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  7. Noain City Hall / Zon-e Arquitectos

Noain City Hall / Zon-e Arquitectos

  • 01:00 - 26 July, 2011
Noain City Hall / Zon-e Arquitectos
Noain City Hall / Zon-e Arquitectos, © Pedro Pegenaute
© Pedro Pegenaute

© Pedro Pegenaute © Pedro Pegenaute © Pedro Pegenaute © Pedro Pegenaute +41

From the architect. The new Noain City Hall is equipped with passive and active systems of energy saving. The development of both systems was included from the early stages of design, so that the final outcome of the building is clearly determined by their presence. The project has been subject to an energy rating, resulting in a 60% saving.

© Pedro Pegenaute
© Pedro Pegenaute

Passive Systems

Lighting usually involves the higher energy consumption in an office building. To minimize its impact, the building was constructed with the aim to obtain the highest level of sunlight in all its areas.

© Pedro Pegenaute
© Pedro Pegenaute

The project is conceived as an addition of layers. The center of the building is an empty space, covered by a skylight that introduces northern light to all the circulation spaces. Along this void the main staircase connects the different levels. Around it, a corridor provides access to the offices and meeting rooms. These areas are separated by divisions that do not reach the ceiling, so that the central sunlight enters through the private spaces, as well.

© Pedro Pegenaute
© Pedro Pegenaute

The facades are composed of a translucent double skin. Glass inwards and polycarbonate outwards, separated 25cm. The sunlight, therefore, enters through the whole building envelope. The outer layer is an 'organic' grid of flat steel bars, located between 2 and 3 meters away from the double translucent skin. Horizontal bars serve as ‘brise-soleil’, reducing the impact of summer sun.

© Pedro Pegenaute
© Pedro Pegenaute

Over this grid, creepers grow and, eventually, will cover completely the building. The creepers are deciduous, and they work as a seasonal filter, absorbing solar radiation in summer and allowing it to heat the air chamber between the double skin in winter. During the night, the vegetation reduces radiation losses and prevents from inner temperature drop. Furthermore, the ‘green growing grid’ provides added benefits moistening the environment, softening the temperatures and absorbing CO2.

© Pedro Pegenaute
© Pedro Pegenaute

Active Systems

The main source of energy is geothermal. The building exchanges energy with the ground through heat pumps and a set of probes 100m depth. Geothermal energy is a high performance system. It takes advantage of stability and low thermal oscillation of the ground to exchange heat with it through a network of vertical pipes where water flows. This exchange, allows inter-seasonal energy accumulation, giving heat to the ground in summer and extracting it in winter.

© Pedro Pegenaute
© Pedro Pegenaute

The distribution of cold and heat inside the building is done through a radiant floor. It consists of a network of micro tubes embedded in the floor, turning all the surface in a large heating and cooling system. This system works with lows temperatures of transmission and avoids draughts, ensuring high standards of comfort. A small gas boiler placed on the top of the building improves system performance in those periods when it is necessary to reach required temperatures instantaneously.

3D Section
3D Section

Moreover, the building is equipped with mechanical ventilation, that satisfies the needs of air renewal and modifies its hygrothermic conditions. The top skylight works as a solar chimney, allowing the evacuation of hot air in summer through its motorized grilles. On the other hand, the double skin air chamber has manual grilles beside each window whose manipulation allows to accumulate or dissipate heat.

© Pedro Pegenaute
© Pedro Pegenaute

Finally, all systems, lighting, heating, cooling and ventilation are controlled and regulated by a central computer. It allows fully optimize energy efficiency while meets the required comfort conditions. It should be noted that, in the Noain City Hall, technology is not seen but is perceived through other senses. The organs where functions reside, become kilometres of pipes, whether geothermal extraction, micro-capillaries distribution, telecommunications fiber optic, or lighting electricity.

© Pedro Pegenaute
© Pedro Pegenaute

The user can not see the different systems, which go unnoticed by any visitor. Perhaps he can sense the lighting, temperature or movement sensors embedded in the suspended ceiling, which serve to rationalize energy consumption. All systems are still there, but no longer are the main character of space. The organic metaphor as a body with visible organs with defined functions is replaced by another in which the body is only the skin, the boundary between exterior and a conditioned interior. The organs are not seen, or have been restructured into fuzzy systems of energy management and information. In short, the more advanced technology, the more invisible it is.

Location to be used only as a reference. It could indicate city/country but not exact address. Cite: "Noain City Hall / Zon-e Arquitectos" 26 Jul 2011. ArchDaily. Accessed . <http://www.archdaily.com/153230/noain-city-hall-zon-e-arquitectos/>
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30 Comments

Yi Yoon · August 08, 2011

???. ??? ????? ??? ?? ???? ?????. ??? ????? ? ? ??? ???. Noain City Hall / Zon-e Arquitectos | ArchDaily http://t.co/jz3HJWo via @archdaily

Stephen Bolling · July 28, 2011

Futuristic Energy-Saving City Hall. http://bit.ly/oXBuop

Nicholas Patten · July 27, 2011

Noain City Hall. http://bit.ly/pAdBSu

katieb · July 27, 2011

Parthenocissus henryana tricuspidata! Very useful plant. I have been hoping to see a building with exterior designed to host it. Wonderful to see.

It would be interesting to see data on the insolation before it grows out and after.

Here where I am (Portland, Oregon, US) the transportation department of the region is using it on the sound walls along highways and light rail lines. The urban cooling benefit, and air and water quality benefits are most valuable in the larger picture, but they plant it most immediately for beautification and to discourage graffiti.

???? · July 27, 2011

????????????????n?http://bit.ly/pGNCKw

Meshari Almurshed · July 27, 2011

nice building :)

believe it or not…. this is the city hall (baladiyya) in a financial struggled country

http://t.co/9FU4noY

Sudar Khadka · July 27, 2011

I doubt the horizontal flat bars would serve as a sufficient sun shading device as is; they are too widely spaced. Maybe when the vegetation grows over them, it would be possible.

archi · July 28, 2011 08:41 AM

I think that's the point.

Natalia · July 27, 2011

Noain City Hall / Zon-e Arquitectos | ArchDaily http://t.co/0mJaqEu via @archdaily

I, Architect. · July 27, 2011

#iaflash Noain City Hall / Zon-e Arquitectos _ http://t.co/R9sEXhG #architecture #photography http://bit.ly/qS0lRZ

Esteban Paredes · July 27, 2011

edificio con sistemas pasivos
http://t.co/IT2OUdk

Erica Riva · July 27, 2011

Noain City Hall / Zon-e Arquitectos _ http://t.co/R9sEXhG #architecture #photography

Stephen Bolling · July 27, 2011

Futuristic, Plant-Covered, Passive-Energy-Saving City Hall. http://bit.ly/oXBuop

ZenRattanapraphasilp · July 27, 2011

Noain City Hall / Zon-e Arquitectos http://archdai.ly/pB2HcE #architecture

André Amaral · July 27, 2011

Noain City Hall / Zon-e Arquitectos | ArchDaily http://t.co/WhGJ1F8 via @archdaily

linetrio · July 27, 2011

Noain City Hall / Zon-e Arquitectos http://archdai.ly/pB2HcE #architecture

Guido Schröpel · July 26, 2011

ARCHITEKTUR: Zon-e Arquitectos: Stadthalle in Navarra als begrünter Drops - http://t.co/0J4njc2

yasushi nakamura · July 26, 2011

????????????????????????????http://t.co/3GE5cvn???????????...

Robert Remiker · July 26, 2011

Active, Passive, Exciting. Noain City Hall / Zon-e Arquitectos | ArchDaily http://t.co/jxXw6cz via @archdaily #sustainability #architecture

Piropos · July 26, 2011

Noain City Hall / Zon-e Arquitectos http://archdai.ly/pB2HcE #architecture

Cabelíssima · July 26, 2011

Isso sim é prefeitura
Noain City Hall / Zon-e Arquitectos | ArchDaily http://t.co/rqxbNH9 via @archdaily

p/a/n/g/e/r/a/n · July 26, 2011

Noain City Hall / Zon-e Arquitectos via ArchDaily - © Pedro Pegenaute Architects: Zon-e Arquitectos ... http://tinyurl.com/3s8mqom

sun raven · July 26, 2011

Noain City Hall / Zon-e Arquitectos | ArchDaily: The main source of energy is geothermal. The building exchanges... http://bit.ly/nrnPsU

Barry Maguire · July 26, 2011

Noain City Hall / Zon-e Arquitectos via ArchDaily - © Pedro Pegenaute Architects: Zon-e Arquitectos ... http://tinyurl.com/3s8mqom

arquiRED Mexico · July 26, 2011

Noain City Hall / Zon-e Arquitectos http://archdai.ly/pB2HcE #architecture

arquiRED Mexico · July 26, 2011

Noain City Hall / Zon-e Arquitectos http://archdai.ly/pB2HcE #architecture

Jeff Smith · July 26, 2011

Noain City Hall / Zon-e Arquitectos http://archdai.ly/pB2HcE #architecture

Jeff Smith · July 26, 2011

Noain City Hall / Zon-e Arquitectos http://archdai.ly/pB2HcE #architecture

GR2TF · July 26, 2011

Noain City Hall / Zon-e Arquitectos: © Pedro PegenauteArchitects: Zon-e Arquitectos Location: Navarra, Spain Pro... http://bit.ly/psWw1j

GR2TF · July 26, 2011

Noain City Hall / Zon-e Arquitectos: © Pedro PegenauteArchitects: Zon-e Arquitectos Location: Navarra, Spain Pro... http://bit.ly/psWw1j

Erik Joya · July 26, 2011

Noain City Hall / Zon-e Arquitectos: © Pedro Pegenaute Architects: Zon-e Arquitectos Location… http://goo.gl/fb/Xjfsv

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© Pedro Pegenaute

Noain 市政厅 / Zon-e Arquitectos