NC State Extension

Butyl and / or Aluminum Tape – Defined

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.

Aluminum Tape - Image

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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