JIS A 4710:2015 PDF Download

The JIS A 4710:2015 standard specifies the test method for determining the thermal resistance of windows and doorsets. It provides guidelines for conducting the test and obtaining accurate results. However, this standard does not cover certain aspects, including edge effects outside the perimeter of the specimen, energy transfer from solar radiation, air leakage through the specimen, and the testing of roof windows and projecting windows. The standard also states that ISO 12567-1:2010 is the corresponding international standard for this standard and provides further information on determining thermal transmittance using the hot-box method for complete windows and doors.