Thermal performance

ASTM C 1071 establishes the following maximum thermal conductivity values for fibrous glass duct liners at 75˚F (24˚C). (See Table 3.)

Maximum thermal conductivity values
Thermal values are for insulation only as determined by
ASTM C 518 at 75˚F (24˚C) mean temperature
and do not include air films or reflective surfaces.
Values are subject to normal manufacturing
and testing tolerances.

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