Kay-Metzeler 25mm EPS70 Polystyrene Floor Insulation Board

The Kay-Metzeler Kay-Cel 25mm EPS 70 Expanded Polystyrene Floor Insulation Board delivers outstanding thermal performance and durability for residential applications. This cost-effective solution is completely free from CFCs and HCFCs, making it an environmentally responsible choice for your building project.

Engineered for installation beneath concrete slabs and precast concrete floors in domestic ground-floor construction, this 25mm board works seamlessly when topped with chipboard to satisfy Building Regulations U-value standards.

The 25mm EPS 70 sheets measuring 2400mm x 1200mm x 25mm offer exceptional moisture resistance and remain impervious to rot, bacteria, mould, and fungal growth. Non-toxic, non-irritant, and completely odourless, these boards integrate effortlessly with virtually all standard building materials.

Kay-Metzeler Kay-Cel Polystyrene comes in multiple grades, from EPS 70 and EPS 100 through to EPS 500, alongside Kay-Cel Super-Plus variants. Both EPS 70 and EPS 100 represent premium 25mm expanded polystyrene options, delivering superior thermal insulation performance.

Product specification

• Brand: Kay-Metzeler™
• Model: 25mm EPS 70
• Thickness: 25mm
• Length: 2400mm
• Width: 1200mm
• Dimensions: 2,400mm x 1,200mm x 25mm
• Board Coverage: 2.88m2
• Pack Coverage: 34.56m2
• R-Value: 0.68m2K/W
• Thermal Conductivity: 0.037W/mK
• Compressive Strength: 70kPa
• Density: 15kg/m3
• Material: Expanded Polystyrene - EPS
• Profile: Square Edge
• Colour: White with grey dots
• Building Regulations: Compliant
• Shipping method: Articulated Vehicle ǀ Courier
• Applications: Flooring ǀ Walls ǀ Construction
• Type: EPS Insulation Board
• Features: Versatile EPS ǀ Polystyrene Board
• Manufacturer: Kay-Metzeler EPS 70®

Application

• Thermal insulation for areas with minimal mechanical stress.
• Insulation of walls and ceilings from below in Joint-less Warming Systems (BSO), including light-wet installation methods.
• Insulation for cladded walls with ventilated air gaps.
• Thermal insulation beneath plaster finishes, lintels, and door frame surrounds.
• Insulation for reinforced concrete ceilings functioning as lost formwork.
• Thermal insulation for pitched roofs positioned beneath the structural frame.
• Foamed 25mm polystyrene boards EPS70 must not contact substances that degrade polystyrene, including organic solvents such as propane, benzene, or turpentine.

Characteristics

• Expanded polystyrene (EPS) provides excellent moisture protection and works compatibly with most building materials, excluding solvent-containing products.
• 25mm EPS resists rot, bacteria, mould, and fungi whilst remaining non-toxic, non-irritating, and odourless.
• 25mm EPS contains no CFCs or HCFCs; however, the material is combustible per BS476: Part 4 and will ignite when exposed to flame.
• Store the material in a covered location, shielded from direct sunlight and ground moisture exposure.

Certification

25mm EPS70 foamed polystyrene boards meet the requirements of Standard PN-EN 13163:2009.

Info

Browse our Kay-Metzeler EPS70 range and refine by thickness or coverage using the left-hand filters. For guidance on product suitability for your specific project or to request a bulk discount quotation, contact us on +4402038839057, email sales@insulationbee, or use our Live Chat service for the best UK Claymaster Board pricing.