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How Polystyrene Revolutionizes Cavity Wall Insulation for Energy-Efficient Homes
Cavity wall insulation is a vital part of modern building design, helping reduce heat loss through walls and improving indoor comfort. Polystyrene, especially Expanded Polystyrene (EPS), is a popular material used in cavity wall insulation due to its excellent thermal properties, lightweight nature, and moisture resistance.
Why Use Polystyrene in Cavity Wall Insulation?
Polystyrene beads or boards fit perfectly into the gap between the inner and outer walls, creating a thermal barrier that significantly reduces heat transfer. Its low thermal conductivity means less heat escapes during cold weather, and less heat enters during hot seasons, improving energy efficiency year-round.
Furthermore, polystyrene is resistant to moisture, which helps prevent damp issues and mold growth inside wall cavities. Its lightweight structure makes installation straightforward, and the material remains stable over time without compressing or settling.
Advantages of Polystyrene Cavity Wall Insulation
Excellent thermal resistance: Significantly reduces heat loss through walls.
Moisture resistant: Helps prevent damp and mold inside wall cavities.
Lightweight and easy to install: Saves time and reduces labor costs.
Durable and stable: Maintains insulation properties for many years without degradation.
Common Applications
Polystyrene is widely used in cavity wall insulation for residential homes, commercial buildings, and retrofitting older properties to improve energy performance. It’s often injected as beads or installed as rigid foam boards, depending on the cavity design.
Conclusion
Polystyrene cavity wall insulation provides an effective, durable solution to improve building thermal performance and reduce energy bills. Its combination of excellent insulation, moisture resistance, and ease of installation make it a preferred choice for cavity wall systems. While fire safety and environmental impact require consideration, polystyrene remains a key material in energy-efficient building design.
