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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