You are using an outdated browser version not supported by this website.
Click here to upgrade your browser

InteriorInterior
IBS FIBRE® Flex
Description

IBS FIBRE® Flex is a premium lining board. Manufactured from a precise combination of cement, silica and cellulose, the boards are cured and stabilised in an autoclave in a special process involving steam, high temperatures and pressure that ensures optimum dimensional stability and mechanical resistance.

Key Features
  • Flexibility
  • Durability
  • Moisture resistance
  • Easy installation
  • Sustainability
  • Versatility
Scope of Use

The scope of this specification pertains to the use of IBS FIBRE® Flex, applicable to buildings that meet the limitations set forth in the New Zealand Building Code (NZBC) Acceptable Solution‘E2/AS1’ paragraph 1.1.1.2

IBS supplies FIBRE® Flex for use as

  • Suspended ceilings
  • External ceiling lining
  • Soffit & eaves lining
  • Subfloor enclosure
  • Wall lining
  • Floor or deck substrate for ceramic tiles, slate and stone composite products
  • Deck substrate for waterproof membranes
Limitations on Use

FIBRE® Flex is an internal wall and ceiling lining in wet and dry areas, and external ceiling, soffit and eaves lining where not exposed to the weather.

  • IBS FIBRE® Flex must not be used in applications outside the scope of E2/AS1 unless supported by an Alternative Solution.
  • Ensure compatibility with other building elements and materials as per E2/AS1 Clause 4.0 – Materials.

FIBRE® Flex boards shall be installed in accordance with the installation instructions provided by IBS in its Installation Guide

Statement of Building Code Compliance

If designed, installed and maintained in accordance with all IBS requirements, FIBRE® Flex product will meet the following provisions of the NZBC:

  • Clause B1 Structure — B1.3.1; B1.3.2; B1.3.3(b); B1.3.4 (B1.3.3(j) applies to KasiFlex used as wall lining)
  • Clause B2 Durability — B2.3.1(b); B2.3.1(c) (B2.3.1(b) when used as a substrate for tile)
  • Clause C3 Fire affecting areas beyond the fire source — C3.4(a)
  • Clause E3 Internal moisture — E3.3.3 (contributes to); E3.3.4 (contributes to); E3.3.5 (contributes to); E3.3.6 (contributes to)
  • Clause F2 Hazardous Building materials — F2.3.1
  • Clause G3 Food preparation and prevention of contamination — G3.3.2(a) (contributes to)
Documents
PASS

Pass NO 19302 expire 03/2027

Codemark

May 2026

IBS FIBRE Flex Technical Data Sheet

September 2025

IBS FIBRE Flex Installation Guide

November 2025

IBS FIBRE Flex Warranty

September 2025

Since 1993, IBS has been working with the top building products producers from around the world to bring New Zealand a panel product range to help Kiwis build better.

Product Enquiries

News from Independent Building Supplies

IBS FutureFloor: A Moisture-Resistant Flooring Panel for New Zealand Construction NEW
CodeMark Certified Rigid Air Barrier and Bracing System for Timber Construction
Durable, Easy-Clean Wet Wall Lining for Bathrooms, Kitchens and Laundries
Get a free weekly digest of essential news

New and updated architectural products, design solutions, inspiration, technical advice and more when you sign up for EBOSS.