675 Ind. Admin. Code 14-4.4-96
Current through May 29, 2024
Authority: IC 22-13-2-2; IC 22-13-2-2.5; IC 22-13-2-13
Affected: IC 22-12; IC 22-13; IC 22-14; IC 22-15; IC 36-7
Sec. 96.
Change the text of SECTION N1103.3.1 to read as follows:
Supply and return ducts in attics shall be insulated to an R-value of not less than R-8 for ducts 3 inches (76 mm) in diameter and larger and not less than R-6 for ducts smaller than 3 inches (76 mm) in diameter. Supply and return ducts in other portions of the building shall be insulated to not less than R-6 for ducts 3 inches (76 mm) in diameter and larger and to not less than R-4.2 for ducts smaller than 3 inches (76 mm) in diameter.
EXCEPTION: Ducts or portions thereof located completely inside the building thermal envelope.
675 IAC 14-4.4-96