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Kalzip ® Report
Congress Centre, Valencia, Spain

A congress
centre with
international
appeal

Corus Building Systems
The roof on the south side extends beyond the building
to provide a striking canopied entrance area,
protecting visitors from sun and rain alike.
Valencia - a thriving centre
Founded by the Romans in 138 BC,
Valencia was one of Spain’s principal
trade and cultural centres during
Roman and medieval times. Today,
it follows only Madrid and Barcelona
as one of the most populated and
important cities in Spain. The city is
still growing and several years ago
it determined to establish an internat-
ional reputation as a venue for conferences
and exhibitions. Only one
element was missing - a modern
congress centre. London based
architects, Foster and Partners,
were awarded the contract for the
congress centre which was to be the
focal point of a new urban development
area near Avenida Pio XII.
Above: The south side
Right: The east side
Far right: The north side
With its powerful, sweeping roof the
centre indeed dominates not just
the immediate area but also the
entire north west region of the city
- immediately visible to travellers
entering Valencia from the motorway
network. Designed to be both archi-
tecturally elegant and also cost effec-
tive, the congress centre is rapidly
becoming one of the most popular
conference venues in Europe and a
worthy symbol of this vibrant, sunblessed
city.
Distinct architectural style
In contrast to many other buildings
of its kind, which are deliberately
designed to exclude daylight and the
natural surroundings, the congress
centre in Valencia relates closely
to the local climate and draws its
inspiration from light and shadow,
from water and from the greenery
of the city. With the exception of the
auditoria, the transparent structure
of the facade allows the building
to integrate easily with its
surroundings. Daylight is drawn
in and then filtered and shaped
so that it either steals softly into
the building or penetrates it with
fine rays of light. From the north, the
‘bow’ shaped outline of the building
and the curved sweep of the 180 m
long roof can be fully appreciated.
From the east, the building’s open
aspect is revealed, overlooking the
landscaped surroundings.
Corus Bausysteme 3

Kalzip ® Report
The auditoria can seat 1463, 468 and 250 people
respectively. The smallest can be divided into two
rooms to accommodate seminar groups in a more
intimate area. All rooms have superb acoustics and
provide all delegates with excellent views of the
proceedings. Energy efficient air conditioning
systems are built into the base of the seats and an
advanced digital communications network runs
throughout the building.
4 Corus Bausysteme

Functionality of structure
The congress centre is built as a
tapered oval rising to a point at
either end, creating two bow shaped
facades of unequal length - the open
eastern aspect being the longest.
This geometry allows the auditoria
and seminar rooms to ‘fan out’ from
the narrow bend of the western side
that accommodates the building
supply and service areas. The open
public area of the building runs
along the eastern facade as a broad,
linear entrance hall providing access
to the conference auditoria.
Above: The large auditorium
Right: Skylights illuminate
the narrow stairways
Far right: Natural light features
on the east side
Natural influences
The expansive entrance hall, which
rises up to roof level, looks out on
to a park with tree shaded seating
areas. A stream, interrupted by
foot-bridges, flows right along the
200 m eastern facade. From this,
softly curved asymmetrical ponds
spread out to provide an expanse
of water towards the south from
which direction air, cooled as it
passes over the water, is fed into
the entrance hall and serves to
reduce the requirement for air
conditioning.
The water also reflects sunlight
into the building with the effect
of gently softening the light and
contributing to a pleasing and
relaxed atmosphere.
The congress centre has three
main auditoria (which cannot
be interconnected) which are all
equipped with cubicles for interpreters,
nine smaller seminar
rooms and also exhibition, sales
and administrative areas.
Corus Bausysteme 5

Kalzip ® Report
In architectural harmony.
Kalzip ® curves achieve a superb geometry.
Specially adapted ‘crowns’ accommodate
skylights and RWA systems within the roof
structure.
Cost optimised construction
The building has been designed as a reinforced concrete
structure with the dimension and shape of the roof being
the dominant architectural feature. A total of fourteen
reinforced concrete sections span the building and
support the roof at its various heights.
The transverse girders rest on longitudinal girders
which in turn transfer the load of the roof on to circular
supporting columns. Two levels of concrete sections
are suspended between the transverse girders and
function as reinforcements as well as forming the upper
and lower edges of the roof. From a structural point of
view therefore, the roof comprises two layers - the outer
metal surface is laid above the upper concrete shell and
the lower layer then forms the connection to the ceiling.
This eliminated the need for an additional suspended
ceiling which would have added substantial cost to the
project.
Kalzip’s flexibility meets the design
The roof has an overall surface area of 8,000 square
metres and the Kalzip ® aluminium standing seam system
was the architect’s preferred choice. The creative
potential of the flexible Kalzip profiled sheets allowed
the system to adapt easily to the unusual geometry.
In addition, installation was very quick with the Kalzip ®
sheets being roll-formed on-site and transferred directly
onto the roof.

Diagram No. 1:
Detailed cross section of the ceiling edges
Diagram No. 2:
Detailed cross section of the roof
Diagram No. 3:
Detailed cross section of the skylight
1 - edging frame
2 - steel frame
3 - Kalzip ®
4 - Clip L50 TK
Diagram No. 4:
View of the roof
The sheets are fixed into position using special clips
which transfer forces into the supporting structure and
also allow for natural thermal movement of the sheets.
The clips sit within the raised seam at each side of the
sheet and once in position, the interlocking seams are
closed using a ‘zip’ machine to give a completely
weathertight roof with no penetrative fixing holes.
Openings in the roof for skylights and RWA systems
are provided by welded upstands or ‘crowns’ - welding
being preferred to rivets and silicon as it can more
Far left: View of the roof, skylights
and RWA systems
Right: The underside of the roof
No. 1
No. 2
No. 3
No. 4
240
40
240
Kalzip ® Report
2 1 4 3
easily accommodate the high degree of thermal
expansion predicted for the roof - 1 mm for every
metre across the span of the roof.
The congress centre was Sir Norman Foster’s first
Kalzip ® project in Spain. The system was chosen for
reasons of economy and for its well-proven technical
capabilities. The unusual roof structure and its
sweeping domination of the whole architectural impact
of the building allows us to acclaim this as a most
outstanding Kalzip ® project.
Corus Bausysteme 7

www.kalzip.com
The information and product descriptions
contained in this publication are provided
to the best of our knowledge and based on
our experience and studies. They do not
refer to any specific application and cannot
give rise to any claims for compensation.
We reserve the right to make any changes
to the construction or product range which
seem technically sensible in view of our
high demands for quality and progress.
We have endeavoured to reproduce colours
accurately. However, colour deviations
constraints, whilst regrettable, cannot be
excluded.
Copyright 2001
Corus Bausysteme GmbH
Corus Bausysteme GmbH
August-Horch-Str. 20-22
D-56070 Koblenz
P.O. Box 10 03 16
D-56033 Koblenz
T +49 (0) 261/891-0
F +49 (0) 261/8 20 38
kalzip@corusgroup.com
English
Europe:
The Netherlands
HAFKON BV
Postbus 46
NL-3140 AA Maassluis
The Netherlands
T +31 (0) 1059 15300
F +31 (0) 1059 15125
info@hafkon.nl
Belgium
Corus Building Systems NV
A. Stocletlaan 87
B-2570 Duffel
Belgium
T +32 (0) 15 30 29 21
F +32 (0) 15 30 29 20
cbsbe@corusgroup.com
Austria
Robert Pfisterer
Bautechnische Beratung
Keplerstraße 16
A-4222 Luftenberg
Austria
T +43 (0) 7237 5123
F +43 (0) 7237 2123
r.pfisterer@corusgroup.com
United Kingdom and Ireland
Corus Building Systems
Haydock Lane, Haydock
GB-St.Helens/Merseyside
WA11 9TY
United Kingdom
T +44 (0) 19 42 29 55 00
F +44 (0) 19 42 27 21 36
kalzip-uk@corusgroup.com
France
Corus Building Systems SAS
8, Avenue Desclers
B.P. 20
F-77515 Faremoutiers
France
T +33 (0) 1 64 65 30 56
F +33 (0) 1 64 03 98 55
cbsfr@corusgroup.com
Spain
Corus Metal Ibérica S.A.
División Sistema Kalzip
Avda. de la Plata, 67-31a
E-46006 Valencia · Spain
T +34 (9) 6 374 56 85
F +34 (9) 6 374 04 33
kalzipcorus@hotmail.com
Portugal
Corus Sistemas Construtivos
Av. dos Combatentes 76
Abrunheira
P-2710-034 Sintra · Portugal
T +351 219 158 800
F +351 219 158 809
chaperfil@mail.telepac.pt
Denmark
A.E. Stålmontage a/s
P.O. Box 70
Hagensvej 54
DK-9530 Støvring
Denmark
T +45-98 37 32 88
F +45-98 37 32 79
ae@kal-zip.dk
Switzerland
Büro Dach & Wand,
Jürg Senteler
P.O. Box 247
CH-7302 Landquart
Switzerland
T +41 (0) 8 13 22 38 38
F +41 (0) 8 13 22 38 39
kalzip@bluewin.ch
Cyprus
Phanos N. Epiphaniou Ltd.
21 Markou Drakou Avenue
Pallouriotissa
P.O. Box 9078
CY-1621 Nicosia · Cyprus
T +357 (0) 2 438 991
F +357 (0) 2 431 534
phanos@spidernet.com.cy
Greece
Phanos N. Epiphaniou Ltd.
82 Grammou Str.
GR-18345 Moschato
Greece
T +301 9 405 941
F +301 9 412 465
fanos@otenet.gr
Overseas: Middle East
Dubai
Corus Building Systems
P.O. Box 9217
UAE-Dubai
United Arab Emirates
T +971 4 3388586
F +971 4 3389970
azad@corusmiddleeast.com
Kuwait
Ali Alghanim & Sons
Trading & Contracting
Group Co. W.L.L.
P.O. Box 21540
KT-Safat 13076 · Kuwait
T +965 4 822190
F +965 4 821669
Overseas: Far East
Singapore
Corus Building Systems Pte. Ltd.
41 Gul Circle · Singapore 629576
T +65 768 9081
F +65 898 9374
admin_hbs@corus.com.sg
www.corus.com.sg
China
Corus Building Systems
Guangzhou Representative Office
Suite 1208, West Tower
Guangzhou International
Commercial Centre
Tian He Ti Yu Dong Road
Guangzhou
P.R. China 510620
T +8620 3887 0190 / 0191
F +8620 3887 0265
Hong Kong
Corus Building Systems
6/F Jardine Engineering House
260 Kings Road
North Point · Hong Kong
T +852 2807 0196
F +852 2234 6739
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