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Expanded Polystyrene and Its Impact on the Performance of ICF System

Expanded polystyrene (EPS) is a crucial component for many ICF blocks. Its impact on performance is immense. Builders prefer it for its lightweight nature and effective insulation properties. In this post, we’ll look at EPS foam and its value for ICF systems.

7 Factors Boosting ICF Performance with Expanded Polystyrene

Thermal Insulation

One of its key features is that EPS is an effective insulation. It has good R-values, so it works well in different environments. With ICFs made from EPS foam, you have blocks that provide reliable insulation for concrete structures.

Structural Strength

Even though EPS is light, it adds to the strength of the ICF system. The forms are tough and less likely to fail, which means you’ll have fewer problems during construction. ICF walls are also stronger than those made with traditional forms.


Expanded polystyrene foam is light and easy to manage, making the forms easier to build. Because it’s not heavy, it helps workers finish the job faster. That is why it is one of the most popular materials for ICFs.

Sound Insulation

The structure of EPS also acts as a sound insulator. It reduces noise traveling between different parts of the building and from outside. That means you can build homes and other structures that are more peaceful for occupants.


Builders can use the foam for a diverse array of construction applications. You can build walls, roofs, floors, foundations, and more. It is also well-suited for different environments and conditions.

Moisture Resistance

EPS has low water absorption, preventing moisture from infiltrating the building’s exterior. This characteristic is vital for maintaining structural integrity. It also prevents mold growth and damage.


Manufacturers make most EPS from recycled materials. Using recyclable materials helps reduce waste and limits harm to the environment. It also helps support sustainability goals in building projects.

Choose SuperForm for the top ICF system using EPS foam. Our SuperForm EPS+ has a long-term R-value. It is a cost-efficient insulation solution. It also releases moisture fast. SuperForm EPS+ resists moisture in both short—and long-term tests. It has a low environmental impact. EPS+ has the smallest environmental impact among rigid insulations. The carbon footprint can be up to 57 times lower.

Are you interested in building with ICFs? Click here to contact the team from SuperForm. Our innovative ICF system simplifies construction while creating stronger concrete. Reach out now to learn more about the benefits of SuperForm building products.

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