METHOD FOR VERIFYING AIRTIGHTNESS OF FRAMEWORK UNDER CONSTRUCTION

PROBLEM TO BE SOLVED: To provide a method for measuring airtightness of a building under construction, capable of confirming airtightness of a framework after completion of airtightness construction with high simplification and desired precision. SOLUTION: The method for verifying airtightness of a building under construction, capable of verifying airtightness of a framework by generating a pressure difference at an inside and an outside of the building under construction completed up to airtightness construction in which an airtightness layer is formed in a framework after completion of framework construction in which framework is formed by erecting an upper structure on a foundation structure and installing construction materials such as outer walls and roofs on the upper structure to form the framework, includes an airtightness verification process (S3) for generating a differential pressure inside and outside the framework by operating forced exhaust equipment installed on the framework with airtightness construction completed, thus verifying an airtightness state of the framework. As the forced exhaust equipment, there can be utilized a forced exhaust system installed to improve discharge of oil-contaminated water of the construction materials by introducing outside air into an internal space of the framework. COPYRIGHT: (C)2010,JPO&INPIT