BBA approved – certificate 16/5357 (Plasterboard Thermal Laminate) Fire Classification Euroclass B-s1, d0 Reaction to Fire classification, according to BS EN 13501-1. Product Specification Thickness (mm)*Length (mm)Width (mm)Lambda Value (W/m.K)R-Value (m².K/W)# 37.5 2400 1200 0.022...