Demonstration buildings CEC5

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Seven demonstration buildings with a high sustainable construction standard in the public sector are a core output of the CEC5 project.

CEC5 Summary of 7 Demonstration Buildings

Criteria for demonstration buildings

The seven buildings have been or are constructed or refurbished based on jointly defined selection criteria, such as:

  • Passive house standard
  • Only renewable energy used
  • Innovative approach
  • Representative presentation for the public
  • Intensity of passenger traffic
  • Possibility of field trips, tours, exhibitions

You can download the full criteria list here: Criteria list for demonstrationbuildings (PDF)

In the following, the seven demonstration buildings are presented shortly. You can also download posters of the demonstration buildings.

AUSTRIA: LifeCycle Tower ONE>

LifeCycle Tower ONE, Dornbirn, world's first hybrid wood passive house building with a modular construction system

The 27 meter high LifeCycle Tower ONE was opened in Nov. 2012 only after a year of construction. "Itis the world's first hybrid wood passive house building with a modular construction system. Wood is a renewable resource that can be applied toresource-efficient building materials. We tried to develop a simple construction system that uses as much wood as possible" says builder Hubert Rhomberg. For two years, a team of architects and builders has developed a module construction. Ceiling and facade elements were pre-fabricated and delivered to the site ready to fix. So it was possible to assemble the eight floors of the office building in just eight days. Due to the system design, in comparison to conventional buildings the implementation of structural work, facade and building itself is twice as fast for such hybrid wood passive houses.

The building is a demonstration building for the urban wood construction and consists of 8 floor modules. It is an energy plus building and is characterized by a high environmental standard. The Life Cycle Tower is a concept which will set up international standards because its basic material, is a renewable material that grows again quickly: wood.

Download of LifeCycle Tower ONE poster

CZECH REPUBLIC: Social Care Institution, Lidman

Social care institution, Lidman, a new constructed highly sustainable building

The building is situated in the location of the Institute for Social Care in Lidmaň. It replaced a previously existing building, which did not comply with the present construction, operational, sanitary, fire and esthetical demands anymore. The new building is a passive house built out of traditional brick materials with insulated folder. The heating is assured by means of a heat pump. The building serves for accommodation of the clients of the Institute for Social Care, Lidmaň. All construction criteria were included. The construction began in July 2012 and was completed in October 2013. Technologies and measures installed aim at reaching energy savings and lowering energy demands of the future building:

Insulation folder around the building, which is composed of warming system on the basis of mineral insulation and of windows with triple insulation glass; Floor equipped with a three-layer thermal insulation and heat line; Heating of the building is ensured by means of two air-water heat pumps that enable regulated ventilation with heat recuperation roofing of the building.

The new social care institution building is designed as a hydroinsulating photovoltaic foil which generates electric power from solar energy. This innovative solution makes it possible to integrate thin-sized photovoltaic modules into the roof covering and thus to provide reliable protection from weather impacts in combination with achieving highly effective production of electric power from renewable source, while minimising performance losses. Such a technology can be used in a wide range of building types, including those that are not fit for installation of conventional solar panels. Works continue.

Download of Lidman social care institution poster

ITALY: Educational Activities Center of Udine Municipality,(Old municipal slaughter house)

The Italian demonstration building is located in a municipal slaughterhouse area


The Italian demonstration buildings is situated in the city of Udine inside the old municipal slaughterhouse area. Built in 1923, is declared a cultural and architectural asset by national Ministry of culture. The overall intervention aim is the recovery of the complex to host a social and cultural activities centre. The demonstration building will host a didactic area for children with a video and a sound library, a conference hall labs, bookshops, a bar.

Low energy and demonstration characteristics: Installation of a general energy management system; Improvement of wall insulation from inside; Low temperature heating systems; Innovative photovoltaic plant; Energy saving lights and water saving measures; Exhibition to explain the features of the PV plant; Display to monitor and show the energy produced.

The work on the building started in September 2012 after one and a half year of planning and designing.

Download of Old municipal slaughterhouse poster

GERMANY: Gym and Cafeteria for Primary School Gartenstraße

The demonstration building in Ludwigsburg is part of a primary school and currently under construction.

The German demonstration building is situated in the inner ity of Ludwigsburg and part of a primary school area. As part of a new development of the school are, the Gartenstraße 14 will be a new construction. The construction works started in August 2013. The demonstration building will include a cafeteria and a gym. It took two years to design and plan the building. Parts and installations will meet high energy standards of a passive house or a nearly zero energy building.

Download Gartenstraße 14 Ludwigsburg poster

POLAND: EE and RES Center

The Polish demonstration building is a RES centre for students

The Mechanical School Complex was chosen for the intervention in the city of Bydgoszcz. It will function as a RES centre. The city is the owner of the school territory and will be the owner of the future building to be constructed. The choice of the future passive building location was based upon sustainability aspects: it has a high visibility and will probably have a very high number of visitors. The RES centre will be usedby the school students and especially by those who will start the new specialization in renewable energy resources. The RES centre will be available to the public and promoted among stakeholders. It is a first endeavour like this in Bydgoszcz. Design and work planning started in August 2012 and was finalized in December 2012.

Download of RES centre Bydgoszcz poster

SLOVENIA: Primary school in Most na Soči

The Slovenian demonstration building is a refurbishment of Primary school in Most na Soči.

The selected building is a gym, as a part of the primary school in the town Most na Soci. The main problem of the performance of the building is the outer insulation of the walls and the roof (according to the energy audit). All the planning procedures were done in a short time allowing the public procurement to be finished before summer. There was the need that all the major works have to be finalised within July and August 2014 during the time of summer holidays.

The most important sustainability factor is the use of the refurbished area. The mission of the Soca valley development centre (PP12) is supporting sustainability of the regions on all levels and sustainable buildings are one of the major topics already. The primary school of Most na Soci is known for its cooperation in national and international innovative schemes following sustainability principles and this will be an added value also for bilaterally prepared exhibition/dissemination system.


SLOVAKIA: Secondary Technical School, Senica

The Slovakian demonstration building is part of a secondary school

The demonstration building is situated in the building complex of Secondary technical school in Senica city. The school itself is set up by Trnava Self – Governing Region as allowance organisation. We intend to refurbish existing heating system and system for heat water generation currently using natural gas and to install renewable energy sources (RES). The demonstration building serves for educational purposes, for food preparation and serving as well as for various school demonstration and promotion events. The planning started in summer 2012 and was completed in December 2013.

Download of SOS Senica demonstration building poster