Eficiência de espécies vegetais sob a retenção de água em telhados verdes no sertão paraibano.

Abstract

With the uncontrolled growth of the population in urban centers, and the negative impacts generated on the environment as a result, it leads us to think of solutions that will reduce these impacts. The green roof with its benefits contributes positively in reducing them. In addition to improving the thermoacoustic insulation, it contributes to the control of rainwater. Therefore, a simulation of water dynamics on green roofs was carried out, with different intensities of precipitation, in comparison with that of fiber cement tiles, in order to verify the system's performance in reducing runoff. The results indicate an efficiency in the ability to delay the flow through the green roof compared to the fiber cement roof. Finally, this only reinforces the importance of using green roofs in urban centers, because in addition to improving the thermoacoustic insulation, it improves surface runoff, reducing the impacts caused by rain.