Dr. Gabriele Husmann, Head of EU-Coordination
Fleethörn 9, 24103 Kiel, Germany
Phone: +49 431-901-1106 Fax: +49 431-901-62745
- Kiel/Germany„Innovative Bauausstellung InBA was a
complete success“ was the title of the article
in newspaper "Kieler Nachrichten" on 18.10.2008.
And federal state capital Kiel could not agree more
on this. The development process of InBA had given
the city many important impulses, which became obvious
during the exhibition runtime and numerous events.
From 5th till 28th of September 2008 Kiel, as the
city of climate protection, laid the main emphasis
on energy saving construction: Innovative Bauausstellung
(InBA)® Kiel 2008 provided insight in sustainable
construction – from practical experience for
During three exhibition weeks 20 InBA projects could
Buildings of all kinds, such as new and refurbished
buildings, dwelling houses, commercial, public and
special construction exemplary show, how construction
can be become more sustainable with help of energy
efficiency and usage of renewable energies.
Thanks to participation
of engaged builder-owners, who modernized or new constructed
their buildings according to high energy standards
this and last year, there was developed a fine composition
of innovative buildings: apartment buildings, terraced
houses, apartments, a consumer market, a sports hall
and a multifunctional building. All in all 28 accommodation
units were refurbished, 160 accommodation units and
about 15.000 m² of useful area as commercial
and office area were newly built.
It is noteworthy that
many of these projects were considerably more energy
optimized than it was originally planned. Among these
there is newly constructed Famila department store
Kiel-Wik, the science centre Kiel, sports hall Schilksee,
the energetical refurbishment projects in the streets
Bräutigamweg and Kanalstraße.
When the decision for InBA was made by council board
in 2006, increasing energy prices and consequences
of climate change were not such important issues for
many people as they are today. The 1st Kiel Climate
Day in the city hall of Kiel in the beginning of 2008
demonstrated with help of over 1000 visitors the rising
interest of citizens, who informed themselves on such
issues as energy efficiency, energy saving and renewable
The InBA concept of
consulting, professional events and “projects-to-touch”
were well received. During over 60 events, excursions
and guided tours the interested visitors had the possibility
to ask questions, receive technological explanations
and experience energy saving construction. Over 2.500
national and international visitors took advantage
of these offers.
The opening ceremony
in café Engelchen in the shopping centre Sophienhof
attracted over 150 guests. On the occasion of the
World Children’s Day participation activities
for children and their parents took place on various
stands in Sophienhof. Beside tinkering with environment
friendly materials the issue of energy was accessible
to children. Children, parents and organization were
very excited. The experts’ forums „Sanieren
& Sparen“ (refurbish and save) und „Best-practice-objects“
presented InBA projects with speeches. The projects
could be visited on site later.
Central InBA information
stand in the central shopping centre of Kiel, “Sophienhof”,
was received particularly well. There energy consultants
from Kiel were available for questions of actual and
aspiring house owners every afternoon.
The 5th Kiel Solar
Days took place together with InBA. In „Sophienhof“
took place presentation of Kiel enterprises, which
belong to craftsmen association „Fair-Play-Wärme“
(fair-play-warmth), union of members of the trade
(sanitary plumbing – heating –climate),
as well as further guilds and handicraft enterprises
with their projects. The approved fair of Kiel handicraft
was supplemented by firms and products from the sphere
of energy saving construction on the occasion of InBA
2008. Many thousands of discussions, consultations
and first contacts provided for even more attention
towards energy efficient construction.
As first from the eight partner cities, the federal
state capital Kiel conducted the largest building
exhibition within the framework of the EU project
REBECEE. The incentives, provided by InBA to the city,
have further effect and they were actively picked
up in order to use the momentum of InBA and make Kiel
more environment friendly.
for more information please visit
The Innovative Building Exhibition
(InBa) Kiel 2008 features new and modernized building
projects employing high energy efficiency standards
and the use of renewable energy with the goal being
a CO2-neutral heat supply. Resulting cost benefit
comparisons will demonstrate the immediate transferability
of the methods and systems used in these buildings
for future project. The exhibition buildings will
demonstrate, how energy-saving and resources-conservation
concepts can be planned and realized in urban areas.
The Innovative Building Exhibition Kiel 2008 will take place in September 2008 and different buildings will present: New Build Living, Modernized Living, Public Buildings, Commercial Buildings and Special Uses.
An open procedure is to attract investors, housing enterprises, builders, house manufacturers, architects and engineers to bring in suitable projects. The InBA Kiel 2008 provides the following advantages to the participants:
- Extended technical training in the form of seminars and workshops.
- Quality assurance of all participating projects
- Advertising and marketing opportunities for market partners of all industries.
The new building projects must meet the KfW Energy Saving House 40-Standard (the Passive House standard is favoured). All projects must prove the final airtightness of the building envelope with a “Blower Door” test.
Modernization projects must achieve the new construction standard of the EnEV of 2.12.2004.
The use of renewable
energy and/or district cogeneration heat must
provide for the majority of heating demand (space
and water heating) up to 100%. The use of a variety
of energy supply solutions (e.g. fermentation gas,
wood pellets with Solarthermie or terrestrial heat,
Photovoltaik) is possible and participants can choose
For projects deviating from these guildelines appropriate
reference values are to be set in accordance with
Living and Working
Ecological and social multigenerational
dwelling project „Living
and Working at Rathausturm“ („Wohnen
und Arbeiten am Rathausturm“) in Rathausstraße,
which is in the construction phase at the moment will
be perfomed according to the KfW40-House standards.
The energy supply will be secured by community heating;
the usage of photovoltaic will be aimed at. The location
in the city centre offers also to those without a
car or with limited mobility short routes to authority
offices, cultural facilities and shopping possibilities.
build apartment block "Gerhardschule"
Attractive modern building design
with interesting floor plans, house with 19 freehold
apartments is built in conventional massive construction
All the apartments are orientated to the south or
west and have got a terrace, a balcony or a roof terrace
in stacked storey. Two elevator systems, which run
from cellar or underground garage to stacked storey,
are located in the building, so that all the apartments
can be reached without using the stairs.
A cellar room belongs to every apartment and, if required,
a parking lot in the underground garage.
All the apartments are provided with built-in kitchen,
high-quality tiling in bathroom and kitchen, ingrain
wallpaper as well as carpeting; parquet floor is planned
in living room as a standard feature.
Besides, all the apartments receive underfloor heating.
The project will have KfW 40-standard. The energy
supply for heat and warm water will be secured by
residential area "Alte Gärtnerei" /
Steenbeker Weg / Projensdorf
Over 80 housing projects are constructed
by Ing.Haus in the construction area in Kiel-Projensdorf
at Steenbeker Weg. There are detached
and semi-detached, as well as terraced houses with
cellar and corner houses.
The buildings are created in massive construction
method with plaster and facing stones.
All the buildings have two storeys with additionally
extended or extendable attic floor. The house type
Tetra X is provided with a guest bathroom. The cellar
has got about 40m² of floor space. Interior paintwork,
carpeting, tiling, built-in kitchen and outdoor garden
are on one’s own account.
Paving of the parking space, access paths and terrace,
as well as top soil cover belong to basic lay-out.
The attic floor is fully developed. The building has
got 5 rooms, as well as sufficient storeroom and,
moreover, a large roof terrace.
Local heat for hot water and heating from a communal
heating power station, which is run by rapeseed oil.
Solar panels or controlled ventilation system with
waste heat recovery for domestic water heating is
also possible at extra cost.
of twelve flats in Bräutigamweg
One further project will be modernisation
of twelve flats in Bräutigamweg of the
residential area construction company Hermann und
Paul Frank mbH & Co. KG. Within the framework
of this project, the whole casing of the building
will be wrapped in heat insulation, the heating unit
will be renewed and solar thermal unit for warm water
supply will installed on the roof. The comprehensive
modernization also includes installation of a ventilation
unit with heat recovery in order to reduce ventilation
heat losses in the flats.
Solid building of brickwork and mansard
roof and wood beam ceiling built in 1913 has got 460
m2 living space after reconstruction.
Prominent, elevated position on Nord-Ostsee-Kanal,
creates nice living space orientated to the south
with view to the canal.
Apartments with 3-4 rooms have got ceiling height
of ca. 3,0 m, the modernisation includes installation
of new baths, new larger balconies and high-quality
front garden design.
• Replacement of oil heating
installation, radiators and decentralized electrical
hot water preparation
• Insulation and waterproofing of the entire
building envelope, prevention/ reduction of thermal
• Installation of heating system as heat pump
air/ water when the garden is accessible eventually
brine / water (geothermy), installation of wall surface
heating with max- 40° supply temperature.
• high quality insulated pipelines, efficient
electrically regulated pumps, hydr. balancing
• Installation of controlled ventilation system
with at least 90 % waste heat recovery, usage of waste
heat for domestic water heating or brine feed-in
• Solar recovery through large, south orientated
• Support of drinking water heating by thermal
• Support of power supply (heat pump) by photovoltaic
system (thus almost completely CO²- neutral!)
• Installation of passive house components (windows,
roof insulation, ventilation systems, solar systems)
Energy standard before:
Required annual heat consumption 123,40 kWh/m²a
Primary energy demand 516,03 kWh/m²a
Energy standard afterwards:
Required annual heat consumption 28,84 kWh/m²a
(- 77 %) Primary energy demand 36,93 kWh/m²a
(- 93 %)
Decrease in primary energy demand
according to ENEV
by 55 %, CO²-saving 35 t per year.
Refurbishment and Modernisation
Mid-terrace house/ small city mansion
has got living space of 158m². This terraced
house was built in residential area Kiel-Südfriedhof,
in Lantziusstraße in 1936. It is a massive construction
house with plaster facade. The goal of the refurbishment
is to achieve the level that is 30% better then today’s
minimum standard for new building according to EnEV.
• exterior walls: 14 cm WDVS WLG 035
• roof area: 24 cm mineral wool WLG 035
• attic ceiling: 36 cm mineral wool WLG 035
• Window: Uw 1,12 W/(m²K) spume plastic
Uf = 0,9 W/(m²K) Glass Ug= 1,1 W/(m²K)
• cellar ceiling: 8 cm inside insulation LG
• solar panels for hot water preparation und
• pellet oven for supply of heating and hot
• Gas heating value thermo manually separately
activatable for domestic water heating for temperatures
under – 7° Celsius.
Attic storey and staircase to the garden are modernised.
Until now heating and hot water preparation
was made by gas water heater.
The whole heating system is to be changed, so that
500l heating buffer storage and already existing 3001
hot water tank are supplied by pellet oven and tubular
collectors / solar system (15,8 m²).
The gas water heater can by manually activated in
case of very low outside temperatures in order to
produce the required residual heat or to supply basic
temperature in case of longer absence in winter.
Radiator valves and thermostats shall be adapted so,
that control accuracy of 1 Kelvin could be achieved.
Hydraulic balancing of the heating system shall be
carried out according to calculation specifications.
Heat distribution system is to be insulated.
half of the semi-detached house was built in 1938
and before the modernisation had only uninsulated
building envelope. The building volume is 732 m³
(floor space according to EnEV A: 234 m²).
Both apartments, one on the ground floor and one on
the second floor, dispose of 87m².
The attic floor is not developed at the moment, however,
it is planned to do. The house is has got cellar.
In order to preserve the exterior look of the house,
the newly insulated facade was additionally clad with
facing stones. Old windows were substituted by high-quality
included the following measures:
• insulation of the exterior surface with WDVS
120 mm + facing bricks
• insulation of the cellar ceiling with PUR
• heat insulation window (U-Value: 0,8 W/m²K,
Glass U-Value 0,5 W/m²K)
The insulation measures
were carried out in 2007.
Solar thermal system with the area of 10,5 m²
serves for hot water preparation and heating backup.
Pellet boiler is additionally planned.
It is a freestanding residential
building built in 1925 with uninsulated building envelope.
Due to artistic reasons exterior insulation is impossible
and not desired by the owner.
• Internal insulation
of exterior walls with renewable materials (hemp)
60mm, insulation of the top storey ceiling with renewable
materials (hemp) 270 mm,
• new thermo-windows
(U-value: 1,21 / U-value Glass: 1,1 W/m²K).
Solar thermal system with 20m² of collector area
and 2000 litre buffer storage are used for hot water
preparation and heating backup.
It is planned to install pellet-boiler for support
(alternative: gas heating value). In order to achieve
high solar heating proportion, hypothermal-wall–heating
system shall be installed.
It is large scale banding heating with comparatively
low outgoing temperature.
Science Centre Kiel is the focal
point of the science park that is located on former
industrial site near the university.
Central goal of the project is the optimization of
research and knowledge transfer between innovative
companies and science.
The Centre is divided into management, cooperation
and presentation sectors. In the management sector
central services for innovation promotion and technology
transfer are provided.
The cooperation sector, as the core of the Centre,
offers areas for firms that work on research and development
projects in cooperation with universities.
Presentation area in the ground floor provides numerous
offers for conferences, lectures and exhibitions.
The building leads the ambient space into the building
by its expressive projection and transparency. It
opens up, invites and forms a room entity of forecourt,
foyer and public usage of the ground floor.
Wide projection, powerful slightly sloped concrete
pillars and views into the building form the character
of the building and symbolize the objective of the
Science Centre as innovative, modern meeting and work
place in contemporary architecture language.
Due to its almost cubic shape the structure has got
very fortunate A/V- proportion, so that the envelope
area is minimized. Exterior walls of the house consist
on the one hand of closed surface with ferroconcrete
walls and decorative tile brickwork, on the other
hand of post-and-rail-facade with highly insulated
sections with heat-absorbing glass, light guiding
glasses and vacuum insulation panels. Photo-voltaic
system from standard units with crystalline cells
is planned, that shall be composed together to large-area
sloped „sun sails“ and installed on flat
roof with steel substructure.
total area: ca. 180 m2
total output: ca. 25 kWp
energy output: ca. 21.000 kWh per year
Heat supply for heating of the building
takes place through connection to district heating
network of public services Kiel, with combined heat
and power generation.
Sports hall Schilksee
A special project is the sports
hall Schilksee, which has got KfW energy saving
house 40 standard. Wood-pellet heating shall be used
for of heating and drinking warm water supply in the
sports hall. Suitable for a passive house ventilation
unit with heat recovery provides for humidity removal
in secondary rooms and good quality of compartment
air in the hall. The roof can be used for photovoltaic
units of external users, the necessary chutes will
be hold out.
New building of Famila department
store in Kiel Wik with access from Prinz-Heinrich-Straße.
• in direction of parking lot partially two-storied
• the planned construction method:
Ferroconcrete carcass with infill brickwork and trapeze
tin roof, facade design with facing stones, curtain-type
aluminium panels and post-and-rail-facade
• Energy saving due to raised insulation standard
• Development of office block in the upper floor
as „passive house“
Usage of waste heat of frozen and refrigerator food
compartments for heating of useful areas
• energy efficient illumination
• additionally required heat through the ground
• in summer cooling of useful area through the
• Ventilation system with highly efficient waste
heat recovery, adaptation of air volume to current
• Installation of the photovoltaic system on