Guldberg School
The Guldberg School at Nørrebro was earlier named Sjællandsgades School, which was founded as a Free School in August 1886. The school is one of the cornerstones of the neighbourhood’s role as CO2 demonstration area in connection with the United Nations Climate Change Conference 2009 and the school is hosting the Children’s Climate Conference in connection with the COP15.
The City of Copenhagen has initiated strategic cooperation with a number of Danish enterprises for the purpose of mutual profiling on climate-friendly buildings.
In 2009 Guldberg School has gone through thorough repairs and renovation of the buildings both inside and ouside. There will be new classrooms, a new food stall and a new educational centre. Moreover, a new climate and heating plant will be established in the school.
The school will also improve the indoor climate, the utilization of daylight and natural ventilation. New VELUX roof windows have been installed in the roof and fitted with exterior electrically operated sunscreening to prevent overheating and opening devices for natural ventilation. The roof windows will contribute actively to adjusting the indoor climate when the pupils are gathered for classes and other activities.
At the Guldberg School, VELUX solar collectors have been integrated in the south facing roof area for production of hot water (+ heating of the basement).
Guldberg School
The Guldberg School at Nørrebro was earlier named Sjællandsgades School, which was founded as a Free School in August 1886. The school is one of the cornerstones of the neighbourhood’s role as CO2 demonstration area in connection with the United Nations Climate Change Conference 2009 and the school is hosting the Children’s Climate Conference in connection with the COP15.
The City of Copenhagen has initiated strategic cooperation with a number of Danish enterprises for the purpose of mutual profiling on climate-friendly buildings.
In 2009 Guldberg School has gone through thorough repairs and renovation of the buildings both inside and ouside. There will be new classrooms, a new food stall and a new educational centre. Moreover, a new climate and heating plant will be established in the school.
The school will also improve the indoor climate, the utilization of daylight and natural ventilation. New VELUX roof windows have been installed in the roof and fitted with exterior electrically operated sunscreening to prevent overheating and opening devices for natural ventilation. The roof windows will contribute actively to adjusting the indoor climate when the pupils are gathered for classes and other activities.
At the Guldberg School, VELUX solar collectors have been integrated in the south facing roof area for production of hot water (+ heating of the basement).
Facts
The Guldberg School at Nørrebro was earlier named Sjællandsgades School, which was founded as a Free School in August 1886.
The school is one of the cornerstones of the neighbourhood’s role as CO2 demonstration area in connection with the United Nations Climate Change Conference 2009.
The Challenge
The City of Copenhagen has initiated strategic cooperation with a number of Danish enterprises for the purpose of mutual profiling on climate-friendly buildings.
At the United Nations Climate Change Conference 2009 - COP15 - in Copenhagen, the Guldberg School will host the participants in the children's climate change forum and be visited by politicians and other participants in the climate summit. The school will show and communicate pedagogical experience and methods concerning lessons on climate and energy saving measures and behaviour.
Structural initiatives
Parallel with the pedagogical and teaching measures a number of construction initiatives have been taken during 2009. E.g. VELUX roof windows and VELUX solar collectors have been integrated in the roof and the pupils can follow the consumption of electricity, water and heat on electronic measuring devices on a regular basis.
A Solution
The Guldberg School as a climate school
In connection with the upcoming Climate Change Conference, the City of Copenhagen has initiated strategic cooperation with a number of Danish enterprises for mutual profiling on climate-friendly buildings. The target is to minimise the resources required (and, consequently, the CO2 emission) both during construction and upkeep. The renovation of the school will be part of this cooperation and the school will be a spearhead for possibilities and methods of renovating existing buildings.
In the future the school will, therefore, work with global and local questions about the climate, climate changes, consumption of electricity, water and heat, CO2 emission, environment and recycling.
The educational effort
The climate questions will be part of the educational work in science and social studies. The purpose is to raise children’s and grown-ups’ consciousness to our common responsibility towards reducing energy consumption and to prevent serious climate changes and global warming.
In addition, the experience that teachers and pupils will gain by involving climate questions in the classes will be facilitated to the society. The school will function as a showcase and inspiration for other schools and players in the field.
Climate class at Nørrebro
The climate class will be hosting the delegations of the children’s climate change forum in week 49. Nørrebro will host delegations from North America and South America. Prior to week 49, the climate class and the teachers together will plan the activities for the visits of the delegations. They will talk about how to be a good host and what it means to be with youngsters with a cultural background different from theirs.
Making a campaign about the environment
The teachers will have the pupils make a campaign for the environment enabling them to gain knowledge of the environment and adopt an attitude towards it. They will become active experts and be able to advise other people. To run a good campaign the pupils have to work thoroughly with the subjects, and they will present the work for their parents and other pupils. They will make posters, brochures and slide shows about the climate changes and the environment.
Games in the classes
Through games with focus on the school’s energy consumption, the pupils will learn how their own school can reduce CO2 emissions. By making analyses and strategic choices and finding solutions, they will be able to reduce the energy consumption of the school buildings and make the school more environment-friendly.
Structural initiatives
In 2009 the Guldberg School will go through thorough repairs and renovation of the buildings both inside and outside. There will be new classrooms, a new food stall and a new educational centre. Moreover, a new climate and heating plant will be established in the school. An energy house model will be built will solar cells, rainwater collection, root zone plant etc. Intelligent classrooms will be established with light and indoor climate control. Green IT equipment with low energy consumption and automatic on/off functions will be purchased.
The school will improve the indoor climate, the utilisation of daylight and natural ventilation. New VELUX roof windows will be installed in the roof and fitted with exterior electrically operated sunscreening to prevent overheating and opening devices for natural ventilation. The roof windows will contribute actively to adjusting the indoor climate when the pupils are gathered for classes and other activities.
Active House
An initiative supported by VELUX
An »Active House« meets the future demands for sustainable buildings and has been developed with focus on health and comfort for the people living in it.
It has been designed to interact with local conditions and will to a wide extent use natural resources to make the house CO2 neutral.
Energy challenge
is that buildings consume approximately 40% of all produced energy (European figures). Considering the total energy consumption throughout the whole life cycle of the building is an important tool in the concern for climate changes, security of supply and for reducing global energy consumption.
Indoor Climate challenge
is that we spend 90% of our time indoors, but less than 30% of the building mass contributes to or provides a healthy indoor climate. We humans need fresh air and daylight when we are indoors. It has a positive effect on our health and well-being as well as our ability to learn.
Environment challenge
is that although the challenges we face are global, the local environment differs greatly, and many present solutions are only viable within fixed parameters. We need an open-minded approach to flexible solutions that take into account local cultural and infrastructural differences.
Intelligent houses of the future will be designed to control the indoor climate automatically; smart enough to know when to insulate from cold, when to protect from heat and when to provide ventilation.
Energy
To reduce CO2 emissions and optimise energy performance, the building must be considered as a whole, not just the sum of its components.
Energy efficiency needs to be incorporated into the very design of the building, and the available natural resources, such as sun and air, should be exploited to a maximum.
For instance, windows should be considered as energy contributors. They should be placed strategically to allow for solar heat gain and optimum natural ventilation.
A flexible building envelope will prevent overheating and possible glare in peak periods, so the VELUX roof windows have been fitted with electrically operated awning blinds, controlled either by the users or by the fully automatic control system NV Advance™ from WindowMaster.
VELUX solar collectors can generally provide up to 70% of the energy required to produce domestic hot water. If solar thermal collectors were installed in every home in Europe, the saving could amount to some 20,000,000 tons of oil – equivalent to taking 20 million cars off the road every single year. The sun is the most powerful source of energy we have and we should make maximum use of it.
VELUX solar collectors will be integrated in the south facing roof area of the Guldberg school for production of hot water (+ heating of the basement).
Intelligent houses of the future will be designed to control the indoor climate automatically: smart enough to know when to insulate from cold, when to protect from heat and when to provide ventilation.
Indoor climate
Maximum daylight and ventilation are preconditions for ensuring optimal indoor comfort and minimal energy consumption consistent with future standards. In a world with increasing health problems (partly due to e.g. the rising incidence of allergies), the indoor climate is an essential factor to be considered when designing a building.
Several studies prove that daylight has a positive effect on health, productivity, children’s learning abilities and general well-being. Similarly, fresh air via natural ventilation is vital for producing a healthy indoor climate reducing the consequences of toxic emissions from sources such as electronic devices and chemicals in the building – and thereby minimising the risk of allergies.
Physical well-being, high productivity and learning are related to a healthy indoor climate. Therefore, an optimal indoor climate for pupils and teachers will always be worth while. For example, the Centre for Indoor Climate and Energy at The Technical University of Denmark has shown that pupils in public schools can acquire the same amount of knowledge in six years that they must spend seven years learning today by optimising the indoor climate. The two most important conditions precedent to a pleasant indoor climate is adequate ventilation and a comfortable room temperature.
Automatic control of natural ventilation
The planned complete solution to natural ventilation and control of the room temperature for the Guldberg school project is based on the fully automatic control system NV Advance™ from WindowMaster. It will monitor all strategically placed VELUX roof windows including sunscreening. Window opening will be controlled automatically to optimise the indoor climate proportional to indoor and outdoor temperatures and the use of the building.
Climate zones
The building will be divided into three ventilation zones each with their own sensors and parameters; the climate in the zones will be monitored individually according to wind direction, wind speed and air pressure on the façade as well as indoor and outdoor temperatures and CO2-level. The air pressure on the facades is calculated by CFD calculations carried out specifically for this project. This will result in optimisation of the window openings according to 16 different wind directions and is an important part of the control strategy.
A calendar module controls ventilation according to the season (summer/winter) and time of day (night, morning, daytime) and also optimises the ventilation according to the following ventilation methods:
- Fresh air function – just before lessons begin in the morning or during scheduled brakes, the building is ventilated so the air will feel fresh and pleasant.
- Night cooling – efficient cooling of the thermal mass of the unused building at night to avoid too high day temperatures during summer. The cooling of the building is adapted to the thermal load the day before.
- Pulse ventilation – opening of windows and closing shortly after to allow minimum air change in the building – especially suited for cold periods and to avoid heat loss.
- Trickle ventilation – continuous air change, especially suited for hot periods and to create refreshing airflow.
- User control – if the user wants to take control of the ventilation, it is possible to overrule the control system by switches or the user interfaced NV Visual™.
- Safety function – in case of rain or storm, windows will close for safety reasons.
Apart from precise control of the natural ventilation, other systems such as sunscreening, radiators, mechanical ventilators or light control can also be integrated into the system to ensure optimal indoor climate with minimal energy consumption. This is all controlled by the service module NV Visual™, which enables change of parameters for the system via the Internet. Every zone is visualised in NV Visual™, which also enables easy monitoring of the indoor climate, window openers, radiators etc.
The three zones include monitoring of 14 VELUX INTEGRA® roof windows with sunscreening and the VELUX solar collectors for visualization of the output from the collectors.
The educational effort
The climate issue will be part of the educational work and applied in both natural and social science lessons. The idea is to make the pupils conscious about our mutual responsibility of reducing energy consumption and preventing serious climate changes and global warming.
On the centrally placed touch screen and via IP addresses the pupils can keep track of measurements and they can see details about the solar heat output, power consumption and temperatures – as well as the CO2 level.
Daylight factor
The lowered existing roof windows
with the new smaller windows above
The existing roof windows
Facts
The daylighting performance of the Guldberg School has been specified using the daylight factor (DF) as performance indicator.
The daylight factor is a common and easy-to-use measure for the available amount of daylight in a room. It expresses the percentage of daylight available inside, on a work plane, compared to the amount of daylight available outside the building under known overcast sky conditions. The higher the DF, the more daylight is available in the room. Rooms with an average DF of 2% or more are considered daylit. A room will appear strongly daylit when the average DF is above 5%.
The daylight factor analysis has been performed using computer simulations of radiance. The figures above show the daylight factor levels obtained for two different variants evaluating the impact of the installed roof windows on the finalized design.
The comparison of results shows the positive effects of adding roof windows on the daylight conditions of the third floor. It shows that the roof windows deliver high levels of daylight in the centre part of the room.
| The challenge in the rooms has been to get access to clear view, therefore, the existing windows have been lowered and smaller windows have been installed above the existing ones for ventilation purpose. Futhermore, the windows can be used as escape exits as required by the Danish Building Law. |
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In the future the Guldberg School will work with global and local questions about the climate, climate changes, consumption of electricity, water and heat, CO2 emission, environment and recycling.
Environment
Area renewal
The Ministry of the Interior and Social Affairs and the City of Copenhagen decided the area around the former Sjællandsgade School should be renewed in the period from 2006 to 2010.
The Guldberg School is a result of a merging in 2006 of the schools located at Stevnsgade and Sjællandsgade.
The purpose of area renewal is to support a positive development in selected, problem-stricken areas, including to improve integration and counteract ghetto forming in urban areas. The efforts should contribute to putting an end to the areas’ negative trend where poor physical conditions, social problems and a residential mix with no diversity interact and aggravate each other.
The aim of the project is to make the school and the area around the school attractive, in particular to the ethnic Danes and well-to-do parents who have chosen or intend to choose another school than the local public school.
Citizen-controlled area renewal
It is crucial to a positive development of the area renovation that it is embedded in the local area and controlled by the citizens.
One of the challenges is to base the project on the citizens’ visions through improvements of the physical conditions in the neighbourhood of the school at Sjællandsgade and thereby create a total lift of the area.
In 2008 the City of Copenhagen decided to appoint the Guldberg School as one of the spearheads of the City’s environmental goals and as demo project when the City would be hosting the UN Climate Summit in December 2009.
The implemented environmental initiatives will be relevant to the actual use of the building and its location and status in the area.
VELUX solar collectors will be integrated into the roof and the pupils will be able to follow the consumption of electricity, water and heat on the electronic measuring devices on a regular basis.
VELUX Products
used in in the Guldberg School
VELUX creates better homes with daylight and fresh air through the roof. Our product range includes a variety of roof windows and skylights, along with solutions for flat roofs. In addition, VELUX offers many types of decoration and sunscreening products, roller shutters, installation products, products for remote control and thermal solar panels for installation in roofs. The VELUX Group, which has manufacturing companies in 10 countries and sales companies in just under 40 countries, is one of the strongest brands in the global building materials sector and its products are sold in most parts of the world.
The Group has around 9,000 employees, of which approx. 3,000 are based in Denmark. The VELUX Group is owned by VKR Holding. VKR Holding is a limited company wholly owned by family and foundations. The main shareholders are the charitable VELUX foundations. For more details, visit www.velux.com
Windows
VELUX roof windows. Pivot hung.
Model GGL INTEGRA®. Electrically operated roof window including remote control and rain sensor for automatic closing in case of rain.
VELUX roof windows. Pivot hung.
Model GGL. Energy save.
VELUX roof windows. Top hung.
Model GPL. Energy save. |
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Solar panels
| VELUX solar panels for hot water supply. Model CLI. |
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Sunscreening products
Exterior sunscreening - Electrically
operated awning blinds. Model MML. |
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Valhalsgade Culture Centre
Copenhagen, Denmark
Building owner
City of Copenhagen
Consultant
EKJ Rådgivende ingeniører AS
Architect
NOVA5 arkitekter as
General contractor
MT Højgaard A/S
Suppliers
WindowMaster A/S
Partners
VELUX A/S
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