A STUDY ABOUT A THERMAL ENVIRONMENTAL IMPROVEMENT BY SOLAR INSULATING ON THE METAL ROOF IN A HOT AREA : Comparison between aluminum roof and steel roof experiment by the quantity of solar insulating

Aluminum is light and is durable. It cans recycle aluminum again and again. And it is ideal roof materials in consideration for the global environment. Generally, the strength is strong and is light. And it is strong in damage from salt breeze and acid harm and an earthquake, too. However, there are few existing studies that made an effect of the warm temperature environment clear. There is not the study of the experiment in comparison with the metal materials in particular. This study clarifies an effect of the warm temperature environment that solar insulating and the wind velocity give on a metal materials roof. We rode each metal roof on an incline roof. And compared it about warm temperature environment improvement effect and tested it. We investigated it how indoor warm temperature environment could be improved. An aluminum roof is more effective in the result as warm temperature environment than a steel plate roof and a stainless-steel plate roof. But the ventilation layer aluminum roof had no effect than expectaion in spite of the best result because there was little wind. However, we understood that temperature fell as much as the wind velocity