GB/T 39684-2020
ActiveTest method of thermal irregularities for external window opening
外窗热工缺陷现场测试方法
Application Summary AI generated
GB/T 39684-2020 specifies a field test method for detecting thermal irregularities in external windows, such as air leakage or insulation defects, using infrared thermography. It is applied in the construction industry for on-site quality inspection of installed windows in residential and commercial buildings. The standard ensures compliance with energy efficiency requirements by identifying thermal performance issues during building acceptance or retrofit evaluations.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.