Thermalite Aircrete Hi-Strength 7

Thermalite Hi-Strength 7 has been specifically developed for structural applications where loading conditions require greater strength, such as flats of three storeys and above, offices, supermarkets and retail parks.


  • Superior strength
  • Available in a range of thicknesses
  • 80 per cent recycled content
  • Moisture resistance
  • BES 6001 Responsible Sourcing certification

Key Data

Compressive Strength: 7.3 N/mm²

λ Design: 0.18 W/m.K

Dry Density: 730 kg/m³

Working Dimensions

Face dimensions (mm): 440 x 215, 440 x 430

Dimensions and Weights

Block thicknesses and weights at equilibrium density (for 440 x 215mm)

Height Length Width Dry Weight
215mm 440mm 100mm 7.1kg
215mm 440mm 115mm 8.2kg
215mm 440mm 125mm 8.9kg
215mm 440mm 140mm 10kg
215mm 440mm 150mm 10.7kg
215mm 440mm 190mm 13.5kg
215mm 440mm 200mm 14.2kg
215mm 440mm 215mm 15.3kg

Cavity Walls
Separating Walls
Solid Walls

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Thermalite Guide

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