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🧱 Polystyrene EPS Graphite 100 mm (500×1000 mm) – High‑Performance Thermal Insulation Board
Polystyrene EPS Graphite 100 mm in 500×1000 mm panels is a high‑performance thermal insulation board engineered for modern construction and external wall insulation (EWI) systems. Enhanced with graphite technology, this EPS board delivers superior thermal resistance, helping to reduce heat loss and improve energy efficiency in residential, commercial, and retrofit projects across the UK.
Lightweight, moisture‑resistant and easy to install, graphite EPS insulation boards provide reliable insulation performance and long‑lasting durability in a wide range of applications.
🧠 Key Features & Benefits
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Graphite‑enhanced thermal performance – Improved insulation compared to standard EPS
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Low thermal conductivity (~0.031 W/mK) – Helps maintain indoor comfort and energy savings
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Lightweight & easy to install – Simple to cut and fix with standard tools
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Moisture‑resistant closed‑cell structure – Limits water uptake and mould
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Standard panel size 500×1000 mm – Easy handling and installation
📍 Applications
Polystyrene EPS Graphite 100 mm (500×1000 mm) boards are suitable for:
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External wall insulation (EWI) systems
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Under‑render insulation and façades
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Internal wall insulation
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Timber frame wall insulation
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New build and retrofit projects
📊 Technical Specifications
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Material: Expanded Polystyrene (EPS) with graphite additive
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Thickness: 100 mm
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Panel Size: 500×1000 mm
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Thermal Conductivity (λ): approx. 0.031 W/mK
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Colour: Graphite grey
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Board Type: Rigid insulation panel
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Installation: Fixed with adhesive and/or mechanical fixings
🔎 Why Choose Graphite EPS
Graphite EPS boards offer up to 20% better insulation performance than traditional white EPS at the same thickness. This makes EPS Graphite 100 mm a solid choice for projects where energy efficiency, comfort, and compliance with UK building standards are priorities.

