Avaliação do conforto térmico entre os sistemas de telhado verde, ecológico e convencional

Abstract

“Sustainable Development” is understood as the ability to meet the needs of the current generation, without compromising the ability of the future generations to meet their needs. Following this line of thought, reducing energy consumption and seeking to use materials that cause less damage to the environment are important points to be followed. Currently, one of the main increases in energy consumption of buildings is the use of equipment to control internal temperature, such as air conditioners and fans. Parallel to this, there is nowadays a consensus in the scientific community that the roof structure has a relevant contribution to the increase in the internal temperature of a building. Based on what was exposed, this project aims to test the thermal efficiency of three different types of roofing for the climate of the city of Alegrete/RS. To analyze the thermal response of the roofs, three prototypes were assembled (called testcells), in which two received tiles with ecological characteristics, and the other was made with a tile conventionally used in Brazil. In order to compare the efficiency between the coverings, the monitoring of the internal temperature of the test-cells was carried out with the aid of specific equipment. To aid in data analysis, the results were validated with calculations related to thermal transmittance following the ABNT NBR 15220 standard. It was concluded that the green roof structure met the current normative standards and presented the best performance in terms of thermal comfort among the analyzed roofs.