Architecture that Looks Good Enough to Eat
With the construction of a new butcher’s shop
in Griesheim, Hesse, with a party service, snacks and retail sales, the
client, Thiemo Hamm, set himself an ambitious goal: a sensible and commercial
combination of a rationalised operation production with refrigeration
tasks, a representative and social area and an attractive sales and snack
area. The client also considered design accents to be important in the
centre of a district characterised by typical commercial buildings. On
the one hand, the building was required to be distinguished from the ‘cubist’
commercial development in close proximity to it; on the other hand, however,
it was not intended to offend customers and citizens with a monumental,
palatial ideology. Of course, the building costs were also required to
be kept within economical limits.
In every respect, the planning concept for Thiemo Hamm and team of 65
employees was realised because the sales, snacks and party service for
the delicious sausage and meat specialities is going as well as hoped
for, while the operation production costs are kept within the low calculated
limits from a business management point of view.
Illustration 1 : Eastern view of the two-storey
production and sales building of the Metzgerei Hamm: Planning and complete
execution: Ganz Kühlhausbau GmbH, Hanover, Germany
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Because of the different functional focuses of the
building, the client and the planner decided on a mixed construction according
to the principle of Walter Gropius, an architect and founder of the Bauhaus
group, that “form follows function”. The sales and office areas
were executed as a solid two-storey building and the whole production
and the supply area for the party service as an energy-saving sandwich
panel construction.
While a massively inclined gable roof, which is turned by 90° on its
main axis and is hipped at the front, was placed on the solid, two-storey
sales and office area, the production area was deliberately given a differently
shaped gable, a more inclined roof and a different colour. The classic
red tiles of the solid roof are contrasted with the warm yellow of the
sandwich panel roof, which is used as an advertising surface for the pink-coloured
trademark of Hamm, the party professional.
Illustration 2 : Sales, office and social areas
are located in the solid building (left); an energy saving sandwich panel
construction was chosen for the production area, with refrigeration and
storage (right).
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The colour concept of the interior is also implemented
on the facade of the solid section of the building, with turquoise wall
edgings and construction panels in the same colour. The interior of the
sales and snack area was designed in close co-operation with Haeku, the
shop-building specialist.
Illustration 3 : Interior design of the sales
area
Illustration 4: Interior design of the sales area
Illustration 5 : Interior design of the office
area
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The staircase is arranged between the production
section and the sales area in such a way that it is accessible both to
people from outside and as a working route between sales, office and production
operation in a functional and time saving fashion.
Illustration 6 : Arrangement of the staircase
between the production and sales sections
Illustration 7 Connections of the sandwich panel
constructions of facade and roof to the solid staircase
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As can clearly be seen in Illustration 7, the sandwich
panel constructions of the roof and the facade of the production operation
have to a large extent been connected directly to the solid staircase.
Production Section: Business Management to
the Fore
Business management considerations played a key role in the decision for
sandwich panel construction. The major part of the five production departments
(Carving, Production, Hot and Cold Food, Vacuum Packing / Despatch) must
continuously be refrigerated. For this reason, only a structure that was
able to demonstrate a high level of energy conservation and air and steam
insulation for the whole surface of the building came into consideration.
There were also high requirements in accordance with the applicable EC
guidelines for the meat industry and the hygiene safety of the components
used.
Illustration 8 : Ground plan of Ground Floor with
sales area, production operation with refrigerator rooms and party supply
- area 1,200 m²
Illustration 9 : Ground plan of Upper Floor with
office area, social section, store and technical rooms for refrigeration
- area 1,200 m²
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The load bearing structure for the two-storey production
area is a mixed construction made of steel with a solid intermediate ceiling.
The light grey wall and the yellow roof panels (System ems Insulating
Panels) with a system width of 1.176 mm (wall) and 1.000 (roof) are fastened
to this load bearing structure. The ceiling has been hung below the massive
intermediate ceiling in the production area with sandwich panels. The
‘crawling’ room between the solid ceiling and the ceiling hanging
from it is used as an installation space for various supply pipes. It
was possible to use the wall surfaces, which are up to 6 m high in the
core area, for generous built-in shelving.
One of the significant advantages of these sandwich panels results from
the polyurethane rigid foam fixed between two steel or aluminium facings.
It offers the most effective thermal insulation of all insulating materials
known to date. Eighty millimetre thick panels with a k value of 0.30 W/m²K
have been used for the roof and walls. Another advantage is the connection
technology of these panels, sealed against air and steam, which is achieved
through a special tongue and groove formation. The physical construction
quality of this building shell will guarantee Thiemo Hamm an outstandingly
economical use of refrigeration energy.
Illustration 10 : Air and water sealed connection
principle of the sandwich panels with double tongue and double groove
for cold store walls (hollow chamber section as a visual conclusion to
the component groove)
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Door Concept in the Refrigerator and Deep Freezing
Area
The cost of refrigerating energy is four times higher than the cost of
heating energy. Of course, for a meat processing operation, it is just
as important to ensure the perfect quality of the chilled or frozen goods.
There are also the requirements for fast and smooth processes in the case
of consignment, traffic between the production departments and delivery.
For these reasons, an optimal conception of the doors in the refrigerator
and deep freeze was absolutely necessary.
Illustration 11 Revolving cold store doors closing
tight on all sides with 80 mm thick core insulation made of rigid foam
polyurethane for the door and a correspondingly insulated frame will ensure
economical processes in the Hamm production operation.
Here, the client was able to rely on the experience
of Ganz cold store construction completely. All revolving and sliding
doors in the production area are high quality sandwich panel constructions
in doors equipped with polyurethane rigid foam cores 60 to 140 mm thick
(System ems Insulating Doors). The ceiling plates are made of steel or
stainless steel and will satisfy the highest requirements for corrosion
protection and hygiene conditions. Both revolving and sliding doors can
be sealed on all sides because of a special sealing system. A fully matured
and ergonomic hinge mechanism ensures simple, secure and energy saving
operation.
Illustration 12 Revolving door for freezer up
to -28° C (System ems GTM) with 125 mm core insulation in the door
and electrical frame
Illustration 13 Installation of a freezer revolving
door for sandwich panel construction up to -28°C (System ems GTM)
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Exact in the Cost Plan and the Commercial Expectation
The intensive pre-planning by Ganz Kühlhaus GmbH began with conceptual
studies, which had already flowed into a design that had been agreed with
the client and with different factories or suppliers in all points after
a few weeks. The contractual building procedures, planning of execution
and detail, building supervision and general implementation also lay within
the area of responsibility of the cold store specialists. The client was
able to officially open his new company building after seven months of
construction activity. On the opening day, the client was particularly
glad that the planned construction costs had not been exceeded at all.
Following a year of successful operation Theimo Hamm was also finally
convinced that the operating costs moved exactly within the planning framework.
Illustration 14 Thiemo Hamm, a contented client
Illustration 15 : Hamm butcher’s, snack and
party service: architecture close to the client with optimum business
management
And the most important benefit of the new building
for the client is that customers like coming to it and in large numbers.
Although this is certainly an affirmation of the quality of Hamm’s
meat and sausage goods, it is also confirmation of the acceptance of a
successful design and functional construction concept.
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Authors: Rolf Koschade - Klaus Kämpfer
Galileo – Kreatives
Bauen mit Sandwich
Postfach 1164
D-94451 Deggendorf
www.sandwichbau.de
galileo@sandwichbau.de
Associate Companies of
„Galileo – Kreatives Bauen mit Sandwich“:
Elastogran GmbH
ems-Isoliertüren Mickeleit GmbH & Co. KG
Hoesch Siegerlandwerke GmbH
HUNTSMAN Polyurethanes (Germany) GmbH
Metecno Bausysteme GmbH
Romakowski GmbH & Co. KG
voestalpine Stahl GmbH
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