50mm Grey Polystyrene EPS External Wall Insulation

50mm Grey Polystyrene (Graphite) delivers premium expanded polystyrene performance with integrated graphite particles that create a distinctive grey finish. The graphite content reflects radiant heat effectively, boosting thermal performance by approximately 20% compared to standard 50mm white EPS insulation boards of equivalent thickness. This rigid closed-cell EPS board traps air within each bead structure, and since air conducts heat poorly, it substantially reduces heat transmission rates.

Graphite particles embedded throughout the 50mm Grey Polystyrene (Graphite) board structure deliver reflective properties and a characteristic dark grey appearance. When radiant heat passes through the 50mm graphite insulation, it reflects repeatedly, dramatically slowing thermal transfer and maximising energy efficiency.

Within 50mm Grey Polystyrene (Graphite) boards, warm air follows an indirect path toward cooler zones, decelerating heat movement and maintaining interior warmth. This design delivers superior thermal conductivity of 0.031 W/mK, outperforming conventional 50mm expanded polystyrene boards.

Product specification

• Brand: Ceresit / Arbet / Styropoz
• Model: 50mm EPS 70 EWI
• Thickness: 50mm
• Length: 1000mm
• Width: 500mm
• Dimensions: 1,000mm x 500mm x 50mm
• Pack Quantity: 12
• Pack Coverage: 6 m2
• Pack Weight: 4.50kg
• Compressive Strength: 70 kPa
• Density: 15kg/m3
• R-Value: 1.52 m2K/W
• Thermal Conductivity: 0.031W/mK
• Material: Expanded Polystyrene
• Profile: Square Edge
• MPN: 50mm Graphite EPS (Grey Polystyrene)
• Colour: Grey ǀ Graphite
• Applications: External Wall Insulation Systems
• ETA Notification: Yes
• Features: Effectively reduce heating costs

Applications

• Balcony loggias
• Sandwich walls
• External wall insulation systems
• Framed wall surfaces
• Solid brick and block walls
• Continuous outer layers of frame walls
• Cavity block and brick walls
• Cavity dense block walls
• Thin coat rendering
• Gaps in closed or ventilated three-layer walls
• Insulated render systems
• Walls constructed using the "light wet" or "light dry" method
• ETICS (External Thermal Insulation Composite Systems)

Benefits of Expanded Polystyrene (EPS) Grey Insulation

1. Enhanced Thermal Performance: Graphite-enhanced grey EPS significantly improves thermal insulation capabilities, reducing heating and cooling energy demands.
2. Cost-Effective: Delivers excellent performance at competitive pricing, offering outstanding value for budget-conscious projects.
3. Lightweight: Simple handling and installation reduce labour expenses and installation duration.
4. High Moisture Resistance: 50mm EPS insulation resists moisture absorption effectively, preserving insulating properties throughout its lifespan.
5. Durability: Robust material that retains insulating efficiency and structural integrity across decades.
6. Environmentally Friendly: Frequently manufactured with recycled content and fully recyclable, supporting green building practices.
7. Ease of Installation: Cuts cleanly to any shape or dimension, offering flexibility across diverse applications.
8. Mold and Mildew Resistant: Natural resistance to mold and mildew prevents growth, supporting healthier indoor spaces.
9. Versatility: Performs excellently across walls, roofs, floors, and foundations.
10. Improved Fire Resistance: Selected grey EPS variants feature fire-retardant treatments for enhanced safety.
11. Low Thermal Conductivity: Minimises heat transfer efficiently, strengthening building energy performance.
12. Minimal Thermal Bridging: Substantially reduces thermal bridging risks, preventing heat loss and energy waste.
13. Acoustic Insulation: Contributes meaningful sound insulation benefits, creating quieter interior environments.

Characteristics

• Lightweight
• Easily cut with a sharp knife to any size and shape
• High resistance to mold growth
• Highly durable when used according to specifications
• Cost-efficient
• Environmentally friendly Green Way product

Installation

The 50mm EPS boards are initially fixed to the substrate (masonry or timber) using mortar/adhesive, mechanical fixings, or a combination of both. The 50mm expanded polystyrene boards should then be covered with an outer layer, such as siding or a mortar layer. The outer surface of the board needs to be rasped or sanded to create an abrasive surface before covering it with fiber mesh, to which the base coat or mortar layer is applied.

Certifications

Produced in accordance with EN-13163 Standard.

More Information on 50mm Grey Polystyrene EPS for External Wall Insulation

• Manufaturer Link: 50mm grey EPS70
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