Extruded polystyrene (XPS) insulation thermal properties. The values are based on those in the ASHRAE 2017 Handbook of Fundamentals, Chapter 26.
record Xps = IDEAS.Buildings.Data.Interfaces.Insulation(k = 0.03, c = 1500, rho = 30, epsLw = 0.8, epsSw = 0.8);