Even the employees’ entrance area must sparkle: Danilo Schulze
The Berlin Cathedral is the largest Protestant Church in Germany
and the largest church in Berlin with about 1,400 seats. It was
between 1894 and 1905 according to the plans from
Julius Raschdorff. The total height of the listed building is 98 meters;
its surface area is approximately 73 times 93 square meters.
The cupola has a height of approximately 75 meters and a diameter
of 33 meters.
In addition to church services, daily tours are held as well as over
100 concerts and other events per year. For tours, the Berlin
is open Monday to Saturday in the summer season (April
1 to September 30) from 9:00 a.m. to 8:00 p.m. and on Sundays and
public holidays from 12:00 a.m. to 8:00 p.m.
walkways, the imperial staircase including its hall, boxes as well
as event rooms, and the Sophie-Charlotte and Henriette-Luise
halls. The 32 offices have an area of approximately 1,192 square
meters and are cleaned over a five-day period each week.
Many individual surfaces and different building parts
Among the features of this exceptional task is that the considerable
overall cleaning area consists of many small, often winding
and uneven individual surfaces, which are located on different
from the Hohenzollern crypt up to the dome. The building,
which is comprised of numerous elements, is immense and its
circumstances are in some cases fairly complicated.
“It is not easy to find your way around here if you don’t know
what you’re doing,” says Viola Gilgen, operational manager at 3B
Deutschland GmbH. New employees occasionally
have their problems. Offices are located in the four towers on the
side of the central dome. Nearly 300 steps must be climbed to
reach the cupola – and with all cleaning utensils.
In addition to the dimensions, the special, sometimes very valuable
materials – for example, limestone and wood – must be taken
into account. Larger technological equipment can only be partially
used; most everything must be cleaned by hand. This is especially
Silvana Jezdic vacuuming the carpet of the sermon church. A lot of the
special care tasks have to be carried out by hand.
true for the many different floor coverings that must be dealt with
during maintenance cleaning. These include parquet flooring and
carpet in the boxes, event areas and offices, stone and granite slabs
in the exterior areas, Solnhofen limestone slabs in the church and
Hohenzollern crypt, linoleum in the stairwells as well as tiles and
stone in the toilets. The surfaces amount to around 100 square
meters of tiles in the toilets and kitchens, 3,500 square meters
of limestone, 1,600 square meters of granite in the exterior area,
1,500 square meters of parquet, 800 square meters of linoleum
and 1,000 square meters of carpet.
To clean all of this and keep it clean, the surfaces are mopped
by hand in either one- or two-stage processes. Larger areas are
accordingly with scrubber dryer machines, parquet
mopped with gauze or oilskin, carpets vacuumed and
smooth surfaces polished. In addition to automatic scrubber dryers,
polishing machines and battery-operated backpack vacuums
used. The cleaning chemicals used by 3B employees in this object
Danilo Schulze repolishing the Solnhofen limestone slabs in the sermon
GLOBAL CLEANING | ISSUE 2017 55