Abstract
In this study, we have carried out experiments using two small container houses. The roof of the house was wiped with a double-layer structure for water contain concrete boad. And, we analyzed and measured the effect of reducing the power consumption of air conditioning and roof surface temperature. From the results, we verified the effectiveness of the boad as improved indoor hot environments. Measurements from September to October 2012, we have confirmed that the effect of reducing the power consumption of the air conditioning and the effect of reducing the surface temperature of the roof is clear. Setting the water contain boad covered with double-layered on roof surface, we were able to reduce the surface temperature during the day of sunny days in summer(at 9-19h), 16.7°C on average, 28.1°C atmost. When laid in a single-layer, the reduction of surface temperature was 10.3°C, 18.7°C respectively. The room temperature was reduced 1.9°C on average, 3.1°C at most during the day time. When laid in a single-layer, the reduction of surface temperature was 1.2°C, 2.1°C respectively. Comparing the energy consumption of air conditioning, 77.0% reduction in power consumption by double-layer and 28.7% by single-layer.
