29th February 2024


Duct board is a semi rigid/rigid board manufactured from Rock Wool using thermosetting binder to acquire rectangular shape according to ASTM C-612.

Application It is used as thermal insulation for the heat ventilation and air condition system to be installed in all types of building structures, in order to achieve the required thermal performance coupled with fire safety and acoustic insulation.
Storage It must be stored in an area where it is protected from water exposure and physical damage.
Maintenance Once Duct board is properly installed they do not need any maintenance.
  • Pre-installation check: The duct board dimension, face and specification are as required by the HVAC system.
  • When installing the duct board, it is essential to have: The Proper fastener material and insure that the HVAC ducts are in the proper shape clean and dry.
  • Compress the edges of each duct board gently and slightly in the required direction to form a closely butted box around the duct, trimming and cutting may be necessary. Use the proper fasteners to keep the duct board in their place.
  • Noncombustible
  • Does not encourage the growth of fungi, molds or bacteria.
  • Water repellent.
  • Environment friendly (CFC and HCFC free).
  • Binder free.
Facing It is faced on one or both sides with reflective vapor barrier material to prevent moisture penetration through the insulation.
Packing It is packed in polyethylene bags.

Product Range:


Nominal Density


Width (m)

Length (m)



0.4, 0.6, 1.2


35, 50, 65, 100

30 - 50

Note: Other sizes can be produced on special order.