Ventilation systems, air ducts
  Ventilation system duct isolation using PEPI REFLEKT PLUS 5 mm Pepi REFLEKT ADH
  PEPI REFLEKT ADH has an adhesive surface being applied directly to the duct.
  Pepi REFLEKT PLUS 5 mm material necessary for the air gap consists of polyethylene foam columns to form a ring wrapped around duct 30-60 cm apart.
  Joints have to be sealed with an aluminum tape.