightweight. The open-cell spray foam can cover areas that are harder to reach and is ideal for insulating areas that include the attic, crawlspaces, or wall cavities.

Open-cell spray foam insulation helps to increase your house’s energy efficiency by preventing thermal penetration where the spray foam has been applied. It maintains a consistent temperature throughout your house and it also helps with the sound reduction in your home. In this article, we will be discussing all the benefits provided by open-cell spray foam insulation.

Sound Barrier

One of the pros of open-cell spray foam is that it absorbs sound very well. This takes us back to its structure which is porous, flexible, and soft. The pliability and open cell structure of open-cell spray foam insulation allow it to absorb sound and prevent it from reverberating off a hard surface. Spaces in Open cell foam will block the airborne sound transmission as the sound waves bounce back and forth and will lose a significant amount of their energy which is then absorbed by the open-cell spray foam making your room quieter.


Open-cell is less expensive than closed-cell spray foam insulation; however, it does a great job in the prevention of airflow just like closed-cell. Open-cell has an extraordinary expansion rate which covers a larger area. This means that less material is used to insulate the desired area hence it is cheaper. The lack of expansion of closed-cell spray foam makes it costly because more material is required to insulate the area completely. For people who live in a noisy neighborhood, open-cell spray foam is the best option.


R-value is the measure of thermal resistance provided by the material. If a material has a higher R-value, it means that it is better at insulating. Open-cell spray foam has a higher R-value than the other types of insulations. It is an effective insulation material and does a great job in the prevention of air loss. The R-value of open-cell ranges from 3 – 4 per inch. CLosed-cell spray foam has a higher R-value of around 6.5. The difference in value between the two types means that more material of open-cell spray foam will be used than closed-cell spray foam to achieve the same level of R-value.


Due to the continuing increases in energy costs, homeowners realize that home insulation will help to increase the energy efficiency of the house and reduction in monthly energy bills. Open-cell spray foam is a cost-effective solution to decrease the consumption of energy. It will make your house energy efficient. When applied, it expands about 100 times its original size, filling any type of cavities and all the hard-to-reach places. The applied insulation gives a permanent seal and improves indoor air quality. Its remarkable air sealing properties makes it an excellent insulating material that will significantly cut down your carbon footprint.

With all the information about open-cell spray, you have now a better understanding of it and in what way it can benefit you. If you need open-cell spray foam insulation look no further because we are here to help you. Our experienced and knowledgeable professionals will guide you and provide you with the highest quality products and 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.

All About Open-Cell Spray Foam Insulation

All About Open-Cell Spray Foam Insulation

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