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What You Need to Know About The Two Kinds of Spray Foam Insulation

Any professional spray foam insulation applicator with in-depth experience and knowledge will tell you that SPF is an excellent material for construction and protective purposes. The best way to use it is to know the type of spray foam you’re using and its respective advantages and disadvantages. If you’re puzzles about what we just said: there are two types of spray foam insulation. Here are everything you need to know about them.

Open Cell Spray Foam

This type of SPF is often the go-to material for indoor applications where insulation, leak protection, and soundproofing are important. With their expanding, dried matter resulting upon a successful installation, open-cell spray foam insulation will still feel soft but contribute greatly to managing internal wall moisture and quickly drying any drenched wall assembly.


With open-cell SPF, you can accommodate long-term material expansion, which optimizes its space consumption of your hollow wall or ceiling cavities. Room insulation depends greatly on slowing down temperature molecules from passing through membranes. In addition, it is not organic and it absorbs and dries moisture, which prevents the possible growth of mold.


During cold climates, open-cell SPF can quickly diffuse moisture when cold air passes through and interacts with hot air from inside the room. In this light, you might need a vapor retarder to prevent water vapor penetration. It is possible that your walls can become drenched in moisture especially when you’re turning up your heater as the season gets colder.

Closed-Cell Spray Foam

Extremely useful in exterior applications but still capable of delivering great results for interior usage, closed-cell spray foam is a medium-density material that can act as an extra protective layer that supports the structure’s density, capability, and performance. In addition, it can introduce a flood and fire-resistant capability that preserves the structure’s lifespan and capability too.


Most residential and commercial properties use closed-cell spray foam insulation for many interior and exterior applications because of its flood and fire-resistant capabilities. In addition, it improves wall racking strength in both interior and exterior uses. Next, it avoids the vapor permeation problem of standard residential open-cell spray foam.


There are only two difficulties when it comes to closed-cell spray foam. First, it can be costly than open-cell spray foam. In addition, labor might demand a higher fee because of the specialty equipment, resources, and personnel they’ll use to apply closed-cell SPF across your property exterior or for interior applications.

Why It Pays to Work With Professional Spray Foam Insulation Application Companies

True enough, you can find so many spray foam insulation products available to order in online stores and shops. Unfortunately, even if they’re feasible for use, using professionals with knowledge and experience is the best way to apply spray foam insulation within your property. In addition, it’s important to remember that these materials are difficult to remove once they harden; they can take a huge chunk off your drywall or siding. This means additional reparation expenses!

In this light, we highly recommend using services of professional spray foam insulators such as us at Ener-Spray. With our decades of experience and knowledge, we can deliver exceptional results for all your SPF insulation needs. Contact us today!