.BuildingSystems.HAM.Data.MaterialProperties.Thermal.Masea.OakWood .BuildingSystems.HAM.Data.MaterialProperties.Thermal.Masea.OakWoodrecord OakWood = BuildingSystems.HAM.Data.MaterialProperties.BaseClasses.MaterialThermalGeneral(id = 7, name = "Oak wood (Eichenholz alt)", lambda = 0.18, c = 1600, rho = 740);