Indoor green wall in the electricity company

Creation of new green areas

1. They contribute to the insertion of vegetation in the urban context, which is scarce in dense urban areas, promoting cities sustainability based on environmental, socio-economic and aesthetical benefits. 2. The insertion of green walls contributes to increasing urban biodiversity without any ground-level occupation. 3. These systems have the ability to improve air quality absorbing CO2 and heavy metals and retaining dust particles, while the vegetation releases oxygen to maintain its vital functions. 4.They help to mitigate the greenhouse effect, contributing to an increase in air humidity and to decrease the air temperature. 5. These systems enhance, aesthetically and visually, the spaces. 6. Green walls add value not only to the buildings in which are integrated but also the surrounding area, having a therapeutic effect, due to the presence of vegetation, introducing nature into the daily life of citizens (2)

Most natural vertical surfaces on which plants are found are soilless, creating well-drained growing locations. Many plants thrive in such conditions — on rocks and cliff faces, or branches and trunks of trees. These plants are called lithophytes, from the Greek lithos (‘stone') and phyton ('plant'), and epiphytes (epi is Greek for 'on'). VGD's felt-based technique imitates these conditions and allows a large variety of plants to naturally grow on vertical surfaces. Indoor climates typically include a temperature of around 20° C and low light levels. Similar conditions can be found under the tropical forest canopy where little light filters through. Many plants have adapted to such environments by growing large leaves in order to absorb as much of the small amount of light that reaches them as possible. They tend to have quite a modest flowering, although there are exceptions that flower freely all year long in low light levels (1)

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