This research presents performance evaluation of moss rooftop greening prototype in a confined space using an experimental chamber. The chamber was utilized to simulate performance of prototype in reducing temperature inside a building. Two simulated environments were set as low and high-temperature treatment. Moss plant (
Sphagnum sp.) was used. Performance was evaluated by using
Lab color, photosynthesis and CO
2 absorption rate. The results concluded that prototype could reduce temperature inside confined space from 1.5 to 2.9 °C.
L and
b parameters were applicable to detect the color patterns. The high-temperature had no effect on while low-temperature treatment decreased photosynthetic and CO
2 absorption rate. These results concluded that the prototype could be applied as a rooftop greening material in tropical environment of Yogyakarta, Indonesia.
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