Telhado verde no Rio de Janeiro em clima quente úmido: uma revisão sistemática sobre a vegetação com melhor desempenho

Abstract

Urban densification in Brazilian cities has caused significant environmental impacts, such as the intensification of heat islands and the loss of thermal comfort. In this context, green roofs emerge as a sustainable alternative to mitigate these effects by providing natural thermal insulation, reducing solar radiation absorbed by buildings, and improving air humidity. However, their efficiency depends on the appropriate selection of plant species, especially in hot and humid climates such as Rio de Janeiro, characterized by high solar radiation and heavy rainfall. Therefore, this research was conducted through a systematic literature review, developed according to the PRISMA protocol, which guided the stages of identification, screening, eligibility, and inclusion of studies, and based on the PICO strategy, used to tructure the research question and define selection criteria. The objective was to identify the plant species with the best performance for application on green roofs under these climatic conditions. The results highlighted Sedum and Callisia repens as the most efficient species due to their high resistance, low water demand, and good adaptation to tropical climates. It is concluded that the appropriate selection of vegetation is crucial for the thermal and environmental performance of the system, reinforcing the potential of green roofs as an urban sustainability strategy.