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Maximize Your Roof’s Efficiency with Polystyrene Above Concrete Roof Insulation

Concrete roofs can absorb and retain heat, causing uncomfortable indoor temperatures and higher cooling costs. Polystyrene above concrete roof insulation is an effective solution that significantly improves thermal performance, keeping buildings cooler in summer and warmer in winter.

Why Use Polystyrene for Above Concrete Roof Insulation?

Polystyrene insulation boards, particularly extruded polystyrene (XPS), are installed on top of concrete roofs to create a thermal barrier. These boards are lightweight, water-resistant, and offer excellent compressive strength, making them suitable for flat or slightly sloped roofs that experience foot traffic or mechanical loads.

Polystyrene’s moisture resistance protects the roof structure from dampness, while its thermal properties reduce heat transfer, helping maintain comfortable interior temperatures and reducing energy costs.

Advantages of Polystyrene Roof Insulation

  • High thermal resistance: Effectively reduces heat gain and loss through the roof.

  • Moisture resistant: Prevents water absorption and protects roof integrity.

  • Strong and durable: Supports foot traffic and rooftop equipment loads.

  • Lightweight and easy to install: Simplifies installation on various roof types.

Common Applications

Polystyrene insulation above concrete roofs is widely used in commercial and residential flat roofs, parking garages, and industrial buildings. It can be installed under protective layers like waterproof membranes or pavers to extend durability.

Conclusion

Polystyrene above concrete roof insulation is a cost-effective way to improve energy efficiency and protect roof structures. Its durability, moisture resistance, and excellent thermal properties make it an ideal choice for flat roof systems. Proper fire safety and UV protection measures ensure long-lasting performance and comfort.

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Pine-Finish ISO Ceiling Boards

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Custom-Cut Polystyrene Sheets & Blocks

Custom-Cut Polystyrene Sheets & Blocks

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PolyWall - Polystyrene Wall Insulation Boards

Medium-Density Wall Insulation

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PolyVoid - Standard Size Polystyrene Void Formers

Standard Void Formers To Raise Concrete Slabs

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Warehouse ISO Ceiling Boards

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Polystyrene Letters, Numbers, Shapes & Branding

Shapes, Letters & Numbers

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PolyRoof Polystyrene Roof Insulation Boards

High-Density Concrete Roof Insulation

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Polysttyrene Decking Blocks

Polystyrene Decking Blocks (Slabs)

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Standard Polystyrene Sheets & Blocks

Standard Size Sheets & Blocks

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High-Density Polystyrene Floor Insulation Boards

High-Density Polystyrene Floor Insulation

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Custom-Cut Polystyrene Void Formers

Custom Void Formers To Raise Concrete Slabs

Retail & bulk national supply from:

Johannesburg

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Durban

Port Elizabeth​

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