Is Spray Foam Insulation Waterproof?

With different options for insulation spray foam varying according to certain qualities, compositions, and intended applications, choosing the right one for you can be difficult. An important question to answer is: Is spray foam insulation waterproof? If it’s not, it is not the right option for you.

A common factor that people tend to watch out for when finding the right spray foam insulation to work with is water-resistance. This is especially true when it comes to putting durable projects together. Here’s how to choose a waterproof spray foam insulation for your needs.

Waterproofing is Essential

Natural disasters have drastically increased in frequency. This makes choosing a waterproof insulation option more important than ever. As the weather goes back and forth, homes and structures are at greater risk of uncomfortable shifts in internal temperature brought about by accumulated water.

By using waterproof spray foam insulation, homeowners and project professionals can add a significant layer of insulation. This will never waver in the face of external temperature shifts.

Depending on your needs and structural requirements, it is even more critical to make the right choice. This ensures that your money is being put toward finding the right waterproof option.

Choosing a Waterproof Insulation Option

Choosing the right option first entails picking between open-cell spray foam and closed-cell spray foam insulation. To better understand which option is best for your needs, let’s go over each option in greater detail:

Is Open-Cell Spray Foam Insulation Waterproof?

One thing buyers have to know about open-cell spray foam insulation is that it’s much less common than the closed-cell option. Open-cell spray foam insulation is uncommon for several reasons, such as:

  • Its inability to insulate as well as its closed-cell counterpart.
  • Its inability to act as a support material due to its lack of density and strength. This is even more true when extreme temperatures are factored in.
  • Its lower R-value, which is a unit of measurement. This is used to gauge how well a material is resistant to heat flow.

Unsurprisingly, open-cell spray foam insulation is not waterproof, in large part due to its low density

Is Closed-Cell Spray Foam Insulation Waterproof?

As the denser, stronger, and more efficient option, closed-cell spray foam insulation provides a greater level of material quality between the two options. It is worth noting, however, that closed-cell spray foam insulation costs more than its open-cell counterpart.

But the difference in price is not without reason. Here are some benefits of choosing closed-cell spray foam insulation options:

  • It has twice the R-value of the open-cell option, making it highly efficient at insulating any type of structure.
  • It has a greater level of strength, effectively producing an increased level of resistance against the elements.

Fortunately, closed-cell spray foam is waterproof. This makes it easier to rely on for controlled insulation no matter where your home may be or what the conditions outside are.

Install Spray Foam Insulation to Protect Your Property

Determining whether your spray foam is waterproof depends on which type of spray foam insulation is being considered. If you’re looking for waterproof spray foam installation, then it’s best to go with a closed-cell spray foam insulation for a high-quality experience.

If you’re on the lookout for a commercial spray foam roofing contractor to install an SPF roofing system, make sure that you hire professionals. Get in touch with us today to see how we can help install spray foam for you!