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Specializing in geofoam for construction in both public and private sectors, Poly Molding endeavors to provide the highest quality EPS products at the most competitive prices. Whether you are in need of a reliable replacement to soft soil, or you need one for insulation purposes, we have the perfect product that fits your needs. Get to know more about what we can offer through these resources.

Geofoam 101

There are two types of foam block materials which can be used for insulation construction. These are expanded polystyrene foam (EPS) and the extruded Polystyrene foam (XPS). EPS is the preferred geofoam for construction because of its ability to be provided as very thick sheets and ease of fabrication. Through a process called expansion of polystyrene plastic polymers, a closed-cell type of foam is formed
The main function of EPS is to protect surrounding structures, and to provide building insulation. Other purposes include raising concrete slabs and managing structural loads. Geofoam is versatile, durable, and lightweight. In fact, it weighs 100 times lighter than soil and 30 times lighter than other alternatives which helps lower the stress on adjacent soils and structures. This characteristic of geofoam makes it a favorable choice for a lot of construction applications such as landscaping, slope stabilization, bridge abutments, and road widening, among others.

Insulation Comparison

Not all rigid foam materials perform the same way in terms of cost effectiveness, versatility, and other characteristics. Get to know insulation materials better.
Considered as the most versatile among insulation options, this one is used in applications including roof, floor wall, as well as below grade where it considered structural geofoam. It is most widely used in insulated concrete forms. It also has the highest average R-value on a per dollar basis when compared to the other two with a rating of 4.6 R per inch. What is good about the product is that it does not retain water over the long term as well. It is also available both in faced and unfaced options.
When compared to the other two types of insulation, this one is distinct because it has that green, blue, or pink color. It has an R value of 5 R per inch. It is best used for walls or below grade applications. It is not a vapor barrier as it is more of a vapor retarder. Since it is thick, it has a lower perm rating when compared to the other two.

This third type of insulation material is best used for roofing applications. It has a cost that is most expensive among them. It rates at 5.8 R per inch, and its manufacturing process starts with the use of a liquid foam. When compared to the other two types, this one is not recyclable. When faced with fiberglass, this one can become more permeable without necessarily creating a vapor barrier

All foam block materials guarantee that you maximize efficiency of your insulation systems. They provide thermal insulation while meeting energy efficiency requirements. Expanded Polystyrene (EPS), however, is a better option over the two since it is more environment friendly.

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