Brick->Isolation->25′ GT-MANTO25 25′ Coated Brick Dimensions (cm): 19.7×24.0x24.5 Weight (kg/piece): 8.50 Wall thicknes 25cm:Pieces/m2: 19 1m2 Weight/m2: 161 1m3 Weight/m3: 680 Thermal Conductivityi (λ) : 0.160