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      Desempenho térmico de envoltórias vegetadas em edificações no sudeste brasileiro Translated title: Thermal performance of green envelopes in buildings in the Brazilian southeast

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          Abstract

          Resumo A avaliação do desempenho térmico de edificações que utilizam coberturas verdes, paredes vivas ou paredes verdes como elemento de proteção da envoltória é um campo de grande importância para os profissionais de arquitetura e engenharia, por minimizar o ganho de calor, proporcionar melhor condição térmica e aprimorar seu desempenho. Este trabalho apresenta três diferentes estudos de desempenho térmico com revestimentos vegetais: 1) um estudo de caso com cobertura verde, 2) um estudo experimental com parede viva, e 3) um estudo de caso com parede verde, todos com medições comparativas e simultâneas entre superfícies expostas e protegidas pelo verde. Os parâmetros medidos foram temperatura, umidade relativa, velocidade do ar, temperatura radiante média e temperatura das superfícies internas e externas das envoltórias. Tais análises levaram à conclusão de que o uso da vegetação como elemento de proteção em coberturas e fachadas atua positivamente sobre os fluxos de calor na envoltória, representando uma importante ferramenta para o controle térmico passivo de altas temperaturas no interior das edificações.

          Translated abstract

          Abstract The evaluation of the thermal performance of buildings using green roofs, living walls or green walls as envelope protection elements is a very important tool for architects and engineers to minimize heat gain, provide better thermal condition and improve thermal performance. This paper presents three different studies of thermal performance of buildings with green cover: 1) a case study of a green roof, 2) an experimental study of a living wall, and 3) a case study of a green wall; all of which include comparative and concurrent measurements between exposed surfaces and surfaces protected by vegetation. The parameters measured were air temperature, relative humidity, air speed and mean radiant temperature, as well as the inner and outer temperature of the walls. Those analyses led to the conclusion that the use of vegetation as a protection element on roofs and façades acts positively on the heat flows in the envelope, representing an important tool for passive thermal control of high temperatures inside the buildings.

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          Most cited references15

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          Institutionalizing urban forestry as a “biotechnology” to improve environmental quality

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            Standard 55 Thermal Environmental Conditions For Human Occupancy

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              Techos verdes: Planificación, ejecución, consejos prácticos

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                ac
                Ambiente Construído
                Ambient. constr.
                Associação Nacional de Tecnologia do Ambiente Construído - ANTAC (Porto Alegre )
                1678-8621
                January 2016
                : 16
                : 1
                : 71-81
                Affiliations
                [1 ] Universidade Estadual de Campinas Brazil
                Article
                S1678-86212016000100071
                10.1590/s1678-86212016000100061
                0983225e-3840-4487-a86c-bd8ccf3a18f0

                http://creativecommons.org/licenses/by/4.0/

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                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1678-8621&lng=en
                Categories
                ARCHITECTURE
                CONSTRUCTION & BUILDING TECHNOLOGY
                ENGINEERING, CIVIL

                General architecture,Civil engineering
                Thermal performance,Vegetation,Green roof,Living wall,Green wall,Conforto térmico,Vegetação,Cobertura verde,Parede viva,Parede verde

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