Boards Asasutjarit et al. (2007) determined the physical, mechanical and thermal properties of coconut coir-based light weight cement board after 28 days of hydration. The parameters studied were fibre length, coir pre-treatment and mixture ratio. Boiled and washed fibres with 6cm fibre length gave better results. On the other hand, optimum mixture ratio by weight for cement: fibre: water was 2:1: 2. Also, tested board had lower thermal conductivity than commercial flake board composite.