The daily average cooling efficiencies were 81.2, 83.1 and 88.4% for combined system; and 63.6, 72.17 and 80.6% for fan-pad system at 1.01, 0.85 and 0.45 m/s pad face air velocity, respectively with 15 cm Se’d pad thickness. According to these results, the efficiency of the combined system is better than that of the fan-pad system. The cladding materials such as roof water flow may be used to diffuse direct insolation to prevent the plants from direct sun burning and to enhance photosynthesis.