The passive-designed "Breathing Wall" using charcoalized rice straw was proposed as one of the environmental-conscious constructional materials. The experiments were carried out using two types of structure of charcoalized rice straw in order to confirm the capability of the structures as a Breathing Wall in relation to the characteristics of air flow and of the thermal performance. The results of this study showed a good indication that these structures using charcoalized rice straw can be utilized as a Breathing Wall.
