Berlin

 
Brandenburg Gate
Brandenburg Gate– Berlin, Germany

Built: 1788–1791

Builder: Carl Gotthard Langhans

Height: 26 m

Width: 65,5m

Depth: 11 m

Building Material: Sandstone

Type of Soiling: regular surface dirt, Graffiti, Mildew, Deposite

Cleaning Equipment: HDS 895, Columns: hot Water, 50 bar or 725 psi pressure, 75°C

Period of Cleaning: May–July/August 1990
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Brandenburg Gate, Berlin