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K-Wall Groove board cladding

K-Wall Cladding

This remarkable K-wall product using 22nd century technology can be set internally or externally.

Known as Groove board or plank board it comes is size 2.7m x1.0m  x12mm and can be set horizontal or in vertical look alike timber set configuration  using fast fix ship lap joints.

K wall cladding is a thicker, 12mm and stronger than conventional 7.5mm products on the Australian market

Apart from being a non combustible building board AS1530.1 it will hold back FIRE for 90 minutes with just 1 x 10mm K wall fire resistant building board . AS1530.4 (C1..C19)-/ 2025  CFC will explode at 800 deg c

K Wall is a thicker more secure 12mm, unlike CFC cement sheets Villa board and Blue board or CSR and James hardy Building board and James Hardy groove board at 7.5mm K wall is less expensive over all when fire protection building is required with less material.

Standard board sizes

Board nameSize (width/length)ThicknessEdgeWeightPattern
K-Wall1000x270012mmShip lap36kgGroove


NATA/ CSIRO North Ryde SYD  under ISO 17025 Infrastructure Technologies and Resolute labs QLD. Technologies and Resolute labs QLD

  • AS1530.1, AS1530.4 (C1..C19)-/ 2025  …AS1530.8.2  AS 3959 BUSHFIRE ASSESSMENT BAL FZ ,ROOFING, WALLS EAVES FLOORS ETC (NCC) National Construction Code .
  • AS/4964 AND AS/717 non asbestos content and acoustics to Rw 62
  •  FRL TO 120 Minutes with steel framing ( 2 layers 10mm) ASK US)

Bushfire building products

K wall is a non combustible building board while enabling a timber appearance cladding or timber look weather board  particularly applicable in bush fire and similar BAL bushfire areas like BAL 19 BAL 29 ,BAL 40, and BAL FZ Flame zone building , where no exposed timber facings or timber cladding can be used. FireCrunch K wall is a bushfirefire proof building board that will survive your home in bush fire well over BAL FZ 1200 deg c.

Long life cladding board

Significant additional benefits are a very long life as K wall will not rot like timber, is unaffected by weather when sealed.

Termite Protection

K-Wall is impervious to termites so protects all expensive timber framing. K-Wall unlike so called water proof plaster board , will not degrade at all in water or flooding  so provides a unique flood proof building board.


Green environmental building or planet friendly building products are hard to find.

FireCrunch K Wall environmental cladding is probably the best choice in green option, eco building materials . K Wall uses kiln temperatures of some 650 deg c half that of cement plaster CFC products at 1300 deg c. On an index of 100 K wall FireCrunch is 50% less Co2 in manufacturing however, there is more.

FireCrunch K Wall is a Magnesia carbonation product which is poured into moulds and during the carbonation period of 14 to 21 days at ambient temperatures draws back 90% of the Co2 produced, so 90% of 50% makes around 5% and an almost carbon neutral Production process.  1300 933 102   technical@firecrunchaustralasia.com.au

Refer NEW SCIENTIST magazine USA on magnesia products


Quick Reference Topics

  • Fire resistant to extremely high temperatures (1200ºC).
  • Meets BAL FZ and up to FRL 90/90/90.
  • Non-combustible (AS 1530.1) and smoke release AS/3837.
  • Fire Tested (AS 1530.4/2016)
  • 30,60 90 Minute fire resistance
  • Non-asbestos, NATA Australian certification.
  • Resistant to flooding and prolonged water emersion.
  • Resistant to bacteria moisture, humidity, mould and mildew.
  • Completely resistant to termites and insects.
  • Low thermal conductivity ~0.44 (W/mk).
  • Higher R values than plasterboard.
  • Less expensive, eliminates multiple layers of plasterboard for high FRL.


Australian Standards (Certificated in Australia)

See certifications:

1.5 hours 1 x 10mm sheet.

10 times stronger than plasterboard, load bearing 55kN (1.5 hrs) at 1200⁰C (see CSIRO fire test report).

Rw 62 AS/717.1 (see report certification).

Nil content test AS 4964 R and U value (see Tech info charts).

Cuts, saws, drills, routs, with timber tools, power gun screwing, massive time saving on installation

Labour cost benefits
FireCrunch Requires 1 sheet each side for FRL up to FRL 90/90/90 (p/ board needs 3 layers 13mm each side).

10 x Stronger than Plaster Board.

95% less Co2 Emission than Plaster Board

CSIRO Logo FireCrunch has been fire tested by Australia’s
highest testing authority, the CSIRO.

Our technology helps prevents fire damage. Download our brochure containing all our essential services which showcases the quality of FireCrunch.

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