Before revision: Properties + Typical Intrinsic Properties of Bituminous Geomembranes Property Standard Units Value Application Relevance Coefficient of Thermal Expansion ASTM D 1204-02 °C⁻¹ 1E-05 A low coefficient of thermal expansion prevents problematic wrinkling with exposure to sunlight or heat .
After revision: Properties + Typical Intrinsic Properties of Bituminous Geomembranes Property Standard Units Value Application Relevance Coefficient of Thermal Expansion ASTM D 696 °C⁻¹ 10-5 A low coefficient of thermal expansion prevents problematic wrinkling with exposure to temperature variationLinear .