Tendencias en el diseño, construcción y operación de techos verdes para el mejoramiento de la calidad del agua lluvia. Estado del arte.

Jair Andrés Morales Mojica, Maira Alejandra Cristancho Santos, Gustavo Andrés Baquero Rodríguez

Resumen

Los techos verdes se presentan como tecnología de mejoramiento de calidad de agua. En este artículo se identifican tendencias en las condiciones de diseño, construcción y operación de techos verdes cuyo objetivo es mejorar la calidad del agua lluvia. Se realizó una revisión bibliográfica consultando en las bases de datos Scopus, Science Direct y Redalyc, un total de 45 artículos científicos originales. A partir de la información recolectada se identificaron tendencias en incrementos y reducciones en las concentraciones de diferentes parámetros de calidad de agua, temporadas del año con los mejores resultados, tipos de techos verdes más usados, clases de sustrato y componentes más comunes, tendencias de construcción (dimensiones, inclinación, materiales y capas) y vegetación más usada. Los resultados muestran que los techos verdes tienen la capacidad de neutralizar la lluvia ácida. Debido a sus características de construcción, funcionalidad y bajo costo, los techos de tipo extensivo son los más usados.


Palabras clave

techo verde; tendencia; escorrentía; calidad del agua; sustrato.

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