Jablite | Jablite Claymaster | Jablite Insulation

Jablite products are renowned for their versatility and effectiveness in various construction and insulation projects. In this category, we focus on two key product lines from Jablite, each tailored to meet specific needs in the building and construction industry.

What is Jablite?

Jablite is a high-performance expanded polystyrene (EPS) insulation brand used across UK construction. Its flagship product, BEWI Claymaster, is a pink compressible EPS board designed to protect foundations from the lateral pressure caused by clay soil heave. Jablite also manufactures enhanced EPS boards for external wall insulation and other thermal applications.

Jablite Claymaster

Jablite Claymaster is a specialised product designed for use in areas with problematic soils, particularly those with high clay content. It acts as a void former, reducing the pressure exerted by clay soils on underground structures. This product is available in various sizes, ensuring a suitable option for different project scopes. Jablite Claymaster is ideal for:

Substructures and Foundations: Providing a buffer against soil expansion and contraction, thereby protecting the foundation's integrity.

Landscaping and External Works: Useful in creating space for soil movement without impacting the structural elements.

Enhanced EPS (Expanded Polystyrene) 1200mm x 600mm

The Enhanced EPS sheets from Jablite offer superior insulation properties. These sheets come in various thicknesses, catering to different insulation requirements. Key uses include:

Wall Insulation: Enhanced EPS sheets can be used in cavity walls, underfloor, and as external wall insulation, offering high thermal efficiency.

Roof Insulation: Suitable for both flat and pitched roofs, providing an effective barrier against heat loss.

Floor Insulation: Ideal for both concrete and suspended floors, enhancing thermal performance and comfort

Both Jablite Claymaster and Enhanced EPS are easy to handle and install, making them a preferred choice among professionals and DIY enthusiasts alike. When selecting the right product for your project, consider factors such as soil type, insulation requirements, and structural load-bearing needs.

Benefits of Jablite Insulation

• Lightweight & Easy to Handle – EPS boards are simple to cut and fit, reducing labour time.
• Durable & Moisture-Resistant – Maintains integrity even in damp ground conditions.
• Excellent Thermal Performance – Helps achieve low U-values for energy-efficient builds.
• Proven & Certified – Claymaster is BBA certified as a compressible fill for ground-heave protection, ensuring compliance with UK building regulations.

Applications of Jablite Insulation

• Foundation Protection – Claymaster relieves ground movement pressure in trench-fill and piled ground beams.
• External Wall Insulation (EWI) – Enhanced EPS boards provide reliable thermal performance behind render systems.
• Floor & Roof Insulation – Broader Jablite EPS grades suit suspended floors, warm roofs, and other thermal upgrades.

Installation Tips

• Follow the Engineer’s Details – Install Claymaster exactly where compressible fill is specified, such as sides of trench fills or beam bases.
• Dry & Clean Boards – Keep EPS protected from solvents and prolonged UV before backfilling.
• Tight Joints – Butt boards closely and stagger joints to avoid thermal bridging.
• System-Approved Fixings – For EWI, use the recommended adhesives, mechanical fixings, and render systems to maintain warranty.

Why Choose Build4Less?

• Competitive Prices & Fast Delivery – Reliable nationwide service with trade-friendly pricing.
• Wide Range in Stock – From BEWI Claymaster to enhanced EPS wall boards, all sourced directly from Jablite.
• Expert Support – Our team offers guidance on thickness selection, U-values, and technical datasheets to ensure your project meets UK building regulations.