70mm Grey Polystyrene EPS External Wall Insulation

70mm Grey Polystyrene (Graphite) represents a premium expanded polystyrene (EPS) board incorporating graphite particles that deliver superior thermal performance. The integrated graphite within the insulation structure reflects radiant heat, boosting insulation effectiveness by up to 20% when compared to standard 70mm white EPS insulation of equivalent thickness. This rigid closed-cell EPS product traps air within each bead, and because air conducts heat poorly, it substantially reduces heat transfer rates.

Graphite particles embedded throughout the 70mm Grey Polystyrene (Graphite) board structure create reflective properties and a distinctive dark grey appearance. When radiant heat passes through the 70mm graphite insulation, multiple reflections occur, dramatically slowing heat transmission and maximising energy efficiency.

Within 70mm Grey Polystyrene (Graphite) boards, warm air follows an indirect path towards cooler regions, decelerating heat loss and maintaining interior warmth. This delivers an improved thermal conductivity rating of 0.031 W/mK, outperforming conventional 70mm expanded polystyrene boards.

Product specification

• Brand: Ceresit / Arbet / Styropoz
• Model: 70mm EPS 70 EWI
• Thickness: 70mm
• Length: 1000mm
• Width: 500mm
• Dimensions: 1,000mm x 500mm x 70mm
• Pack Quantity: 8
• Pack Coverage: 4 m2
• Pack Weight: 4.50kg
• Compressive Strength: 70 kPa
• Density: 15kg/m3
• R-Value: 2.26 m2K/W
• Thermal Conductivity: 0.031W/mK
• Material: Expanded Polystyrene
• Profile: Square Edge
• MPN: 70mm 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-infused grey EPS significantly improves insulation properties, lowering heating and cooling energy demands.
2. Cost-Effective: Delivers excellent performance at competitive pricing compared to alternative insulation materials, offering outstanding value.
3. Lightweight: Simple to handle and fit, reducing installation labour and timescales.
4. High Moisture Resistance: 70mm EPS insulation resists moisture penetration effectively, preserving thermal properties throughout its lifespan.
5. Durability: A robust material that retains insulating performance and structural stability over decades.
6. Environmentally Friendly: Frequently manufactured with recycled materials and fully recyclable, supporting green building practices.
7. Ease of Installation: Cuts readily to any dimension or profile, providing flexibility across multiple applications.
8. Mold and Mildew Resistant: Natural resistance prevents fungal growth, supporting healthier indoor conditions.
9. Versatility: Performs excellently across walls, roofs, floors, and foundations.
10. Improved Fire Resistance: Selected grey EPS variants incorporate fire retardant treatments for enhanced protection.
11. Low Thermal Conductivity: Minimises heat movement, substantially improving building energy performance.
12. Minimal Thermal Bridging: Prevents thermal bridging effects that typically cause heat loss and energy waste.
13. Acoustic Insulation: Contributes to noise reduction, creating a more peaceful interior atmosphere.

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 70mm EPS boards are initially secured to the substrate (masonry or timber) using mortar/adhesive, mechanical fixings, or a hybrid approach. The 70mm expanded polystyrene boards must subsequently be protected with an outer finish, such as cladding or a mortar coating. The board's outer surface requires rasping or sanding to achieve a textured finish before applying fiber mesh, followed by base coat or mortar application.

Certifications

Manufactured to EN-13163 Standard specifications.

More Information on 70mm Grey Polystyrene EPS for External Wall Insulation

• Manufacturer Link: 70mm grey EPS70
• Browse our complete EPS insulation range and refine by thickness or coverage using the left-hand filters. For product suitability advice or bulk quotations, contact our team by phone on +4402038839057, email sales@insulationbee, or use Live Chat - Competitive UK Rockwool Insulation Pricing.