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Product Details

Ductwrap is a thermal insulation blanket specifically designed to wrap around air conditioning ducts. Manufactured from high quality, non-combustible Glasswool, bonded with an inert thermosetting resin binder and faced with a reinforced foil. A 100mm overlapping flange is provided on one side for a neater appearance and adequate seal.

Quality Management System

Isover products are manufactured according to ISO 9001:2000.

Features & Benefits

  • Life long energy savings
  • Non-combustible
  • Lightweight - facilitates fast and easy installation
  • Safe application and use
  • Can be used in a high humidity environment
  • Long product life
  • Ensures lower operating costs
  • Noise reduction
  • Condensation control

Fire Properties

Non-combustible - tested to SANS 10177 Part 5

Thermal Properties

Significantly reduces heat gains & losses.

Acoustic Properties

Offers exceptional acoustic properties & enhances indoor environmental quality by absorption of mechanical noise generated by air conditioning equipment.


External wrap around metal airconditioning ducts:

  • Rectangular and round heating, ventilation and air­ conditioning systems.


  • Odourless, inert and fully compatible with all standard building materials & components
  • Will not promote corrosion of steel, copper or aluminum
  • Will not sustain vermin
  • Will not breed or promote fungi, mould or bacteria
  • Non-hygroscopic
  • Prevents condensation on cold metal duct surfaces­ extending the life of the system

Physical Properties

Table to be inserted!

Tools needed for Installation

Tape Measure, sharp knife/blade, straight edge & strapping equipment

Installation Instructions

  1. Before applying ductwrap, air ducts shall be clean, dry and tightly sealed at all joints and seams.
  2. All portions of duct designated to receive ductwrap shall be completely covered with duct wrap.
  3. Install Ductwrap with the facing showing, butting the adjacent rolls tightly together, utilizing the 100mm facing overlap to ensure an adequate seal.
  4. Seams and joints shall be sealed with pressure­ sensitive tape matching the insulation facing.
  5. Where rectangular ducts are 600mm in width or greater, ductwrap insulation shall be additionally secured with strapping at 300mm centers.
  6. Where a vapour barrier is required; seal all tears, punctures and other penetrations of the ductwrap facing.

Handling & Storage

Store product undercover, and in dry conditions. Store flat. Handle with care, especially on the edges and corners, which can be damaged if subject to sharp or heavy impact. Do not apply excessive pressure, for example by standing or sitting on the product, as permanent damage may be caused.

Architectural Specification

Install (25/40/50)mm thick flexible non-combustible lightweight "Ductwrap" with reinforced foil facing over rectangular and round (heating/ventilation/air conditioning) duct system.

Additional Information

Technical Data

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