Abstract
In this study, the experiment that covered the large-scale folded-plate roof of the factory building was done by using a water contain concrete board for the construction use. In the factory building, the measurement of the heat inflow on the roof side and the indoor temperature has done and analyse the mitigating effect. The analytical result during the July-September of summer of 2011 is as follows. The effect of the decrease of the roof surface temperature appeared remarkably, and became the temperatures fluctuate of 21.8°C by the mean value by using the water contain concrete board compared with the folded-plate roof area assumed to be a comparison in daytime of a fine day in summer. The ceiling side temperature decreases at 12.6°C in average because it compares the water contain concrete board district and the comparison district, and the room temperature has decreased at 5.7°C in average. As a result, it succeeded in the prevention of the stop accident of the compressor to stay up until the previous year. The room temperature has decreased a little by the insolation cover in winter. However, the value of the coefficient of heat transmission shows that the effect of heat insulation is possessed if the board dried. The industrial method that set up the water contain concrete board on the roof was judged that the possibility of practical use was high from these results.
