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Thermal Performance

Thermal resistance (R-value) or thermal conductivity of a material or assembly, indicating its ability to insulate against heat transfer.

Scope Note: ICC International Energy Conservation Code (IECC); ISO 22007; ASTM C518; EU Energy Performance of Buildings Directive.

Allowed Unit, Aggregation Method, Improvement Direction

untp:allowedUnit C62
untp:aggregationMethod weighted-average
untp:improvementDirection higher