Vertical Greenery as Natural Tool for Improving Energy Efficiency of Buildings

The European Construction Sector Observatory outlined that green building envelopes as roofs and walls contribute to the reduction of energy demand CO2 emissions due air conditioning in summer periods, mitigation heat islands urban areas. For this reason, understanding about contribution greening infrastructures on buildings sustainable use for is urgent. This paper focuses analysis a vertical surface provided with Parthenocissus quinquefolia (L.) Planch., winter deciduous species, cover building, assessing solar radiation absorbed by façade and, consequently, flux (HF) transmitted into internal ambient. research shows that, July, temperatures (STs) vegetated were up 13 °C lower than unvegetated (bare) façade. Under climate environmental conditions wall located at ENEA Casaccia Research Center, saving 2.22 1.94 kWhe/m2, respectively 2019 2020, cooling electricity load, was achieved. These reductions also allowed 985 862 g CO2/m2 emissions, respectively, 2020. Ultimately, factor named Kv* elaborated evaluate influence vegetation STs well HFs indoor ambient adapted case detached cover. Measurements lasting three years showed suitability index defining shading capacity surfaces, which can be used predict thermal gains effects endowed system.