Extruded Polystrane (XPS)
Built to Last: The Solution for Damp and Load-Bearing Areas
Extruded Polystyrene (XPS), referred to in our list as XPS-rigid boards, is a lightweight yet incredibly strong insulation material with a highly uniform closed-cell structure. Unlike Expanded Polystyrene (EPS), the extrusion process gives XPS a smooth surface and prevents moisture penetration, ensuring its high thermal R-value remains consistent, even in persistently wet conditions. This resilience, combined with its high compressive strength, makes it the preferred choice for applications where the insulation must resist heavy loads and water.
High Compressive Strength: Can withstand heavy loads (e.g., foot traffic, concrete slabs, soil).
Excellent Moisture Resistance: Closed-cell structure prevents water absorption and degradation of thermal properties.
Consistent Thermal Performance: Maintained R-value over time, even when exposed to humidity.
Durability: Resistant to rot, mildew, and decay, ideal for long-term use below grade.
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Product Range
Extruded Polystyrene Product Range
XPS-Rigid Boards
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Key Fiber Composition:
Boards manufactured in varying thicknesses and densities to meet specific thermal and compressive strength requirements for construction applications.
SJE Offerings :
XPS-rigid boards
Industries Catered
Critical Use in Construction and Cold Chain
XPS-rigid boards are indispensable in demanding construction environments where moisture and structural integrity are concerns.
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south_east RoofsUsed in inverted roof assemblies where the insulation is above the waterproofing membrane.
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south_east Floors & FoundationsInsulating concrete slabs, foundation walls, and basement interiors (below-grade applications).
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south_east Perimeter WallsPreventing thermal bridging in building envelopes.
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south_east Cold Storage & RefrigerationFlooring and wall insulation in freezers and cold rooms due to its moisture resistance.
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south_east Civil EngineeringInsulation beneath roadways, railways, and other ground surfaces subject to frost heave.
Rely on Rigid Strength. Choose Quality XPS from SJE.
Ensure your foundations and critical structural insulation are protected by the strength and moisture barrier of Extruded Polystyrene. Contact us for bulk order quantities and delivery details.