29th February 2024


Duct Wrap is a flexible insulation manufactured from Rock Wool using thermosetting binder, to acquire the required roll shape complying with ASTM C-1290 (Standard Specification for Flexible Blanket Insulation used to insulate HAVC Ducts).

  • It is used for thermal insulation of the HAVC ducts.
  • It can be installed on all types of flat and curved ducts, in order to achieve the required thermal insulation coupled with fire safety and acoustic insulation.
Storage It must be stored in an area where it is protected against water and physical damage.
Maintenance Once duct warp are properly installed they do not need any maintenance.
  • Pre-Installation check: The duct warp dimension, facing and specification are as required by the HVAC system.
  • When installing duct warp, it is essential to have: The Proper fastener material and the HVAC duct are in the proper shape clean and dry.
  • Place the duct wrap gently and carefully around the duct, then cut and trim the duct wrap as per required dimensions making sure that the edge of the duct wrap closely butted. Use the proper fasteners to place the duct wrap in location.
  • Excellent thermal insulation.
  • Effective acoustic insulation.
  • Fire safe
  • Physical and chemical properties do not change with time.
  • No health hazard, asbestos free.
  • Environment friendly (CFC and HCFC free)
  • Does not encourage the growth of fungi, molds or bacteria.
  • Reduce condensation threat on the inner wall of HAVC Ducts
  • Easy to cut, handle and install.
  • Saving energy thus saves money.
Facing It is faced on one or both sides with reflective vapor barrier material to prevent moisture penetration through the insulation.
Technical Properties
  • K-value range from 0.032 - 0.035 (w/m K) @ 10 ºC
  • Non-combustible.
  • Flame spread index <10.
  • Shot content meets the requirements of ASTM C - 612.
  • Smoke developed <20.
  • Water vapor absorption <1% weight.
  • Negligible shrinkage when exposed to high temperature.
  • Does not show any tendencies for corrosion when placed directly on steel.
Packing It is packed in polyethylene PE Bags

Product Range:


Nominal Density


Width (m)

Length (m)





35 - 50

40 - 50

Note: other sizes can be produced on special order.