arc h i t e c t u m
February 2008 | edition 9 | International Magazine Koramic Clay Roof Tiles
Clay Roof Tiles
arch i te c tum publisher Wienerberger AG editorial staff Christian Van Thuyne (Belgium), Isabelle Bevernage (Belgium), Franz Kolnerberger (Export), Anne-Raphaële Porcherot (France), Laëtitia Deviterne (France), Jacqueline Dietsch (Germany), Geert Kamps (Holland), Monika Sikorska (Poland) editor Staf Bellens (Belgium), Pavel Stojar (Czech Republic), Jean-Pierre Cousin (France), Gerard Halama (Germany), Tom de Vries (Holland), Caroline Kruit (Holland), Yasushi Matsuyama (Japan), Andrzej Stolarczyk (Poland), Erik Alschuler (USA), Stuart Matthews (USA) photography Peter Verplancke (Belgium), Ester Havlová (Czech Republic), Laurent Cheviet (France), Gerard Halama (Germany), Hubaer Kusters (Holland), Hejber & Maryks Promotions (Poland), Mark Hill (USA), Fred Martin (USA), Durston Saylor (USA) co-ordination & realization Stefan Claeys Sabine Merlevede design & prepress Ikaros Communications (Belgium) press Deckers Druk (Belgium) editorial office Wienerberger Export Division Wienerberger House Ter Bede Business Center B - 8500 Kortrijk T +32(0) 56 26 43 31 F +32 (0) 56 26 43 32 email@example.com www.koramic.com This magazine from
It is with great pleasure that we present the 2008 Spring edition of our Architectum magazine. Since the ﬁrst edition was published six years ago, we have always tried to show you different applications of our KORAMIC clay roof tiles: from a traditional rooﬁng material to modern wall cladding.
In this edition, we would like to point out some extraordinary wall cladding projects from Belgium, the Netherlands and Czech Republic. Belgium and the Netherlands, especially, have a long tradition in using clay roof tiles for wall cladding. This time we also have a very interesting wall cladding project on the Czech ﬁlm studios in Prague.
On the basis of two international projects in the USA and in Japan we want to illustrate the creative side of roof design with Aléonard traditional clay plain tiles. The wide colour range allows a multitude of different blends, specially adapted to the house style and the surrounding.
Once again we hope we have given you an inspiring selection of our product mix. Enjoy your voyage of discovery through Architectum!
Franz Kolnerberger Export Manager
appears in Dutch, English, German, French and Polish. ARCHITECTUM is distributed in Austria, Belgium, Canada, China, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Hungary, India, Indonesia, Ireland, Latvia, Lithuania, Luxemburg, Malaysia, Norway, Philippines, Poland, Singapore, Spain, Sweden, Taiwan, Thailand, United Kingdom and United States.
Highlights 4 8 5
3 1 2
A VILLAGE WITHIN A TOWN
Distinctive clay facing from top to bottom
PRACTICALITY MEETS ELEGANCE
SCHOOL IN THE LOCAL STYLE
Complex design realised within budget
Largest studios in Europe - pride of the Czech dream factory
Tempest tiles give a warm ambience to a meeting place
Living and working in a tower and a tiled barrel vault
THE IMAGE OF A VILLAGE
AN EXERCISE IN STYLE
At home in the Belle Ă‰poque
Lake house near Greenville, South Carollina
DISTINCTIVE WITHIN THE WHOLE Basic shapes united by use of a flat tile
A village within a town Distinctive clay facing from top to bottom [France]
The Stift retirement home at Marlenheim is a new construction that was
Tile layout as an architectural feature
built after a competitive architectural design tender. It has replaced two
The roof sections are subdivided by a central gutter in such a
older homes. The contemporary architecture is integrated with the sur-
way that each residential module appears to have an individual
rounding town, while stating its own identity in slate engobed clay.
roof of its own, giving an appearance of a cluster of houses grouped together. Calculating the layout of the roof tiles
New architecture – continuity in the town
without having to cut any of the tiles, with the central gutter
This retirement home is designed to accommodate 75 residents, ﬁfteen of
being exactly the same width as one tile, demanded extreme
whom are housed in a unit for people exhibiting the symptoms of Alzheimer.
precision in the work of the Olland rooﬁng company. The buil-
It replaces two buildings with a history of charitable donations (Hoerter and
ders were also able to build the shell of the building sufﬁciently
Sainte Famille) that have anchored them ﬁrmly in the community spirit of
The wall cladding may be less important, but it was created
The entrance courtyard opens out into the town, creating a square where the
by the company Marwo with the same geometric rigour as
lives of the residents and their visitors can merge together calmly with the lives
the rooﬁng and is evident to the extent that it provides visual
of the people of Marlenheim. Visual transparency and lines of sight have been
continuity with the surrounding building, from the roof right
created for this space, while still closing off the areas that had to be there for
down to ground level, thereby also reducing the apparent
the safety of the residents.
height. The terracotta façade plates, light grey in colour, ﬁt in
Ms. Fritschmann, who runs the establishment, stresses the way the ambien-
perfectly with the slate tones of the roof covering in ﬂat Actua
ce has changed. It is nothing like the living conditions they had previously, in
Duplex clay roof tiles.
locations that were sombre and poorly adapted. The living areas where the Project
residents start their day face eastwards. They are at the bottom of the square
Stift retirement home (formerly the Hoerter and Sainte Famille residences),
and are bathed in sunlight. This has a beneﬁcial effect on the dynamism of all
For the director, the slate-coloured clay roof tiles and the light grey ArGeTon
K’nL Architecture, Mathieu Laperrelle, Rouffach
façade plates – standing out strikingly amid the dominant red tile of the sur-
OPUS 67, Strasbourg
roundings – give this building its own identity.
Clay roof tile
Koramic Migeon Actua Duplex, slate engobe
Retaining discrete volumes The architect had to treat the project as if it were a series of small-scale houses, so as to minimise the visual impact of the 4,000 m2 of new ﬂoor area. The most difﬁcult aspect was reconciling the need for thermal and climatic comfort - and the costs - with this architectural consideration. Because of the seismic activity of the region, the structure had to be built in reinforced concrete. This offers an effective solution to the problem of acoustic insulation between the accomodation units. The slenderness of the concrete slabs also limits the volume and overall height of the building, in line with the restrictions of the POS zoning plan. Parts of the façades are in roughcast concrete, in a similar fashion to facings typical of the Alsace region, whereas the gables overlooking the square are covered with light grey façade plates with warm nuances, complementing the slate-ﬁnish tile layout of the roof.
Different living Living and working in a tower and a tiled barrel vault
The house that architect Julius Bosma works and lives in with his family
Mastic to keep the upper roof tiles watertight
speaks a language of clear shapes, simple use of materials and austere
For the powerful but austere lines of the architecture, Bosma
details, making it a conspicuous point of calm in the richly varying archi-
chose three dominant colours and materials: black bricks for
tecture of Sneek’s De Oudvaart district. The design comprises a union of
the tower masonry, silver-grey for the zinc end walls of the half
a rectangular black brick tower with a barrel vault that is covered in clay
cylinder and clay for its roof. Narvik FD clay roof tiles go from
ground level to the ridge. There are no gutters: gravel traps at ground level provide drainage. The roof tiles are screwed
Beyond the usual shapes
onto battens, part of the wooden box panels that – along with
The studio’s main activity is designing detached and semi-detached houses.
insulation, ﬁnishing, foils and laths – were pre-fabricated to the
Most of the 150 that he has designed over the last 15 years, primarily for project
exact curvature required. Each section includes a large pivo-
developers, have been built in a traditional way. But when a larger house was
ted window to let daylight into the house. To prevent rainwater
needed for his growing family, he allowed himself a design that went beyond the
from blowing in at the almost horizontal ridge, the ridges and
usual. In a reaction to traditional thinking about house-building, he developed
the top three rows of roof tiles have been sealed.
the ‘different living’ concept based on different ﬂoor plans, shapes, choices of materials and construction. For his own residential and living accommoda-
tion, he combined these aspects with a fascination for towers and the rounded
Bosma used the same shapes for the detached carport and
shape of the Nissen hut. Bosma says, “This shape combines maximum volume
storage area as for the main building. The rounded shape used
with minimum surface.” There is a three-storey black brick entrance tower, plus
here has a smaller radius, so smaller pantiles were used: Pot-
a semi-cylindrical main volume faced with natural red clay roof tiles and end
telberg Tempest Tile 44, in the same natural red colour as the
walls faced with patinated zinc sheeting.
house’s Narvik FD.
Living/working accommodation at the Duiker, Sneek (The Netherlands)
Combining a tower with a barrel vault allows non-standard ﬂoor plans. This is seen particularly in the layout of the semi-cylindrical main volume. The main load-bearing construction comprises four composite trusses of laminated Rus-
The Bosma family
Julius Bosma, Sneek
sian larch, dividing the layout into three equal areas. Bosma also subdivided this
Aannemersbedrijf Plantinga, Scharnegoutum
area lengthwise with a sand-lime brick wall which, with steel coupling girders
Onderhouds- en dakdekkerbedrijf Zagt, Oldeboorn
between the trusses, supports the concrete ﬂoor of the ﬁrst storey. Clay roof tile
Koramic Narvik FD, natural red (house) and Koramic Pottelberg Tempest Tile 44, natural red (storage/carport) p
Practicality meets elegance
Largest studios in Europe - pride of the Czech dream factory
Prague’s Barrandov studios are as important to Czech cinema as
wall are even more blunt, the red façades broken only by grey
Hollywood is in America. Founded in 1931, they now have an excellent
brick technical rooms with staircases and an overhead corridor
name in world ﬁlm-making. Since last year the Czech dream factory also
joining up to other ﬁlm studios. There are no windows, as light
boasts the largest studio in Europe, the work of Hans-Paul Architects,
could be a problem when ﬁlming.
proving that even large practical buildings need not look monotonous or
“We used 36,000 m2 of clay roof tiles for the facings. It is
boring. The main feature is an unusual façade of Koramic Migeon Actua.
a very nice material, easily ﬁtted and only needing a minimum of care,” says architect Filip Ziegler. Paradoxically, Koramic
clay roof tiles were only used for the façades; the roof is of a
The Barrandov district, named after French palaeontologist Joachim Barrande,
has an individual charm. Film studios were founded in the Thirties on a terrace above Prague by Vaclav Havel, father of the former Czech president, aiming
Everything for the needs of ﬁlm makers
to create an architecturally modern garden town. A restaurant was soon follo-
The interior is strictly suited to its purpose: a modern sound-
wed by villas for ﬁlm stars and businessmen. More importantly, modern studios
proofed ﬁlm studio of 4,164 m2 and 14 m in height, offering
for making ﬁlms with sound were built. The whole studio district became an
ﬁlm makers ideal resources and comfort. Even the wooden
example of functionalist architecture.
ﬂoor is practical, allowing easy installation of sets. Unique
The creators today had to pay special attention to this, as well as to the requi-
dismountable soundproof walls allow the 100 m to be divided
rements for a building to meet the high demands of the world’s ﬁlm-makers.
into three separate studios, each with its own entrance.
The challenge for Filip Ziegler and his company Hans-Paul Architects was by
The interior architect was only able to give his fantasy free rein
no means easy.
in the space for the ﬁlm makers. The boldness of other parts of the building contrasts with the brightly coloured accessories in
Massive and blunt façade
the areas for technicians and actors. The corridor ﬂoor design
At the premises of these legendary studios, the attractive large building took
looks like a strip of ﬁlm.
shape in which the new studio is located. It has been built with moderate and Project
practical shapes but it is still elegant, with an eye-catching red covering giving
Max Film Studio, Barrandov Studios, Prague (Czech Republic)
the large façade a soft structure. The front wall is over 100 m long, interlaid with three solid blocks creating pillars of grey bricks supporting the whole mass. They have blue doorways to allow entrance of ﬁlm sets and technology. The 40 m side walls and the 100 m back
Barrandov Studios, Prague
Hans-Paul Architects, Prague
Clay roof tile
Koramic Migeon Actua, 60% natural red, 40% multiblend
Lake house near Greenville, South Carolina
The North American importer of the Koramic range of clay roof tiles has
lines can be moved through small curvatures and over eye-
the opportunity to be involved in many truly magniﬁcent projects. The
brows etc. – and so they were reasonably sure it was possible.
Lake house in South Carolina stands out as one of their most interesting
That is, if good installers could be found.
roofs. Judging from the pictures, it is clear that it must have been
Geometry and algebra
This house is in a remote location and experienced roof tile
Victorian braised blue blend for muted shades
installers are thin on the ground, especially ones who are pre-
They were familiar with the client, the designer and builder from a previous
pared to undertake a project of this complexity. Luckily, the
project, and knew that he liked to push the design envelope. He described the
site superintendent had some friends who were available for
site as being a challenge. The house was to be situated on a narrow shoreline
work for the summer. They met up on site and the relevant roof
surrounded by steep, heavily wooded cliffs. The approach is along a winding
tiling theory and the basis of battening were discussed. The
drive with a very steeply curved descent to the house. The initial view is actually
installers picked it up quickly and installation soon began on
from above, so the client did not want the attention of the driver distracted by
the few simple areas. Inspired by geometry and algebra, they
an overly colourful roof. When the house is viewed from across the lake, he also
quickly picked up the idea of varying exposures and shufﬂing
wanted the whole structure to blend into the surroundings; the roof therefore
the gauge. By the end of the summer the roof was ﬁnished,
needed to use muted tones. Old Hollow Tile 451 was suggested as the tile
a testament to the practical usefulness of all that geometry,
proﬁle. The Victorian braised blue blend would provide the muted shades and
algebra and calculus that sometimes seems so impractical
so this soon became the proﬁle of choice.
when viewed from the schoolroom.
Avoiding standard concepts
Lake house near Greenville, South Carolina (USA)
The next challenge was the detailing and installation. With a designer who
loves to create interesting shapes and avoid the concept that the ridge should
Kunstwerke Inc., Scott Kunst,
run parallel to the eaves and the gables should simply be at right angles, you
Simpsonville, South Carolina
need an installer who loves a challenge. Initial work had to be based on the
model of the house, as plans were not drawn until the project was actually on
Northern Roof Tiles, Ontario (Canada)
the ground and building was well advanced. It was far from clear how it could
Clay roof tile
Koramic Pottelberg Old Hollow Tile 451, Victorian braised blue
be done, but past experience with the 451 pantile had shown how ﬂexible the installation can be – how exposures can be shufﬂed and even how the gauge
The image of a village Tempest tiles give a warm ambience to a meeting place
Clubs and associations play a key role in local society. Architect Dirk De
The building belongs here
Meyer therefore took great care in designing and detailing the meeting
“Thanks to the scale and the many accessories, you are able
centre in Schuiferskapelle. He succeeded in integrating the industrial buil-
to create a wide range of shapes using Tempest tiles. We
ding in the village centre.
arranged all the dimensions of the steel structure to suit the clay roof tiles, so that not a single one had to be cut. The
Reconciled with the surroundings
tender was based on this detailed plan, containing placement
Firstly, the architects’ ofﬁce examined whether the existing buildings on the cor-
instructions down to the last millimetre.”
ner plot could be converted into a meeting centre containing function rooms, a
“That raised a few eyebrows locally at ﬁrst – what, roof tiles on
party hall, a lending section belonging to the library, ofﬁces for the town ofﬁcials
the wall? But after a few weeks they had already forgotten that
and space for services. However, that did not prove to be possible. Everything
the building was there. It simply belongs here.”
was therefore demolished and replaced by a completely new structure. Project
Given the limited time for construction and the restricted budget, the architect
Meeting centre, Schuiferskapelle (Belgium)
chose to use a modular steel construction employing panels. The question then arose immediately of how to reconcile such a relatively large building with its surroundings, in this case a typical village centre.
Tielt town authority
DDM Architectuur – Dirk De Meyer, Tielt
Joris Laethem, Wingene
Clay roof tile
Z shape with pent roof
Koramic Pottelberg Tempest Tile 44, natural red
The solution was as simple as it was ingenious. The architect designed two volumes with a pent roof, arranged in a Z shape. The roof slope clearly ﬁts in as an extension to the row of saddle roofs, while also providing the maximum amount of usable space. The two parts bound a square that is suitable for all sorts of village activities. The roof and walls were covered with natural red Tempest Tile 44. “Using the same material resolves the dichotomy between the roof and the wall, creating a single coherent volume.” Because it is a public building, the walls are protected at the bottom with a prefabricated concrete skirt.
Restoration of Schloss Castell Historic building preservation: shape before colour
Historic building preservation is not merely a building discipline: it can
primarily for mixing in with older roof tiles. These areas show a
also be an important part of family life - if you live in one! At Schloss
full and lively range of colours and shapes. A genuinely beau-
Castell, not far from Nuremberg, old building materials obviously need to
tiful object that demanded a highly concentrated effort for such
be used. Maintenance and care are as much part of the picture for a blue-
a large area from the artistically fastidious builders.
blooded family as management, leadership and representation are.
Spanning the centuries Roof beams replaced
You might imagine that much of the roof is 100 to 300 years
The current master is Count Ferdinand of Castell-Castell. As well as the oldest
old. The new tiles on this roof have a good chance of becoming
bank in Bavaria, the family has forestry and agricultural interests and wines that
very old too. The coal-ﬁred beaver tiles, with their multiplicity
have won numerous prizes. The foundations of the castle, built in 1691 with
of shapes and varying lengths, bring the roof area convincingly
stone sourced from old castle buildings destroyed in the Peasants’ Wars of
to life. Denkmalpﬂege – the historic building conservation
1525, are on tough ground with gypsum layers and silty clay that is perfect for
society – was pleased with the results.
Beaver tile gallery display: nothing is impossible
The roof was last restored in the Fifties, so thorough restoration was going to be needed. Two main channels were particularly badly affected and the roof was becoming increasingly leaky in other places. Structural tests showed that
The “Koramic Manufaktur” beaver tile gallery is a modular
some of the joists, rafters and some ceiling beams below would need replacing
system construction kit for historic and exclusive beaver tiles.
or strengthening. Under a protective second roof, the old clay tile rooﬁng was
Historic building restorers and discriminating builders can put
removed and put into temporary storage. The roof beams were then restored.
together the exclusive beaver tiles they want from this product range. There are ﬁve sizes, eight shapes, six standard thick-
Conservative or complete renovation?
nesses, ten engobe colours, traditional glazes, various clay
Although others advocated complete renovation, the Count wanted to retain
colours, including distinct intensities of coal-ﬁred tiles, at least
part of the old rooﬁng. “Finally,” says Count Ferdinand, “they agreed that roof
nine standard surface effects and numerous extras such as
tiles that had lasted for 200 years plus would probably last another 100.” One
concave or convex beaver tiles: the gallery shows that nothing
beaver tile from the old roof was emblazoned with a date of 1687: well over 300
years old and had surely been re-used several times already. The old roof tiles were mostly used for re-tiling south-facing sections and inner courtyard areas. Geometry and surface structures come to the fore, rather than colours. The key
factor in choosing the new roof tiles was a visit to Koramic, who showed that
Restoration of Schloss Castell, Nuremberg (Germany)
everything was possible. A total of eight types plus a special slim ridge tile were
Count Ferdinand of Castell-Castell
needed. The builders looked through the beaver tile display gallery and selec-
Müller + v. Soden Architekten BDA, Fulda
ted roof tiles with a slight coal-ﬁred effect (obtained by denying oxygen during
Supporting structure Mittnacht Beratende Ingenieure, Würzburg
ﬁring, available in ﬁnely-nuanced intensities), using an asymmetric shield shape
(gatehouse and side aisles): Feßler & Sohn Bedachungsunternehmen
and basket-handle arch as the basic pattern. The surfaces have six lengthwise
ridges and two tapering water guides. As well as the standard 18 cm roof tiles,
3/4 and 7/8 width beaver tiles were also ordered.
Handschuh GmbH, Schweinfurt
Various roof tiles were used for the completely renovated north, west and
Clay roof tile
Koramic Eisenberg Beaver Tiles, various colours
east-facing areas, in one width and two lengths. The narrower roof tiles were
> [The Netherlands]
School in the local style Complex design realised within budget
The pyramidal roof of a “stolpboerderij” farm is a distinctive architectural
corners of the pitched roof allow daylight in. The second ﬂoor
element in the landscape of North Holland. For architect Kees Willems of
runs around the walls, creating a parapet. The lower panel of
architects and advisers Teeuwisse & Willems in The Hague, these speciﬁc
the glass lets daylight into the lower-ﬂoor classrooms. Skylights
local shapes were the inspiration for the design of the primary school De
have also been included where the roof covers the ground
Zevensprong in Heerhugowaard.
ﬂoor. Zinc-clad sections between the pyramidal roofs contain toilets and storage areas.
Two-storey pyramids The demography of many 1960s residential areas has now stabilised. Semi-
permanent schools were built in the new areas to handle rapidly growing
Numerous interconnecting shapes and the materials used
numbers of children – temporary buildings that are now at the end of their
make the design of De Zevensprong relatively complex. Anyone
lifecycle. More durable schools are now being built at a scale suited to the
familiar with the strict rules about budgeting in education will
new, steadier situation. De Zevensprong primary school in Heerhugowaard was
be surprised at a design like this. Teeuwisse & Willems have a
recently entirely re-housed. Teeuwisse & Willems designed two-storey pyramids
lot of experience in designing schools. Above all, the working
at three corners of a rectangular plot: 6 classrooms for the older classes. A
method at the start of a project allows optimum use to be
larger fourth pyramid for communal use extends beyond the rectangular
made of the available budget. Project architect Christian
boundary. Two ﬂat-roofed classrooms are being added for the younger children.
Janssen says, “We’re advisers as well as architects, so there’s
The dominant pyramid shapes, inspired by local “stolpboerderij” farms, are
a lot of in-house expertise. Calculations are made for the
faced with slate-coloured clay roof tiles. The ﬂat Migeon Actua has also been used
preliminary ideas - an integral design approach to let us make
vertically as wall cladding for the adjacent façades.
the most of the available budget.”
De Zevensprong primary school, Heerhugowaard (The Netherlands)
The load-bearing structure of the distinctive roofs consists of four truss legs Client
running over the ribs from the cap down to the ground. Galvanised steel
shoes link the wooden legs together and anchor them to concrete plinths. The
Stichting Valete, Alkmaar Teeuwisse & Willems architecten en adviseurs, The Hague
pyramidal shape has vertical façades at the foot and is not ﬁlled at the top due
Kees Willems and Christian Janssen
to the maximum height deﬁned in the zoning plan, so the laminated girders
De Geus Bouw, Broek op Langedijk
protrude beyond the body. To add a playful note to both interior and exterior,
Pannendekkersbedrijf D. Pool, Winkel
the truncated pyramid has a pitched roof. Large aluminium glass fronts at the
Clay roof tile
Koramic Migeon Actua, slate engobe
Normandy comes to Japan Nobele Villa Garden project for Shozan
Yasushi Matsuyama, the president of the company that owns the project, lived in Paris for over four years. He travelled around much of France and fell for the charm of the roof tiles there, which are quite different from Japanese black roof tiles. He was particularly impressed during a trip north by the AlĂŠonard plain roof tile and the splendour of times gone by that it reďŹ‚ects, leaving him with a real desire to use it in his own constructions.
> French roof tiles on a Japanese building
beauty. Nobele Villa Garden therefore has a good situation, with green sur-
In 1996, Shozan started construction of the building called
roundings and splendid scenery. The red shades of the Aléonard plain roof tiles
Farm Normandie. This was opened in July 1997 and its func-
complement the natural greens of the locality.
tion at the time was as a restaurant. In May 2007, the business strategy was changed and Farm Normandie was rebuilt to
become a wedding reception hall with the name Nobele
“When we did the repair work on the house, we constructed it as a Japanese-
Villa Garden. They currently accept just two reservations for
style building but with the French clay roof tiles. In order to allow the Aléonard
marriages per day and it is becoming popular as a place where
Patrimony plain roof tiles to be used and guarantee that the roof would be
private wedding parties can be held.
waterproof, the guest house was roofed more steeply than the original building.
The name Nobele Villa Garden is a coined word meaning
As a result, we were able to produce a wonderful roof that ﬁts in with a French
‘noble cottage’. A temple has been built within the same
looking scenery. The customer is very pleased with the atmosphere this has
structure and both the marriage ceremony and the wedding
created, and all the members of the construction team are also very happy
reception can therefore be held in a single building. Inside there
is a bar for drinks and plenty of room for relaxation.
Blending two traditions
An old Japanese private house next to Farm Normandie was
SHOZAN Co. Ltd. - Yasushi Matsuyama
acquired and converted into a guest room and bridal suite. This old private house had originally been built as a purely Japanese structure with Japanese roof tiles. The interior was completely reworked by Shozan and the external style of the
Bridal suite guest house, Kyoto (Japan)
Mizuno Construction Co. Ltd.
Karani Rooﬁng Tiles
Clay roof tile
Koramic Aléonard Plain Tile Patrimony 311 Handcrafted, 3 sizes, 1/3 Kent red, 1/3 vineyard black, 1/3 lichen green
house was also changed from a traditional Japanese style to a French style by replacing the existing roof tiles with Aléonard plain roof tiles. The resulting harmonization of a Japanese style with a French style is something they are very proud of. The Nobele Villa Garden is located near the famous Kinkaku-ji temple in Japan, which is surrounded by an area of natural
Owlsnest, Long Island Private residence in Lloyd Harbor, NY
Perched on a bluff overlooking a sheltered inlet on Long Island’s fabled
Gold Coast, this house faced the classic conundrum of the north shore
The building employs the latest technology. Integrally insulated
home: the grand sea views are on the north side of the building, but the
cast-in-place concrete walls provide both superb insulation
home owner required ample space, views and natural sunlight for all the
As beﬁts a legacy home, natural materials provide both longterm durability and the promise of graceful patina. The walls
are clad in four-inch limestone and granite with solid mahogany
Building on the work of great designers such as Lutyens, the architects Jim and
windows. Rustic clay roof tiles provide highly durable rooﬁng
Laura Smiros adapted the classic “sun-trap” concept. The X-shaped plan deftly
whose timeless appeal dovetails with the rustic aesthetics.
provides abundant sunlight and good views for each arm of the building, while
The modern and traditional technologies are united into an
providing efﬁcient and intimate circulation around the centre of the building.
ageless aesthetic based on the fundamentals of harmony
The house radiates out from the centre of a tightly deﬁned oval ﬁeld of formal
and proportion. The house speaks in a style that is unaffected
gardens, nestling in the verdant natural setting.
by the transient nature of our modern culture. The result is a surprisingly efﬁcient manor with a stately, timeless presence.
Aesthetics Project name
The large, semi-rural site suggested a reﬁned rusticity. The distinctly Tudor and
Private residence Lloyd Harbor, Long Island, New York (USA)
Cotswold architecture incorporates a smooth limestone for the base and the Architect
door surrounds, counterpointed by the rough granite rubble walls of the ground
Smiros & Smiros Architects, Glen Cove, New York
ﬂoor. The stones were painstakingly selected to achieve just the right combina-
tion of enticing warmth and seasoned comfort. Warm stucco tones clothe the
Gerold Brothers Builders, Oakdale, New York
ﬁrst ﬂoor and the gables. The rustic clay tile roof is crowned with a magniﬁcent
Paul Loth, Loth Rooﬁng, East Meadow, New York
array of chimneys constructed of hand-made weathered brick. Clay roof tile
The roof is a key element. It was done in the Koramic Patrimony range, clay
Koramic Aléonard Plain Tile Patrimony 311 Handcrafted, 30% small, 30% medium,
roof tiles made in rural France using materials and techniques that have stood
30% large + 10% Koramic Aléonard
the test of time. Multiple sizes and colours of clay roof tiles have been used,
Monuments Historiques, 30% lichen green,
suggesting the time-worn elegance of an old European stately home. The subtle
30% Kent red, 30% vineyard black and 10%
mix of mellow earth tones in the roof harmonises with the natural hues of the
surrounding woodland, a breathtaking sight in the autumn in particular.
An exercise in style At home in the Belle Ă‰poque
Thanks to the German architect and urban planner Josef Stübben, De
Natural colours preferred
Haan is an oasis of style on the Belgian coast. In 1912, he developed a
In accordance with the regulations, the whole structure was
plan with strict building regulations for the Concessie, a dune area that
roofed with plain tiles. The architect preferred the natural colour
had been made available for what were then the ﬁrst developments in the
of ﬁred clay. “If you were to look at an aerial photo of the region,
ﬁeld of tourism. The architect Ievan Decoster recently built a villa there
that would be the dominant shade.” Choosing Koramic as the
that was very much in the spirit of Stübben.
supplier was absolutely self-evident for Ievan Decoster. “I’ve been working with the company for thirty years now, to my full
Fitting in with the look and feel
Stübben’s preference for the pleasantly-proportioned building style of the Normandy region is still the determining factor in today’s local urban planning regulations. New projects must ﬁt in with the existing cultural look and feel,
Private residence, De Haan (Belgium)
without degenerating into bland and uninteresting copies. A captivating and
Ievan Decoster, Varsenare (Jabbeke)
Carl Godderis, Handzame
challenging stylistic exercise for an architect such as Ievan Decoster, who
Clay roof tile
primarily produces modern designs.
Koramic Pottelberg Plain Tile 301 Smooth, natural red
Another element that became a determining factor was the shape and orientation of the corner plot it was on. To create the required interior space, a longitudinally stretched house was the obvious solution. The architect was then immediately able to add spacious terracing on the south side in front of the house.
A tough rooﬁng job In accordance with the regulations, the walls were painted white. The panelwork sections, a visual reference to the Anglo-Normandian style, are actually a structure of laths with exterior plastering applied between them. The volumes acquire their liveliness from the interplay of different roof shapes and heights and dormer windows. Quite a nice job for a rooﬁng contractor who is desperate to show off his skills after the umpteenth gable roof! They were able to enjoy the channel gutters, corners and edges, bay windows and other precise details. The copper guttering ﬁts in perfectly with the overall concept.
Distinctive within the whole [The Netherlands]
Basic shapes united by use of a flat tile
Vathorst, a new residential area north of Amersfoort, is dominated by
to shape and gable tiles were used at the edges. There are
terraced rows of single-family units. The detached villas designed by
detailed reﬁnements at the transition between roof and façade.
Drost + van Veen in Rotterdam are distinct in both their typology and
A concealed aluminium gutter is ﬁtted here. The aluminium is
their architecture. The straight, tiled saddle roof covers a building with a
coated the same grey as the clay roof tiles and the drainpipes
dog-leg kink. This powerful, austere shape creates a moment of peace
are cleverly hidden, so the design is a balanced union of a
amid the triviality of the surrounding architecture.
few main shapes and free of fussy detail. It is precisely that austerity that distinguishes this small project from the often
intrusive architecture nearby.
On land formerly owned by a farm that is still there, ﬁve villas are arranged to give each house maximum privacy. 11,000 houses are to be built in the new
Distinctive within the whole
residential area, to be completed around 2014. An adjacent three-storey block
In urban planning terms, the project is a conspicuous calm
of ﬂats was designed along with the villas. The basis for both typologies is
point within Vathorst: villas placed loosely around the existing
the same: a rectangular body for the structure. By putting a thirty-degree kink
farm on a communal plot with a few parking spaces and a
to the left or right in the shape’s layout, Evelien van Veen found a simple but
separate garage. No property boundaries and the plethora
effective way of adding great expressiveness to the design. A simple saddle roof
of fencing they create: the whole project can be seen as a
of clay roof tiles introduces a second basic form. It does not follow the kink in
distinct unit. This undoubtedly inspired the garden layouts
the building’s shape, creating a fascinating interplay of surfaces where the two
of the residents, with private and communal areas merging
basic shapes meet.
seamlessly. The same careful choice of materials and detailing can also be seen in the adjacent apartment block. The scale is
different, but it is clearly part of the same family as the villas.
The displaced corner of the rectangular ﬂoor plan is twisted until it is precisely Project
under the ridge of the roof. The wall is at its largest here; south-facing, entirely
Five villas and three ﬂats in the Vathorst district of Amersfoort (The Netherlands)
of glass. Allowing the roof to protrude here too maximises the expressiveness Client
of the design. A warm red hand-moulded brick was used for the basic volume.
Schipper Bosch Projectontwikkeling, Amersfoort
However, as the tiled roof extends over the longitudinal walls, the bricks are only
Drost + van Veen Architecten, Rotterdam
seen at the bottom and in the formal and relatively enclosed entrance. The clay
Evelien van Veen
roof tile chosen is a slate engobe Migeon Actua – a large, ﬂat tile that has been
Landscape architect Gerrit Vosselman
applied with care. The lines of the dog-leg in the outer wall are cut precisely
Karbouw Bouwbedrijf, Amersfoort
Clay roof tile
Koramic Migeon Actua, slate engobe
Idiosyncratic use of clay roof tiles Housing project in Bergen op Zoom
Integral restructuring of the ’t Fort and Zeekant districts meant 300
masonry outer walls; the volume built above it is straight-
houses being demolished. Now that phase one is complete, you can see
forward and covered with clay roof tiles. The houses have a
that the new buildings, in a range of architectural styles, have respected
what was already there and accentuated speciﬁc aspects of the area. One
“If you look closely, you will see little jumps in the rooﬂine. That’s
row of houses is a conspicuous example: red roof tiles dominate, just as
where we’re following the lie of the land, which is irregular. The
they did before - but now in a highly idiosyncratic way.
houses are on the edge of an area known as the Brabantse Wal. After that, the land gets lower,” explains Dekkers.
Vertical tiles on a ‘square roof’
There are differences in the heights of the roofs. Dekkers says,
“Using roof tiles is very much part of the surroundings of ’t Fort – Zeekant,”
“For the terraced houses, a rebate can be put in the construc-
explains the architect Fred Dekkers. He and his agency, Hoenders Dekkers
tion wall, making it easy to add another ﬂoor. That was done
Zinsmeister Architekten (HDZ), have been involved in both the ﬁrst and second
straight away for some of the houses. But it is also a very good
phase of this reconstruction project in Bergen op Zoom. Two blocks of ﬂats
solution for future extensions. And the roof tile can simply be
designed by their ofﬁce are being built as part of the second phase. In the ﬁrst
screwed back on again and there will be no problems with
phase, HDZ handled the sheltered housing, town houses and terraced villas.
differences in the way things are ﬁxed.” The windows in the
The shape and appearance of these low-rise buildings ﬁt together well as well
‘roof’ sections have dark frames and are in the tiled areas. “It’s
as ﬁtting in with the existing surrounding buildings.
a logical colour choice for windows in a roof, so we reckoned
Dekkers says, “If you see the area, the surroundings and the original buildings,
it was also right for vertical surfaces with roof tiles,” explains
then red roof tiles dominate. We wanted to do something with that, but we
Dekkers. Just as usual - but unique in its own way.
used a simple square roof – a block shape instead of gabled shapes. The front Project
door is 2.3 metres high, and above it - for the width of the frontage - there is a
Housing project in the ’t Fort-Zeekant district, Bergen op Zoom (The Netherlands)
concealed gutter. Everything above that is covered with Migeon Actua ﬂat tiles from the Koramic range.”
Wonen West Brabant and Rabo Vastgoed
Hoenders Dekkers Zinsmeister Architekten b.v., Delft
Following the lie of the land
Project architects ir. Fred Dekkers, ir. Allard de Goeij,
Despite the differentiation among the houses, the uniform usage of materials
Kaspar Zinsmeister and Marloes Koster Project team
still unites them. The rows of owner-occupied housing, the terraced and semi-
ing. Pim IJsendoorn, ing. Joris de Zeeuw and ir. Inge van Zuijlen
detached houses, the two blocks of sheltered accommodation: they all use the same vocabulary of a single storey and a tiled roof. The ground ﬂoor has
Gebr. van Wanrooij Bouwbedrijven, Geffen
Clay roof tile
Koramic Migeon geon Actua, natural red
> An object worth studying A curved roof rises up from the building plot [Belgium]
The clients had planning permission on a plot of land within a large site.
architect was particularly pleased with the fact that Koramic
They wanted to build a single-family house on it, something that had its
has vertical angle tiles in the programme for the vertical
own unmistakeable identity. Together with the architect Eric Boddaert, the
connection with the wall.
solution they arrived at was a curved roof. Along with parts of the side
To add a spacious effect on the inside of the compact and
walls, it was to be covered in clay roof tiles.
well-insulated house, corner windows were used. The frames are in anthracite-coloured aluminium and the zinc roof gutters
Clay roof tiles on a curved roof
use the same shade, giving the whole a consistent coloration.
For the architect, it was the ﬁrst practical acquaintance with curved roofs using
His conclusion? “Although we employed a more expensive
clay roof tiles. He had also brieﬂy considered a standing seam roof in zinc,
solution for the roof underlay, the clients did get a house that is
but budgetary constraints meant that this was not feasible. Because it is also
full of individuality, for a very affordable price.”
possible to produce perfectly watertight wall cladding using clay roof tiles, they soon settled on this option.
Doubly watertight roof The architect himself gathered together all the information that was required and then studied the details together with the rooﬁng contractor. Finally, they decided to apply an APP bitumen base layer over the entire length of the curved roof. Where the slope becomes very small at the top, they used hardwood tile laths that are resistant to any water penetration. “It is guaranteed 200% watertight. The APP bitumen was an extra expense, but we do like to develop projects that are basically ecologically sound. You could invest a lot of money in improved roof underlay sheets with tongues and grooves to make sure you get a wind-proof roof. But that was not needed here.”
Special vertical angle tiles For the cladding, the architect suggested Narvik Datura roof tiles in slate engobe because he found that a particularly suitable option. The colour seemed obvious, in combination with the red hand-moulded wall bricks. The
Single-family house, Lochristi (Belgium)
Eric Boddaert, Munte
Johan De Vroe NV, Merelbeke
Clay roof tile
Koramic Narvik Datura, slate engobe
Tile-clad maisonettes Housing for a settled Gipsy community in Alsace
One of Alsace’s most important and oldest travelling communities
the excellent thermal insulation. The humidity of the ventilation
(settled since 1930) have swapped their precarious accommodation of
system is adjustable. It utilises the chimney effect of the venti-
huts and caravans for individual environmentally certiﬁed maisonettes.
lated façades and the attic space as a buffer, providing climatic
The architecture juxtaposes the ancestral symbology of the home and
comfort in all seasons. Prior to the laying of the clay roof tiles,
central hearth with all the beneﬁts of a very efﬁcient climate-controlled
thermal solar panels have been installed, embedded into the
concept and a contiguous tiled roof and wall.
south-facing roofs to supply a 200-litre hot water tank.
Recreating a village atmosphere The maisonettes are in small clusters of 5 or 6 around common yards intended
Colours enrich the precision of the architecture
for neighbours and children, separated from access roads, caravan parking
A row of kink tiles covering the intersection of roof and façade
and scrap metal areas. Placing the accommodation around these yards was
ensures continuity of the shape and keeps the roofs and walls
the best way of respecting relationships that were interwoven back when the
watertight. Rainwater simply drains away at the bottom of the
community settled down. The orientation of the two sites allows south-facing
wall. Galvanised steel hoops separate the coloured zones
living rooms, protected against the sun’s rays in summer and making the most
reﬂecting the architectural and functional subdivisions of
of what it provides in winter. The north-facing rooms have smaller openings.
each house. The gables are highlighted by an obliquely cut galvanised steel proﬁle that covers the tops of the gable tiles.
The roofs and walls are covered with ﬂat Actua Duplex clay roof tiles. Each is
This proﬁle also keeps the edges watertight.
distinguished from the next by alternating pairs of roof tile colours: red and grey
The quality of the site has undoubtedly beneﬁted from the
or red and slate. Red for the body of the house; grey and slate deﬁning the
precision of the prefabricated wooden frame (chosen in fact
outer volumes, depending on the type of house (T2 to T5). For the architect,
because of the poor load-carrying capacity of the ground).
M. Laperrelle of Kn’L Architecture, the dialogue maintained continuously from
Laying the clay roof tiles was greatly helped by precise layout
the start of the project until the families moved in was the key element in rede-
plans, unavoidable in this type of project.
veloping the village for its inhabitants and in the success of the social project it Project
was part of.
37 maisonettes, Kingersheim in Alsace (France)
Thermal solar panels embedded into the roofs
Kn’L Architecture, Mathieu Laperrelle and Philippe Koscielski, Rouffach
The living areas in the houses are organised around a wood-burning stove, with a network for distributing sufﬁcient heat to warm the rooms, thanks to
Charles Schoenenberger, Colmar
Clay roof tile
Koramic Actua Duplex, red, grey and slate engobe
Discreet Manor House Charm
Company headquarters styled as an Interwar period villa
www.koramic.com International Magazine Koramic Clay Roof Tiles
Clay Roof Tiles
Published on Aug 10, 2010