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The service life of ventilation facades designed around and in practice nobody has been able to verify this figure. In Europe, the ventilation facades began to appear en masse only in the 70s of the last century. The oldest of them have not stood for 50 years. A first ventilating facade was built in 1931 in New York the famous skyscraper Empire State Building (the facade is lined with pink Indian limestone, and the windows are framed with aluminum in it cassettes). The facade was never repaired at the time of construction, and it is too early "to retire." So hinged ventilation facades - not only durable, but also practical, since the need of minimum maintenance, which is the cleansing of the surface from contamination. In the West, such services are provided by many companies, and we can already find a company for the job. MARKET AND MATERIALS
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