Kaiser Wilhelm Memorial Church - Berlin, Germany

Kärcher returns to Berlin for city's fourth cleaning project

继勃兰登堡门、玛丽安教堂和弗里德里希施施塔特帕斯特教堂之后，凯撒威廉纪念教堂成为第四座纪念碑，将于2012年春季在柏林由卡尔彻清理。在杜斯曼服务设施管理公司的合作下，卡彻致力于修复纪念碑。在过去的50年里，在纪念碑的内壁上出现了黑烟沉积物，这严重影响了光线的入射和一度光亮的混凝土表面的反射。

Cleaning over 16,000 window elements

在为期三周的文化赞助项目中，超过16000个窗户构件被轻轻地去除了一层污垢。

The extensive cleaning work was carried out in the area between the outer and inner walls of the church, which is not open to visitors. As it was impossible to erect scaffolding in the corridor of the octagonal building, which measured just 2.4 m across, industrial climbers abseiled down from the ceiling to clean off the black layer of dirt covering the glass mosaic elements and concrete frames. Hot water high-pressure cleaners with a water temperature of 80°C, 100 bar pressure and a flow rate of 700 l/h were used. The water flowing down was collected in a specially designed trough made of plastic sheeting and removed using Kärcher wet and dry vacuum cleaners.

In the interior of the church, Dussmann Service employees vacuumed the concrete honeycombs holding the glass mosaic elements from elevated work platforms. The facility management company cleaned the glass manually using sponge and leather, without any chemicals. The deposits on the ceramic-tiled floor of the church were removed gently and evenly using a hot water high-pressure cleaner and a Kärcher surface cleaner; Again the dirty water was pumped away simultaneously using a wet and dry vacuum cleaner.

The sanitary facilities and other rooms in the basement of the church were given a deep clean. Part of the outer facade of the Berlin landmark, the lower row of windowless concrete mosaics, was also cleaned by Kärcher and Dussmann Service up to a height of three metres using hot water high-pressure cleaners, removing stubborn dirt like pigeon droppings and emissions residues.

Cleaning as a requirement for new lighting concept

The cleaning was required for a new lighting concept which will considerably reduce the church's power consumption and energy costs."Since the cleaning project was undertaken, we very rarely need additional electrical lighting during the day; the blue glass walls gleam with an intensity that has not been seen for some time"马丁·杰默牧师说。

Long-term cleaning sponsorship undertaken

Beyond the cleaning project, Kärcher and Dussmann Service wanted to continue their involvement with the cultural monument into the future. At the official opening of the cleaned building, the two companies presented Reverend Martin Germer with a specially developed plan for professional deep cleaning and maintenance cleaning. This included a scrubber drier donated by Kärcher, which will be used in future to clean the ceramic-tiled floor. Dussmann Service presented the church with cleaning agents, a matching dosing system and a fully equipped cleaning cart.