The familiar pergola of southern countries is an ancient but highly efficient method of interior temperature regulation. It promotes the formation of an insulating layer of air, thereby preventing an excessive increase of the inside temperature due to direct solar irradiation. This principle also offers several advantages when applied to vertical structures: the insulating cushion of air between vegetation and façade evens out temperature fluctuations and noticeably reduces heating and air-conditioning costs.
A well-designed covering of vegetation is a natural shield against lashing rain or ultraviolet radiation. In addition, the space between the façade and the greenery has a temperature-regulating effect and promotes optimum ventilation as well.
The integration of greened surfaces into contemporary architecture presents novel design opportunities. Planners and architects who have teamed up with greening specialists are already producing outstanding results and are defining new dimensions for “art on buildings.”
Without any risk whatsoever, professionally conceived façade-greening schemes can aesthetically upgrade bleak storage buildings or non-descript concrete apartment blocks. Beneficial side effects include natural air-conditioning, reduction in energy costs and an extension of the useful life of the structure.
A large number of buildings in conurbations offer locations where plants can be grown. Ever-increasing land prices necessitate the erection of high-rise structures. The subminiature gardens on housing estates or balconies benefit materially – the greening of buildings is economical, ecologically favorable and, at the same time, enhance the quality of life.