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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 measures the ability of a metal to conduct heat. This property varies across different types of metal and is important to consider in applications where high operating temperatures are common. In pure metals, thermal conductivity stays roughly the same with increases in temperature.