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University of Turin | 3 Slip House, London | 6 Lavaflow 5, Hawaii | 10 Ellis-Miller House | 12
International Magazine
ISSN 1363-0148
www.hdgmagazine.co.uk
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EditorialLack of housing has been a
problem that has plagued us
for over 40 years. We have
not really got our policies
right since the war and there
is a whole raft of reasons
why we are in the present
predicament. What is needed
is a fresh start, a clean slate
and a concerted effort from
all involved to pull together
- this includes government,
designers, developers and building regulators.
Those that are struggling to get onto the housing ladder are the
biggest losers with one of the prime issues being that of diversity of
choice in the marketplace.
The most obvious points to raise are that of trying to create a
larger mix of housing that is adaptable, to the changing needs of
the population. To reconsider where all the building should take
place, to reuse/readapt existing stock, to be more innovative in
our material choice and add technology to the mix. We need to
combine all of this with a smattering of imagination and realism
- absolute ownership may not be the solution and bringing living
back to the centre of our great cities should be a given.
We need our building stock to be well insulated, well built and
durable.
We need a housing czar!
Iqbal Johal, Editor
Hot Dip Galvanizing – An international journal published jointly
by the galvanizing associations of Germany, Great Britain and Spain.
Edited by: I. Johal, G. Deimel, H. Glinde (Editor in Chief). Published by: Galvanizers Association, Wren‘s Court, 56 Victoria Road,
Sutton Coldfield, West Midlands B72 1SY, UK;
Tel: +44 (0) 121 355 8838, Fax: +44 (0) 121 355 8727,
E-Mail: ga@hdg.org.uk, Internet: www.galvanizing.org.uk
Distributed in Australia by: Galvanizers Association of Australia,
124 Exhibition Street, Melbourne, Victoria 3000, Australia, Tel: 039 6541266,
Fax: 039 6541136, E-mail: gaa@gaa.com.au
This magazine may not be copied without the written permisson of the editor
© 2015
Photo front cover | Nigel Young
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Curvaceous landmarkUniversity of Turin
Designed to create a traffic-free oasis in the heart of a city plagued
by congestion, the modern campus for Turin University has
definitely made a statement.
Since the 1990s, the university of Turin has gradually moved all of its faculties
to a new campus situated on former industrial land bordering the River Dora.
The new campus was recently completed with a master plan by Foster +
Partners and realised by local architect/engineers ICIS. Who to their credit
adopted all of the original Foster design concept. The campus houses facul-
ties of law and political science along the edges of a triangular plot incorpo-
1 | Central courtyard forms modern interpretation of the traditional cloistered quadrangle
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rating a modern interpretation of the traditional cloistered quadrangle,
formed of two linked buildings, unified by a single roof canopy and
arranged around a central courtyard.
The new complex has had a significant impact on the cityscape of Turin
transforming the nearby river into a focal point and established impor-
tant links with the city centre and surrounding road network. It has
become a new landmark for Turin, particularly as a result of its large
tensile roof structure which can be seen from across the city.
A new four-storey library is located on the northern edge of the site,
parallel to the River with the Law and Political Science faculties to the
south. Each faculty has its own entrance from the central courtyard. The
ground floor accommodates lecture halls, circulation and social spaces,
with teaching and faculty rooms in the quieter levels above. The first
floor is visible as a mezzanine in the double-height entrance atrium to
each faculty, animating the linear route that runs the entire length of the
building. A second floor balcony incorporates entrances, as well as seat-
ing and informal breakout spaces and a roof garden at the top of the
Political Science faculty provides a quiet space for study. Floor plates
are flexible to support changes in teaching priorities, and an innovative
design for the 500-seat auditorium allows it to be split in two.
The cantilevered membrane roof which gives the appearance of float-
ing above the campus adds a unifying element. The canopy, with its
large overhang, was designed to introduce effective passive cooling
strategies. This feature in combination with the intelligent building sys-
tems and tri-generation heating and cooling will allow the facility to use
20% less energy than other buildings of the same size and function.
Canopy Structure
A 16,700m² membrane stretched over 54 galvanized steel arched
frames, generating a wave effect that is characterized by a constantly
changing curvature, floats above the new campus. It required sophis-
ticated engineering with allowance being made for deformation in the
event of an earthquake.
Its substructure is formed by a complex three-dimensional steel struc-
ture composed of a series of arches connected together by an impres-
sive edge beam (necessary to counteract the high tensile forces). A
network of galvanized steel hollow sections are used to form arches
that vary in length from 20m to 52m. These were preassembled off-site
in the form of 108 mini trusses that, once raised and positioned, have
been connected to form the final single arched module. The whole
structure is bound together by the 1,000m long perimeter edge beam.
The use of steel enabled the variation in size to be easily taken into
account and for prefabrication to take place off-site. This enabled the
whole structure to be completed within 6 months with teams working
in parallel on the project completing up to 12 units a day.
The new addition to Turin, with its sweeping structure that is environ-
mentally and site conscious, has already become a recognised land-
mark. Movement, connection and participation are emphasised through-
out the new campus. Measures such as hardscaping that employs 7,200
photocatalytic paving tiles to help neutralize the movement of pollutants
such as dust and the meandering green ‘philosopher’s walk’ add to the
creation of a connected space.
2 | A mini oasis has been created in the heart of Turin
3 | A complex network of galvanized steel trusses form the framework for the roof structure
Architect | Foster + Partners / ICIS SrlPhotos | Nigel Young
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Living greenhouseSchille Solar House, Germany
Almost 30 years ago, the owner of a modernist house in the
Spessart mountains wished for a conservatory addition to
compliment the existing structure.
The solution developed into the creation of a ´house within a house‘. The
construction of the hot dip galvanized frame mimicked that of a green-
house. A recent inspection of the galvanized structure carried out by
Institut Feuerverzinken, found coating thicknesses of between 60 and 120
micrometres remain on the steel. This would indicate that the coating will
provide at least another 50-80 years of protection.
The client is still very pleased with the original concept of the living space
and the savings on energy bills. “It has been a maintenance-free building
apart from looking after the render“.
Architect: Hans-Jürgen Steuber, Jacobsthal / Frankfurt
Photos: Institut Feuerverzinken
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1 | Modernist solar house within an envelope of galvanized steel and glass
2 | Galvanized conservatory structure will probably provide a 100 year maintenance-free life
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Adaptable, flexible housingSlip House, Brixton, London
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2015The concept of a new ‘terraced’ house, squeezed into under-utilised brownfield sites
that can enliven local communities and produce ‘homes’ which create opportunities
rather than be dormitories or financial assets was an aspiration for Slip House. It has
been designed as a flexible space that can be used as a single home, studio workspace
and apartment.
Occupying one of four plots forming a gap in a typical Brixton terrace, Slip House creates a new
prototype for adaptable terraced housing. Three simple ‘slipped’ orthogonal box forms break up the
bulk of the building and give it its striking sculptural quality. The top floor is clad in milky, translucent
glass planks, which continue past the roof deck to create a high level ‘sky garden’. Designed to Code
for Sustainable Homes Level 5, it features ‘energy piles’ utilising a solar assisted ground source heat
pump. PVs, a wildflower roof, rainwater harvesting, mechanical ventilation and an airtight envelope
with massive levels of insulation make this one of the most energy efficient houses built in the UK.
The perimeter walls are load bearing, freeing
up the internal areas of supporting columns.
The house’s open-plan layout ensures that
walls / dividers are simple to erect and require
minimal construction effort. This aspect of Slip
House is not only financially sustainable but
also environmentally so, as it helps to ensure
the permanence of the overall structure, as
minimal modifications can allow the house to
adapt to changing lives and living situations.
The house takes the idea of three slipped box-
es. The boxes are carefully placed to maximise
light and outlook from inside while not intrud-
ing on neighbour’s outlook. The shifting planes
also break up the bulk of the building and give
it its sculptural quality.
Slip House is draped with a translucent
curtain of glass, and this is what the house
has become identified with, but look a little
closer and another equally crucial component
emerges. This is the use of galvanized steel.
The structure of the house is an engineered
and braced steel frame. The design team have
sought to expose and express this wherever
possible, sometimes directly on view, or at
times glimpsed through the glass panels. Rath-
er than conceal the steel structure, structural
sections have been carefully considered in
terms of junction details and galvanized so that
they can form exposed structural components,
capping details, brackets and flashings.
Close to 100 bespoke galvanized bracket components were designed and fabricated to support the
glazing system. One of the key aesthetic elements of the facade are the galvanized elephant grating
grilles and balustrades. These were manufactured with differing spacing dependent on use and span.
The galvanized finish of these components is conceived to work with the changing reflective qualities
of the white glass panels and to give the building an industrial patina from day one.
1 | Slip House has been designed as a flexible space that can be used as a home, studio or workspace
2 | Three ‘slipped‘ orthogonal box forms break the bulk of the buil-ding to give its sculptural quality
3 | 100 bespoke galvanized compon-ents were designed and fabricated to support the glazing system
Architect | Carl Turner ArchitectsPhotos | Tim Crocker
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Intelligent Eco houseB10 Bruckmannweg, Germany
Rubbing shoulders with its famous Bauhaus neighbours, B10
makes its own innovative statement. Many aspects of the
interactive house look like something from a James Bond film
with its self-learning energy management system and auto-
mated facade sections.
B10 generates twice as much energy from sustainable sources as it
requires. It uses the surplus to power two electric cars and supplies the
Weißenhof Museum, which is located next door. Located in the heart of
the famous Stuttgart suburb of Weißenhof and surrounded by Bauhaus
buildings designed by world-renowned architects such as Walter Gropi-
us, Ludwig Mies van der Rohe and Le Corbusier. B10 has nevertheless
turned out to be just as innovative as its neighbours were 90 years ago.
The architect and engineer, Professor Werner Sobek, was in charge of
planning and design bringing together the energy systems of the electric
vehicles and the building to form a single, integrally controlled system. It
unites the charging infrastructure and the installation engineering for the
generation, storage and management of energy into one central element
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B10 Bruckmannweg, Germany
– B10 provides a link between the users, the building
and the vehicles. The energy management system
is adjusted to the recorded everyday routines of the
user, and ensures that the electric car is sufficiently
charged at the appropriate time. Once the user has
left the building, all the domestic technology systems
are switched into energy-saving mode. At the end
of the day, the building prepares for the occupant’s
return. When any of the electric cars belonging to
the interactive house approaches, the energy man-
agement system switches on the heating or cooling
systems, based on the vehicle’s geoposition. When
the car is a few metres from the building, the gate
opens, the lights are switched on and the facade is
lowered to the desired position.
The building offers some important design innovations.
The interactive house was designed and pre-fabri-
cated within a few months, and erected on-site in
a single day. Other important innovations include
the use of 17mm thick vacuum glazing that forms a
storey-high glazed front and facade elements that fold
and double-up as a terrace. The steel supports of the
individual foundations and the steel grid on which the
building stands have been hot dip galvanized, as has
the steel substructure of the folding terrace.
Like all experimental buildings designed by Werner
Sobek, B10 uses a minimum of resources and is
completely recyclable. It fulfils all the requirements
of the triple zero standard: the building generates
more energy than it actually requires (zero energy),
causes no emissions of any kind (zero emissions)
and all materials can be recycled without any resi-
dues (zero waste).
Architect | Prof. Werner SobekPhotos | Zooey Braun
1 | Pre-fabricated within a few months, and erected on-site in a single day
2 | Energy management system is adjusted to the recorded everyday routines of the user
3 | Rubbing shoulders with its famous Bauhaus neigbours B10 makes its own innovative statement
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Framingthe landscapeLavaflow 5, Laupahoehoe, Hawaii
Located on thirty acres of remote pasture, Lavaflow 5 attempts
to frame the sea and sky with a minimal structure. The slender
galvanized steel frame supports walls of varying opacity; from
nothing, to glass, to screen, to solid - creating a laminate of
materials tempering the expansive view overlooking the Ham-
akua coastline on the eastern slope of Mauna Kea on Hawaii’s
Big Island.
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The remoteness of the site, the architect’s desire for large open
expanses, and a commitment to build sustainably led to a pre-
fabricated method of construction. Working closely with a struc-
tural engineer, the architects designed and developed a bolted
structural system based on wide flange beams that allowed for
long spans of steel while keeping the elegance of scale they had
envisioned.
Using a specialised fabricator that normally focused on small-
scale architectural steelwork such as complex staircase designs,
enabled the frame to be fabricated to the required high toleranc-
es. An off-the-shelf corrugated self-supporting roof system was
integrated into the structural engineering and delivered to site
along with the steel frame. The main steel structure was erected
within 5 days.
The elevated position within a coastal environment and strong
winds made material choice of paramount importance that was
tied in with the design philosophy; slender concrete raft and
an exposed galvanized steel frame. In order to further miti-
gate some of the climatic conditions, the footprint of the house
is based on a slender rectangle with all rooms looking north
towards the ocean. Circulation is restricted predominately to the
south side of the house with solar gain being controlled by the
use of a delicate screen that runs along the south elevation.
The narrow plan of the house provides passive cooling through
cross-ventilation allowing for the elimination of mechanical air
conditioning. The industrial screen filters the sunlight creating
a consistent and diffused interior light throughout the day. This
decidedly simple building of galvanized steel, concrete and glass
provides the essential requirements for living while focusing
attention on Hawaii’s dynamic environment.
Architect | Craig Steely ArchitecturePhotos | Bruce Damonte
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1+3| The narrow plan of the house provides passive cooling through cross-ventilation, eliminating the need of mechanical conditioning
2 | The elevated position within a coastal environment and strong winds made material choice of paramount importance
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Now over twenty years old, the Ellis-Miller House was designed by Jonathan Ellis-Miller while working for the
eminent modernist architect John Winter. Winter had built two houses for himself including 81 Swains Lane,
London in 1969, which is now grade 2 listed and is currently being restored by Ellis-Miller. Winter thought it was
essential that architects built and lived in their own houses and therefore encouraged Jonathan to undertake his
own self-build project.
A site in the unprepossessing Cambridgeshire fenland village of Prickwillow was purchased because it presented no signifi-
cant planning challenges and a clean slate to build a house with the daunting challenge of a £40,000 budget and a develop-
ing architect’s own limited technical ability.
Minimalist gemEllis-Miller House, Prickwillow
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Ellis-Miller wanted to explore a modern house design that used tech-
niques of off-site and modular construction, without having to resort to
traditional craft skills. The house was to be small with only 66m² and the
form was a simple box: it was to enclose the maximum volume using
the minimum amount of material. Ground conditions in the Cambridge-
shire Fens are treacherous and thus a lightweight form of construction
would ensure that a reinforced concrete raft foundation could be used as
opposed to using expensive piling.
The need for the house to be lightweight meant that a steel framed
design was chosen comprising of a very simple galvanized hot-rolled
post and beam steel frame, with a trapezoidal galvanized steel structural
roof that would double up as a ceiling finish. Ellis-Miller was keen to use
steel wherever possible and rather than using timber studs for non-load
bearing walls galvanized steel studs break-pressed from 0.6mm sheet
were used. The roof finish was based on a galvanized standing seam
system. In fact galvanized steel was used in every major element of the
house.
Environmental issues were also an important design element of the
house. The roof was highly insulated using over 300mm of rockwool and
the floor and walls were insulated to a much higher standard than was
the norm in 1991. Underfloor heating was incorporated and solar gain
on the fully glazed western elevation was controlled by the introduction
of electrically operated external aluminum venetian blinds. These blinds
controlled solar gain and acted as external curtains.
To contrast the self-finished materials used for the structure and cladding
of the house, internally more colour and contrast were added by the use
of reclaimed parquet oak flooring throughout.
The house, once completed, was well-received by the trade and national
press and was given many awards, the most recent being the Twentieth
Century Society best 100 building of the 20th Century.
To date, the house remains in excellent condition and the steelwork is
pristine, a tribute to the initial investment in high-quality corrosion
protection.
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1 | A simple galvanized steel framed design was chosen comprising of a post and beam frame
2 | To contrast the self-finished materials used for the structure, internally more colour and contrast were added by the use of oak flooring
Architect | EllisMiller ArchitectsPhotos | EllisMiller Architects
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A fine coat of galvanizingHealth Centre, Móstoles (Madrid)
The Social Care and Health Centre in the city of Móstoles (Southern
Madrid) has been designed with two crucial design considerations:
the creation of a multi purpose space on a very tight budget. Located
in an area of urban expansion, its footprint and relationship with the
environment is influenced by the surrounding streets. On this basis,
the architects were able to design a building that optimises the inter-
nal space and link to its surroundings whilst making a statement.
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2015The four-storey structure creates more than 2,350m² of space incorporating 51 offices. The
new centre has been designed to cater for three main areas of social and health care provi-
sion in Mostoles: accident and emergency, to act as a centre of excellence for preventative
medicine and a primary general health care centre for the area. The finished building satis-
fies all the management needs and allows the public to quickly access the required area.
An important element of the design was to counterbalance the traditional solid form of the
external shell and transpose an internal design that catered for the creation of open areas
throughout the building. The design would also have to be optimised to allow maximum
penetration of light into the far reaches of the building.
This has resulted in the provision of a calm and soothing internal environment. Wrapping
the building with a thin skin made of galvanized steel added to the interplay with light. The
façade generates a thermal and solar buffer, maintaining the visual privacy of the offices
without hindering the external views from the interior.
Minimum cost of maintenance of the entire building was also one of the reasons for the
extensive use of galvanized steel.
Architects | Ignacio Borrego, Néstor Montenegro and Lina Toro
Photos | Miguel de Guzmán
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1+2 | The new building creates a multi purpose space on a very tight budget
3 +5| Internal spaces are creatively designed to provide a calm and soothing internal environment
4 | Minimum cost of maintenance was one of the resons to exten-sively use galvanized steel
Galvanizing Delight
This innovative design for The Kiosk came about as part of a change
of use application for the neighbouring retail unit, which had previous-
ly been used as a florist. The concept for the rippling CNC-cut timber
layers of the facade resulted from an ambition to reinvent the conven-
tional idea of a floral motif.
The timber layers of the facade are supported on a galvanized steel
structure; both were fabricated off-site and then installed on-site as
a pre-assembled object. The lozenge shape of the kiosk rotates to
be open during the day, creating preparation space. The flowers are
displayed on shelves that are placed on the surrounding pavement,
and are stored and locked in the kiosk at night.
Photo | Charles Hosea Photography
The Kiosk
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