Weatherboard cladding with timber frame, weather barrier, particleboard insulation, steel frame and plasterboard lining

Cladding system comprising: 22mm softwood weatherboard, 100mm timber frame, 2 mm polyethylene weather barrier membrane, 22 mm cement bonded particleboard, 100 mm mineral wool batts insulation and 150 mm steel frame lined with 12.5 mm gypsum plasterboard.