Thermalite Trenchblock

‘Strength 4.0 N/mm2
Thermal conductivity 0.15 W/mK
Density 600 kg/m3

Thermalite Trenchblock is a tried and tested, economical alternative to the construction of cavity walls with concrete infill for foundations.
• For use in soils of up to Design Sulfate Class DS 4
• Available with tongue and groove joints and handholds
• Improves thermal performance

Thicknesses: 255 - 355mm’