NC State Extension

Aluminum and / or Butyl Tape

Air duct tape for permanently sealing fabricated joints and seams of HVAC air ducts and thermal insulation. All pressure-sensitive tapes used in the manufacture of rigid fiberglass ducts shall be UL 181A listed and UL 181B for flexible ducts.

Written By

Photo of Laura LanghamLaura LanghamEnergy Conservation Program Manager (919) 515-8474 laura_langham@ncsu.eduAgricultural and Human Sciences - NC State University
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