Field Experiments on Mechanical Double-skin System of Room-Side Air Gap in a Residential House

One common type of Japanese houses is detached residential wooden house. The wood components within a wall may undergo decay because of condensation in the wall or flushing defects. A double-skin system of room-side air gaps is considered to be an effective technique to handle these problems. In this system, during the summer, the airflow driven by mechanical ventilation moves through the room-side air gap in the wall and removes heat load from the inner surface of the insulation material. In this research, a field experiment was conducted in a two-story residential house in Tokyo of Japan in the summer. The basic properties, temperature distribution and thermal performance have been measured during the summer period. Result shows that the mechanically double-skin system reduces the temperature of double-skin space by 1 °C.