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KAPO Calcium Silicate Interior Lining Board
Description

KAPO Calcium Silicate Board (KAPO) is manufactured from non-toxic minerals incorporating a woven mesh, which exhibits excellent fire, sound, moisture and mould resistant properties. It is used extensively overseas as a wall-papered lining alternative to plaster-based and fiber cement boards for interior use. 

Key Features
  • Produced from natural, inorganic raw materials and the chemical reaction is irreversible which results in a chemically stable board that is hard but flexible
  • Supplied in a range of thicknesses, nominally 6mm, 9mm and 12mm
  • Light weight and high bending strength, it can be easily handled and conveniently installed
  • Light, fireproof and waterproof
  • Will not rot or physically deteriorate and it is highly resistant to the effects of moisture
  • Safe to work with, containing no hazardous materials and is 100% asbestos free
  • Resistant to climatic conditions and moisture - tested to many cycles of soaking, freezing and heating (freeze/thaw test method)
  • It has excellent workability that can be cut, drilled, sanded and worked with proper tools and machiners
  • It does not harbour insects, mildew, mould, fungus or bacteria
  • 20 years warranty - must adhere to manufacturer recommended maintenance programme
Scope of Use

Interior Finishes

KAPO Board has been appraised to be used as an interior lining relying on 400mm or 600mm stud centres or ceiling joist centres for framing and using either 6 or 9mm thick board.

The BEAL appraisal is limited to the boards and nominated jointing systems only and excludes any finishing system, such as plastered finishes or tiling systems, which must comply with the relevant clauses of the New Zealand Building Code.

Framing

KAPO Board must be used in conjunction with timber framing and other components of a wall assembly that comply with NZS3604 or in place of timber framing, with lightweight steel framing that complies with NASH 3405, in all respects except as varied herein, in order to meet the Performances of the Building Code claimed in the BEAL Appraisal.

Statement of Building Code Compliance

In the opinion of BEAL, KAPO Board, if designed, and used, installed and maintained in accordance with with the statements and conditions of BEAL Appraisal C820, will meet the following provisions of the NZBC:

  • Clause B2.3.1 (a) - Durability: The KAPO Board, when used as part of an interior lining or interior cladding that is designed and installed in accordance with the manufacturer’s instructions must meet Performance B2 of the NZBC. In other words, the building system will satisfy the performance requirements of the code for not less than 50 years.
  • Clause C3.3.5 - Spread of fire: The wall system, when used as part of an exterior cladding that is designed and installed in accordance with the manufacturer’s instructions must meet Performance C3 of the NZBC. In other words, External walls and roofs shall have resistance to the spread of fire, appropriate to the fire load within the building and to the proximity of other household units, other residential units and other property.
  • Clause E2.3.2 – External Moisture: The wall system, when used as part of an exterior cladding that is designed and installed in accordance with the manufacturer’s instructions must meet Performance E2 of the NZBC. In other words, roofs and exterior walls must prevent the penetration of water that could cause undue dampness, damage to building elements, or both.
  • Clause F2.3.2 – Hazardous Building Materials: Building products must not contain hazardous materials, to comply with clause F2.3.2 of the Building Code.
  • Clause G6.3.1 – Airborne and Impact Sound: Walls, floors and ceilings must not have transmission class of less than 55.

KAPO Board has been fire tested by BRANZ and received a Group 1S interior fire rating. 

In-Service History

Enviro Square's KAPO Board manufacturer represents the vast majority of the Chinese market. What is more, they have been delivered in large volume to many European countries like Italy, Sweden, Norway, Russia, UK, Spain, Poland and many other countries in Southeast Asia and Middle East.

In recent years they have set up close co-operative relationships with customers in New Zealand, South America, USA and Canada. The reliable quality and reasonable price of the products have earned KAPO Board recognition and favour from the customers in both the domestic and overseas markets.

B2 Durability compliant
Durability
C Protection from Fire compliant
Protection from Fire
E2 External Moisture compliant
External Moisture
F2 Hazardous Building Materials compliant
Hazardous Building Materials
G6 Airborne and Impact Sound compliant
Airborne and Impact Sound
Independent Assessment
Independent Assessment
Test Results
Test Results
Interior Fire Rating 1S
1S
Documents
Dulux Coating Study
Appraisal, Accreditation, Certification and Testing
Independent Appraisal (BRANZ)
Test Results
Test Results
Warranty
Technical Manual
CAD/PDF Details
10A Wall to Stainless Steel Shower Base
11A Wall To Floor Junction - Tiled
14A - KAPO BOARD AND BATH - SHOWER BASE JUNCTION

14A

15A - KAPO BOARD AND PLUMBING FIXTURE JUNCTION

15A

16A - SEALING AROUND SPLASH ZONES (SQ SINKS)

16A

17A - BUTT JOINT DETAIL (DRY AND WET AREA, TILED OVER)

17A

18A - INTERNAL CORNER WALL TO WALL JUNCTION

18A

19A - HORIZONTAL FIXING LAYOUT ON TIMBER BATTEN - STEEL FURRING

19A

1A Wall Framing Fixing Layout - untiled

1A

2A Wall Framing fixing Layout - tiled wet area

2A

3A Wall corner Junction

3A

4A Wall Corner Junction - Tiled

4A

5A Ceiling Framing Fixing Layout

5A

6A Structural Bracing Fixing Layout

6A

7A Internal Wall Butt Joint (Dry and Wet Area)

7A

8A Proprietary PVC Joint

8A

9A Proprietary Flush Tape Joint

9A

Enviro Square was set up to promote the use of environmentally friendly building materials and create a better living environment with one of the more advanced building materials in New Zealand.

Product Enquiries

News from Enviro Square

KAPO Board Demonstrates Superb Moisture Resistance
Enviro Square Meets Group 1-S for Interior Wall Linings
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