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Product Details

Factoryboard is a rigid board manufactured from non-combustible Glasswool insulation. Available in 25,40 or 50mm thick. It can be supplied with an ASTM E-84 tested reinforced foil or white metalized foil. Alternative facings are also available (black metalized foil, white embossed vinyl or black non-woven glass tissue).

Quality Management System

Isover products are manufactured according to ISO 9001:2000.

Features & Benefits

  • Life long energy savings
  • Excellent thermal & acoustic properties
  • Maintenance free
  • Long product life - will not readily age
  • Significantly reduces heat loss/gains
  • Made to size to reduce wastage

Thermal Properties

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

Fire Properties


  • Class 1 fire index rating - tested to SANS 10177 Part 3
  • Class A1, S1, do according to EN 13823
  • EUROCLASS A2 - EN 13501-1
  • Tested to ASTM E-84
  • Flame Spread Index: 10
  • Smoke Development Index: 0


  • Tested to ASTM E-84
  • Flame Spread Index: 20
  • Smoke Development Index: 15

Acoustic Properties

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


  • Multi-purpose wall cladding
  • Recommended to be installed in a grid system.
  • Over purlin roof insulation for new buildings or in a supporting grid system for existing buildings


  • 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
  • Dust settlement will not hamper the products performance

Physical Properties

Table to be updated!

  • Lengths can be tailormade in metric units to the nearest 100mm
  • Maximum recommended lengths: 25mm Board - 2.8m, 40 & 50mm Board - 3.2m

Tools needed for Installation

Boards are manufactured to length - a sharp knife will be required should cutting be necessary.

Installation Instructions

Take care when installing in windy conditions.

  1. When installing over purlins, a C clip/metal saddle must be inserted through the board so that the roof sheet clip is fixed to the structure and not to the board.
  2. Use H-sections or T-sections to span between the purlins to support the board along the longitudinal joint. Minimum recommended face width of T or H section - 35mm.
  3. For retro-fit roof insulation installations, it is recommended that Factoryboard be installed as a ceiling in a standard suspended grid system.

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 Specification

Install (25/40/50)mm thick, rigid "Factoryboard" as an aesthetic, acoustic and thermal (wall cladding/ suspended ceiling/over purlin roof insulation). Density 8okg/m3 faced with (reinforced foil/white metalized foil/black metalized foil/white embossed vinyl/black non-woven glass tissue). Install as per manufacturer's specifications.

Additional Information

Technical Data

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