Green roofs and façades agriculture (GRF) represents a sustainable technology for improving the energy efficiency of buildings, specifically to improve the energy consumption for conditioning in summer and the thermal insulation in winter. Worldwide, it is reported a surface of 234 ha of GRF, with the Germany leader in Europe (229194 m2), followed from the North America (1272940 m2) and the city of Singapore (127656 m2). Furthermore, GRF contribute to mitigate impacts in cities, e.g.: the storm water runoff, the “heat island phenomenon”, the CO2 emissions and the unaesthetic vision of strongly urbanized areas. Recently, a number of municipalities started to adopt regulations and constructive benefits for renovated and new buildings which incorporate GRF. This paper deals with a general description of the GRF plant technology, the technical characteristics, the existing certification framework, the plants species and the hydroponics typologies. In addition, it is reported the description of a mathematical model to quantify heat fluxes and energy balance of the GRF associated with buildings.
GREEN ROOFS AND FAÇADES AGRICULTURE (GRF) FOR SUPPORTING BUILDING ENERGY EFFICIENCY
BIBBIANI, CARLO;
2011-01-01
Abstract
Green roofs and façades agriculture (GRF) represents a sustainable technology for improving the energy efficiency of buildings, specifically to improve the energy consumption for conditioning in summer and the thermal insulation in winter. Worldwide, it is reported a surface of 234 ha of GRF, with the Germany leader in Europe (229194 m2), followed from the North America (1272940 m2) and the city of Singapore (127656 m2). Furthermore, GRF contribute to mitigate impacts in cities, e.g.: the storm water runoff, the “heat island phenomenon”, the CO2 emissions and the unaesthetic vision of strongly urbanized areas. Recently, a number of municipalities started to adopt regulations and constructive benefits for renovated and new buildings which incorporate GRF. This paper deals with a general description of the GRF plant technology, the technical characteristics, the existing certification framework, the plants species and the hydroponics typologies. In addition, it is reported the description of a mathematical model to quantify heat fluxes and energy balance of the GRF associated with buildings.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
