Experimental Research on Thermal Insulation and Noise Absorption of Ecological Module Materials

This research analyzed thermal insulation and noise reduction of an ecological module material by experimental methods. Ecological module materials were placed on the roof without insulation to measure its effect of thermal insulation in summer. Under the indoor air-conditioned environment, it can reduce 53% of heat transfer on roof and lower the electricity consumption of air-conditioning by 0.08 kWh·d⁻¹·m⁻². Meanwhile, its equivalent thermal resistance can be up to 0.53 m².K·W^-1. In the laboratory, reverberation chamber method was adopted to measure the acoustical absorption coefficient of this ecological module material. It showed that the coefficient can reach 0.8 during the range of medium frequency and the average coefficient was 0.52.