EXPERIMENTAL EVALUATION OF THE THERMAL BEHAVIOR OF ROOFS: A COMPARISON BETWEEN GREEN AND CONVENTIONAL ROOFS
Keywords:
Green roof, Thermal behavior, Thermal performance, Urban sustainabilityAbstract
Urban densification and the consequent reduction of green areas intensify environmental variables, especially with regard to thermal conditions and air quality. Given this scenario, sustainable solutions, such as the implementation of green roofs, are presented as viable alternatives to mitigate these impacts. In this context, the present experiment statistically analyzed the effectiveness of green roofs, considering two types of roofing – ceramic tile and fiber cement tile – compared to conventional roofs. The research has an applied character and experimental approach, combining qualitative and quantitative methods of descriptive and explanatory nature, with the objective of evaluating the thermal performance of green roofs from the analysis of empirical data and literature review. The results showed that the green roofs presented a superior performance in all the variables analyzed, except for the rate of water evaporation in the models with ceramic tiles, which registered a higher water loss, possibly due to the thermal and hygroscopic properties of the material. Thus, this study contributes to reinforce the potential of green roof technologies as sustainable solutions for the mitigation of environmental impacts, notably with regard to the reduction of thermal discomfort and the adverse effects of accelerated urbanization. In addition, the findings highlight the relevance of incorporating mitigating measures, such as green roofs, in the adaptation of cities to global climate change.
