KAPO Board Demonstrates Superb Moisture Resistance

KAPO Board is a calcium silicate board that offers a high-performance alternative to plaster-based and fibre cement wall linings. With less fibre content than standard fibre cement boards, it is a non-hazardous product that provides a host of benefits including resistance to fire, moisture and mould.

A key benefit of KAPO Board is its moisture resistance, which makes it ideal as an interior wet area lining for kitchens, laundries and bathrooms. Extensive testing has been undertaken to ensure the board will perform in the toughest wet area conditions.

Results from BEAL testing demonstrate that the board will not disintegrate when immersed in water or exposed to freeze-thaw cycles for prolonged periods of time. Testing also shows no deformation under sustained damp conditions, making KAPO Board perfectly suited for tropical climates and other humid environments.

Exclusively supplied in New Zealand by Enviro Square, KAPO board is suitable for a range of interior applications. The versatility of KAPO board means it can be used as a ceiling and wall lining throughout all areas of a project, effectively simplifying construction processes and eliminating waste.

Recent projects in Queenstown and Auckland have seen KAPO Board’s resilience and flexibility put to the test as a bathroom wall lining, a lining above a fireplace and as a ceiling lining in a unique grooved application.

To request a KAPO Board sample pack, simply email [email protected]

KAPO Calcium Silicate Interior Lining Board

Enviro Square

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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.

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.

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.

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.

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