Thermalite Hi Strength 7N Block 100mm

Thermalite Hi-Strength 7 is designed specifically for applications such as flats, offices, supermarkets and retail parks, where loading conditions require a 7.3N/mm² building block. Thermalite Hi-Strength 7 blocks are also suitable for external walls, foundations, partitions and separating walls. The blocks have the added benefit of being lightweight, easy to manage and easy to shape allowing for ease of use during your construction projects. Its high thermal insulation and great moisture resistance also make it an economically sound selection.


  • For use with general purpose masonry
  • Dimensions: 440mm x 215mm x 100mm
  • For use in cavity walls & separating walls, where buildings are up to 3 storeys
  • High Thermal Performance
  • Moisture Resistance
  • Compressive Strength: 7.3N/mm²
  • Dry Density: 730 kg/m³
  • Design: 0.18 W/m.K
  • Four scratch markings to identify block

Thermalite Shield Block 100mm

Thermalite Shield Blocks deliver all the typical qualities of Thermalite blocks with excellent thermal performance and moisture resistance. The blocks are versatile and can be used in internal and external walls and foundations. They offer high thermal and sound insulation while also providing a sturdy, durable building material.


  • For use with general purpose masonry
  • dimensions: 440mm x 215mm x 100mm
  • High Thermal Performance
  • For use in cavity walls, partition walls & foundations
  • Compressive Strength: 3.6N/mm²
  • Design: 0.15 W/m.K
  • Dry Density: 600 kg/m³
  • Eight Scratch markings to identify block