KalsiWAB is a 9mm thick autoclaved cellulose fibre-reinforced cement sheet available in the following sizes: 1200mm (w) x 2400mm, 2700mm, and 3000mm (l).

IBS supplies KalsiWAB fibre cement board (KalsiWAB) for use as

• Internal dry wall
• Internal and external ceiling panel
• Floor and wall substrate lining (over an existing structural floor) and wall framing for wet areas

KalsiWAB is an internal wall and ceiling lining in wet and dry areas, and a base for laying ceramic tiles over a timber floor or reconstituted wood-based substrate.

• In applications where a Material Group Number is required (clause C3.4(a)), the Kalsi fibre-cement board is at least 6mm thick and any waterborne or solvent borne paint coating is not greater than 0.4mm thick
• In wet areas the Kalsi fibre-cement board is at least 9mm thick and coated with water resistant paint or tiles (KalsiWAB, or KalsiFlex)
• In areas adjacent to food preparation the Kalsi fibre-cement board is at least 9mm thick and coated with water resistant paint or tiles (KalsiWAB, KalsiGroove or KalsiFlex)

Kalsi fibre-cement boards shall be installed in accordance with the installation instructions provided by IBS in its Installation Guide

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

• Clause B1 Structure — B1.3.1; B1.3.2; B1.3.3(b) when used as tile floor underlay, B1.3.3(j) when used as wall lining); B1.3.4
• Clause B2 Durability — B2.3.1(b) when used as a substrate for tile; B2.3.1(c)
• 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)