Celotex Isover


ISOVER CLIMCOVER Slab Alu2 Standard provides thermal and acoustic insulation for rectangular metal ductwork, fulfilling the requirements of BS 5970.

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With increased mechanical performance, it offers a high quality finish and is suitable for applications inside or outside a building (with appropriate cladding).


  • Insulation of rectangular metal ductwork inside a building
  • Insulation of rectangular metal ductwork outside a building (with appropriate covering) 

Product Features

  • 1200 x 600mm glass mineral wool slab with an aluminium foil facing
  • Manufactured from up to 75% recycled glass
  • Achieves an A+ generic rating within the BRE Global Green Guide

Product Properties

  • Board / Roll size: Width 600mm, Length 1200mm
  • Thickness : 40-50mm
  • Material: Glass Mineral Wool with an aluminium foil facing

Product Performance

  • Lambda: See datasheet
  • Reaction to Fire: Euroclass A2 Reaction to Fire classification, according to EN 13501-1

Product Benefits

  • Helps to meet thermal building regulations and offers energy savings by protecting the installation from external thermal variation
  • Noise levels from ducts can be reduced due to the inherent acoustic properties of CLIMCOVER, improving the comfort of those living or working within the building
  • Increased mechanical performance – suitable for insulation of ductwork both inside and outside a building (with appropriate covering)
  • A factory applied aluminium foil facing provides an inherent vapour barrier and a professional finish
  • Ease of install – lightweight and offers a combination of flexibility and mechanical strength, allowing fast and efficient cutting and fitting. Offers consistent thickness recovery and a uniform shape with no soft edges, to obtain a neat and professional finish
  • The slabs are designed to withstand site conditions, storage and transportation


Download the HVAC solution guide here