2011.4-2012.3 Yearbook of NILIM
Research Summary

Building Department

Reference Number	Y110502
Title	Research of rain water infiltration factor and prevention countermeasure in small-scale building
Start-End Date	2009.4-2012.3
Division	Structural Standard Division, Housing Stock Division, Housing Department
Author	Research Coordinator for Advanced Building Technology, Akiyoshi MUKAI Head, Tatsuya AZUHATA Senior Researcher, Masashi MIYAMURA Senior Researcher, Kazuo NISHIDA
Summary	We carried out a construction situation investigation and a waterproofing performance test to investigate the factor of the rain leak of the timber-framed house. It became clear by the result of the survey that there is much unsuitable construction. Moreover, the watering experiment proved that unsuitable construction causes leakage of water.