2. BERLIN
SUMMERS
• Warm and sometimes humid
• average high temperatures of
22–25 °C °F) and lows of 12–
14
WINTERS
• Winters are relatively cold
• average high temperatures of 3 ° and
lows of −2 to 0 °C
SPRING/AUTUM
• Spring and autumn are generally chilly
to mild. ,
Berlin's built-up area creates a microclimate, with heat stored by the city's buildings.
Climate of the city
3. GSW HEADQUATERS, BERLIN
• LOCATION: KOCHSTRASSE 22, BERLIN GERMANY
• CONSTRUCTION YEAR: 1999
• ARCHITECTS: SAUERBRUCH HUTTON
• TYPOLOGY: OFFICE
• FLOORS: 22
• FLOOR AREA: 50000 M2
4. A low-energy building
emerged, which not only
offers an exemplary working
environment in its passive
control of energy consumption,
also aims to improve the
immediate well-being of its
through an architecture in
which the value of sensuous
space is rediscovered.
GSW HEADQUATERS, BERLIN
5. 70% 75%
natural ventilation Daylight
• The building, which glows in different hues of red
and pink.
• Designed by Sauerbruch Hutton
• This passive renovated 22-story office building was
designed to get free cross ventilation and passively
control its energy usage.
• It is said to be the world’s first thermally-flued tall
building
making it more sustainable and economical to run.
GSW HEADQUATERS, BERLIN
8. • Double skin façade with integrated
blinds in cavity
• Provision of air inlets for ventilation
via stack effect
•All panels individually operable for
user comfort and centrally managed for
efficiency
EAST FACADE
GSW HEADQUATERS, BERLIN
11. • Three layer system creating a Solar Flue
• Inner layer of this façade is made of aluminum
double glazed curtain wall, which can be operated
manually or automatically.
•Cantilever bracket with metal-mesh decking
supports the outer single glazed façade, which is
made of laminated glass.
•All panels individually operable for user comfort
and centrally managed for efficiency
• The west façade of the building consists of three
layers that create the solar flue
WEST FACADE
GSW HEADQUATERS, BERLIN
12. The colored panels on this side of the building can be
opened and closed by the occupants in order to let in
or shut out light
prevent overheating.
.
GSW HEADQUATERS, BERLIN
13. Due to the link with the existing building, the High
rise is limited to a floor height of 3.25 m.
•Maximum Floor Plate depth of 11m
•Fully Glazed walls with low cills
•Supplemented with energy efficient Artificial
lighting monitored by automated systems
•Solar control – On west face by vertically
pivoting and sliding panels
•On East Face, by integral Blinds
GSW HEADQUATERS, BERLIN
14. MAXIMISING NATURAL LIGHT
Narrow Floor Plate and Maximum
Glazing lead to well lit interior
conditions.
The facade shading devices also
help cut glare.
GSW HEADQUATERS, BERLIN
15. CREATING THERMAL BUFFER ZONES
The building's east and west
facades are double glass skins,
which act as thermal buffer
zones and which, as a sound
protection layer, keep the road
noise out of the interior rooms.
GSW HEADQUATERS, BERLIN
16. EFFECTIVE SUN PROTECTION
The solar shading system and the solar
flue were designed with the use of the
computational fluid dynamic (CFD)
analyses which allowed for the room
temperatures throughout the year to
be observed.
CFD use numerical analysis to
analyze and solve problems that
involve fluid flow
GSW HEADQUATERS, BERLIN
18. Perforated Aluminum louvers are provided on west
facade, between inner pivoted double glazed
openable window and outer single glazed façade.
These louvers are intended as sun shades as well as
an identity for GSW.
The façade follow a natural colour scheme common
to many Sauerbruch Hutton projects. The Red and
Pink colours are highly recognizable in the Berlin
Skyline
GSW HEADQUATERS, BERLIN
20. • Natural ventilation strategy relies
on cross ventilation at each floor
induced by solar flue in the
western buffer zone.
• This is Enhanced by the Venturi
Element on the roof
NATURAL VENTILATION
GSW HEADQUATERS, BERLIN
21. • Cross ventilation takes place due to
stack effect.
• Provisons have been made to
continue cross ventilation even
across partition walls by providing
large inlets spaces and perforated
screens along with doors.
CROSS VENTILATION
GSW HEADQUATERS, BERLIN
27. • Incorporated for comfort during
seasonal weather extremes
• The system delivers air via the raised
floor.
• This like most other systems is
operable by both the user and the
Building Management System.
• A heat recovery system is also in place
to reduce heat losses during cold
weather
MECHANICAL VENTILATION
GSW HEADQUATERS, BERLIN
29. The Winged roof over the Western Flue acts as a
Venturi element and enhances air circulation
through Bernoulli's effect.
It also shields the Flue from Rainwater
VENTURI ELEMENT
GSW HEADQUATERS, BERLIN