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Product Details

Cavitybatt has been specially developed for use as cavity fill within steel frame structures, timber frame buildings & Gypsum dry wall systems. Cavitybatts are manufactured using high quality Glasswool & are glass tissue faced on one side for ease of handling and improved rigidity.

Quality Management System

Our products are manufactured according to ISO 9001:2000.

Features & Benefits

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

Fire Properties

  • Non-combustible - tested to SANS 10177 Part 5
  • Class A1, S1, do according to EN 13823
  • EUROCLASS A1 - EN 13501-1

Thermal Properties

Contributes to indoor comfort and life long energy savings by reducing heat loss/gain due to the inherent thermal insulation properties.

A Gypsum dry wall system correctly designed and insulated will offer the same or better thermal properties than a conventional brick & mortar construction.

Acoustic Properties

Offers exceptional acoustic properties & enhances indoor environmental quality by absorption of noise.

Our insulation reduces sound transmission to and from a room or building.

A Gypsum dry wall system correctly designed and insulated will offer the same or better acoustical properties than a conventional brick & mortar construction.


  • Steel frame buildings
  • Timber frame structures
  • Gypsum 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


  • 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

Tools needed for Installation

Batts are designed around the frame/stud system for ease of installation, therefore, minimal tools are required. A sharp knife/blade will come in handy for off cuts and for slitting batts to fit over piping and conduits when used as cavity fill.

Installation Instructions

  1. Open packaging allowing space for the initial   immediate recovery of compressed product.
  2. Push individual batts firmly into the cavity space with glass tissue facing on the exposed side.
  3. Use a sharp knife to slit the Cavitybatt to encapsulate piping/conduits.
  4. Use a sharp knife to cut batt around any plug points.
  5. Make sure that there are no gaps, which will cause thermal and noise leakage.

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 Spcecification

Install (51/63/100/102 mm) thick self-supporting non­combustible lightweight, glass tissue faced Glasswool "Cavitybatt insulation", offering a thermal resistance value of (1.34/1.66/2.63/2.68)m2 K/W for heat and/ or acoustic control. Install strictly in accordance to manufacturer's detail and specification.

Additional Information

Technical Data

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