|Budget Amount *help
¥40,690,000 (Direct Cost: ¥31,300,000、Indirect Cost: ¥9,390,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2012: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2011: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
Fiscal Year 2010: ¥23,660,000 (Direct Cost: ¥18,200,000、Indirect Cost: ¥5,460,000)
In order to make a guide for controlling air quality in concealed spaces to keep indoor air quality better, following studies were carried out on the basis of former studies on characteristics of airflow in leakage network of detached houses and their influences upon indoor air quality. Characteristics on thermal conditions and movement of molds were investigated using sliced structure of common houses. Measurement methods of air quality in concealed spaces were investigated. Methods to control air quality in concealed spaces were investigated using simulation programs. These studies showed that not only chemical compound but also molds moves on leakage network of house by pressures of mechanical ventilation system. Basic condition of air quality in concealed spaces (crawl space, wall cavity, etc.) to keep indoor air quality was described.