STD_WAL2 (IES database) 0.2599 0.7 0.0001 Rainscreen 0.003 50 7800 450 0.13 Cavity 0.05 - - - 3.256 Insulation 0.0814 0.025 20 1030 0.0522 Cement bonded particle board 0.012 0.23 1100 1000 0.13 Cavity 0.05 - - - 0.0595 Plasterboard 0.0125 0.21 700 1000 150-350 (estimated) xxx