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  • Writer's pictureDave Brown

Is Spray Foam Insulation Right For You?

Updated: Mar 8, 2023


Spray foam insulation is a popular insulation option for both residential and commercial buildings. This type of insulation is known for its high R-value, which measures its insulation effectiveness, and its ability to fill even the smallest gaps and cracks. There are two main types of spray foam insulation: open-cell and closed-cell. Both have their unique characteristics, benefits, and R-values.


Open-Cell Spray Foam Insulation Open-cell spray foam insulation is made up of a soft and spongy material that provides a low-density insulation option. It is known for its high R-value per inch, which ranges from R-3.5 to R-3.7. This type of insulation is ideal for filling gaps and cracks and improving indoor air quality as it has an open cell structure that allows air to circulate freely.


One of the main benefits of open-cell spray foam insulation is that it is more affordable than closed-cell spray foam insulation. It is also easier to install and can be a good option for those who are concerned about environmental impact as it is made from materials that are derived from renewable resources.


Closed-Cell Spray Foam Insulation Closed-cell spray foam insulation is made up of a dense and rigid material that provides a high-density insulation option. It has a higher R-value per inch, which ranges from R-6 to R-7. This type of insulation is ideal for use in areas where moisture is a concern as it is highly resistant to water and provides an effective barrier against moisture.


Closed-cell spray foam insulation is more expensive than open-cell spray foam insulation, but it also provides a higher level of insulation. It is also ideal for use in areas where moisture may transfer in or out of a structure, such as crawlspaces or against metal walls and ceilings as it provides a barrier against moisture transmission.


In conclusion, both open-cell and closed-cell spray foam insulation have their unique benefits and R-values. The type of insulation you choose will depend on your specific needs, budget, and the area you are insulating. If you are looking for an affordable and eco-friendly insulation option, open-cell spray foam insulation may be the best choice for you. If you are looking for a high-density insulation option that provides maximum insulation and protection against moisture, closed-cell spray foam insulation may be the best choice for you.

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