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Cavitybatt/ Cavitylite

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Cavitybatt is a unique glass wool wall insulation product from ISOVER, designed to insulate cavity walls and dry wall systems.

Dry Wall Insulation

Cavitybatt and Cavitylite has been specially developed for insulation within steel frame structures, timber frame buildings and dry wall systems. It is manufactured using high quality glass wool and are glass tissue faced on one side for ease of handling and improved rigidity.

Key Benefits

  • Lifelong energy savings
  • Exceptional acoustic properties
  • Lightweight and easy to handle
  • Maintenance free
  • Long product life – will not readily age
  • Self supporting – will not sag
  • Compression packed – to reduce volume and optimise transport and storage
  • High tear strength yet readily cut with a sharp blade


  • Steel frame buildings
  • Timber frame structures
  • Dry wall systems
  • Designed for use in cavity walls but may effectively be used on top of ceilings, along the roofline, or within masonry wall cavities

Technical Properties

Performance Code Value Unit Comment
Conductivity K 0,038 W/m.K 14 kg/m³

Typical values

Variants Details


SKU Thickness Width Length Thermal resistance
11326 75 600 1200 1,97
14597 51 600 1200 1,34
14598 63 600 1200 1,66
14599 102 600 1200 2,68



  • Stock items (1 – 3 working days)
  • Made to order items (7 – 15 working days)
  • Standard items (3 – 7 working days)

Fire Properties

  • Non-combustible – tested to SANS 10177 Part 5 – Class A1, s1, d0 according to EN 13823
    EUROCLASS A1 – EN 13501-1
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