record BasePlateMultistorey1958to1968 = BuildingSystems.Buildings.Data.Constructions.OpaqueThermalConstruction(final nLayers = 3, thickness = {0.05, 0.02, 0.2}, material = {BuildingSystems.HAM.Data.MaterialProperties.Thermal.Masea.Concrete(), BuildingSystems.HAM.Data.MaterialProperties.Thermal.Masea.FlaxInsulation(), BuildingSystems.HAM.Data.MaterialProperties.Thermal.Masea.Concrete()});