100mm Thermalite Aerated Block 3.6N 440 x 215mm

The 100mm Thermalite Aerated Block is an industry-leading aircrete solution engineered to optimize energy efficiency and installation speed in modern construction projects. Measuring standard 440mm x 215mm with a 100mm thickness, these blocks leverage advanced aerated technology to offer an incredibly high thermal performance-to-weight ratio while maintaining a reliable 3.6N/mm² structural strength.

With a structure consisting of up to 80% recycled content by volume, Thermalite blocks are highly workable—allowing trade pros to easily saw, drill, and chase them on-site with standard hand tools, vastly reducing labor time and waste.

Key Features & Benefits

• Outstanding Thermal Insulation: The closed-cell micro-pored structure provides a low thermal conductivity value (lambda), drastically reducing heat loss through walls and helping to achieve compliance with UK building regulations Part L.

• Ergonomic & Lightweight: Weighing a fraction of traditional aggregate blocks, they dramatically lower the physical strain on bricklayers, making lifting easier and increasing laying speeds on-site.

• Superior Workability: Can be cut precisely using a standard hand saw, allowing for fast adjustments around openings, complex junctions, and closing cavities without crumbling.

• Excellent Moisture & Fire Resistance: Highly resistant to frost attack and penetrative moisture, while achieving a Class A1 Non-Combustible fire rating for enhanced structural safety.

• High Recycled Content: Manufactured sustainably utilizing pulverized fuel ash (PFA), making it a green choice for environmentally conscious builds.

Typical Applications

• Inner Leaf of Cavity Walls: Ideal for residential and commercial multi-story builds to maximize internal heat retention.

• Internal Partitions: Provides a stable, lightweight wall structure with good acoustic performance between rooms.

• Solid Wall Construction: Frequently specified for internal walls where plastering or direct drywall dabbing is required.

Specifications

• Dimensions: 440mm (Length) x 215mm (Height) x 100mm (Thickness)

• Compressive Strength: 3.6N/mm²

• Block Type: Aerated Concrete (Aircrete)

• Fire Rating: Class A1 (Non-Combustible)

• Thermal Conductivity: Low lambda value for optimal energy efficiency

• Weight: Approx. 6kg – 7kg per block (significantly lighter than dense alternatives)