Extruded Polystyrene Insulation: Save Energy and Be Efficient with Foamex

Foamex specialises in the production and distribution of both expanded and extruded polystyrene insulation in Australia. For over three decades, the Victorian-based company has been of service to builders, engineers, architects, designers and industry specifiers across the country. With a continuously diversifying catalogue, Foamex has carved a niche not only in the construction industry but the packaging and art sectors as well.
Styroboard Extruded Polystyrene Insulation
Styroboard is the signature product range developed by Foamex. The production team channels years of expertise into the manufacturing process of Styroboard to output lightweight, sustainable polystyrene foam. Expanded polystyrene is designed for higher flexibility and versatility, especially for creative applications. On the other hand, extruded polystyrene is the ideal solution to high-performance insulation in the long run.
Here are the top reasons for using Styroboard extruded polystyrene insulation in building structures:
Long Term Thermal Resistance. Styroboard extruded polystyrene foam has a closed cellular structure, using a blowing agent in the extrusion manufacturing process, to reinforce its thermal performance. The blowing agent slowly diffuses through the thickness of the foam over a long period of time - up to 75 years. In the process, air slowly diffuses into the closed cellular structure to stretch the overall thermal resistance (R-value) of Styroboard extruded polystyrene foam over time.

Moisture Resistance. Moisture reduces the overall R-value of the building envelope when it builds up in a wall assembly. When properly installed, Styroboard extruded polystyrene foam provides a constant layer of protection against internal and external moisture accumulation.
The foam is produced by melting plastic resins and additives into a molten material. Upon extrusion through a die, the material expands and cools into a rigid foam insulation board with a uniform and tight closed cellular matrix, resulting in inherent resistance to moisture.
Styroboard extruded polystyrene foam only absorb 0.3% water by weight, without the need for a face or laminate. In comparison, expanded polystyrene foam absorbs 2-4% relative to its density. Another superior characteristic of extruded polystyrene foam is its natural "skin" surface that does not promote moisture absorbency, even in below-grade applications.
Energy Efficiency. Heating and cooling systems consume large amounts of energy in homes, commercial properties and other building structures. According to the US EPA, buildings are responsible for approximately 36% of total energy use, and 30% of greenhouse emissions. Since internal temperature control is a significant factor, Styroboard extruded polystyrene foam is the cost-effective way to reduce energy consumption.
The long term R-values of Styroboard extruded polystyrene range from 3 to 5, going higher with the thickness of the foam. Extruded polystyrene foam increases the R-value of the entire wall by covering wood studs and other non-insulated elements of the wall, including framing, wiring, ducts and plumbing.
Contact Foamex today via www.foamex.com.au to learn more.
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