| Summary |
This study is an attempt to reveal the characteristics of the summer radiant environment in a membrane structure, semi-enclosure space, by field survey on short wavelength radiation (range: 0.3～3μm) and long wavelength radiation(range: around 10μm). The following findings were obtained: ①The Mean Radiant Temperature at the height of 1.2 m in the central part was higher than the air temperature of the space by 4℃ at noon, due to increased surface temperature on membrane (solar reflectance: 74%, solar transmittance: 12%, solar absorptivity; 14%) and the wooden floor by transmission solar radiation, interflection, and direct solar radiation; ②The Mean Radiant Temperature was higher than the air temperature of the space by 2℃ before dawn because of the heat storage of wooden floor and walls of building where radiation cooling to the atmosphere was obstructed by the membrane in the night.
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