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Temperature distribution data are presented for the warm-side surface of three different window specimens. The specimens were placed between warm and cold environmental chambers that were operated in steady state at two different standard design conditions for winter heating. The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) temperature conditions were 21.1°C (70°F) and -17.8°C (0°F) on the warm and cold sides, respectively. The International Standards Organization (ISO) temperature conditions were 20.0°C (68.0°F) and 0.0°C (32.0°F) on the warm and cold sides, respectively. Surface temperature maps were compiled using an infrared thermographic system with an external referencing technique, a traversing point infrared thermometer, and thermocouples. The infrared techniques allow detailed, nonintrusive mapping of surface temperatures. Surface temperature data are plotted for the vertical distribution along the centerline of the window specimen. This study was conducted to improve and check the accuracy of computer simulations for predicting the condensation resistance of window products. Data collected for a calibrated transfer standard showed that convective effects outside the window gap are important for predicting surface temperatures.

Units: Dual