Thermalite/Celcon Shield Block 3.6N 440mm x 100mm x 215mm admin 7 years ago Technical specification Height –215 mm Length –440 mm Width –100 mm Weight- 7 kg Colour –Grey Thermal Conductivity –0.15 W/mK Compressive Strength –3.60 N per mm2 Fire Rating –Class A4 BBA Approved –Yes Type –Lightweight Block