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Glass is far inferior to paper, plastic and Styrofoam in terms of insulation. Thermal conductivity in terms of BTU/(feet - hour - degrees F) is 1.82 for glass, 0.09 for paper, 0.06 for Styrofoam. The conductivity of plastics varies depending on the materials: for polypropylene and polycarbonate, the thermal conductivity values are 0.69 and 0.35, respectively.
Thermal Conductivity of Gases. III. Some Values of the Thermal Conductivities of Argon, Helium, and Nitrogen from o Â°C to 75Â°C at Pressures of 1 X 105 to 2.5 X 107 Pascals * Leslie A. Guildner Institute for Basic Standards, National Bureau of Standards, Washington, D.C. 20234 (November 8, 1974)