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Oslo Airport: Focus on environmental solutions

The new Oslo Airport expansion is completed, and Norway’s main airport has applied new and innovative solutions to reduce its environmental emissions.
Avinor Oslo Airport has expanded to become almost twice the size it used to be. The new premises, amounting to 117,000 square metres, are ready for the official opening on 27 April 2017. Environment and emissions have been key elements in both the planning and building process. The new buildings have received international BREEAM Excellent environmental certification – by a large margin!
“We are committed to work as climate and environmentally friendly as possible, and this has been an important requirement during the entire development project”, says director of terminal development and operations.
Environmentally friendly building materials
The expansion of Oslo Airport has been a model project for climate and environmentally friendly building materials. Extensive use of wood has been a deliberate climate choice. The supporting beams for the roof and floor in the north pier are of wood, and the entire roof of the new pier is also covered by boards of Norwegian oak. All the wood is documented as sustainably felled.
“We have also used climate-friendly concrete which is produced with almost half the climate gas emissions of regular concrete. Much of the metal is recycled. All materials have low gas emissions to the indoor climate. These have been chosen in order to create a good indoor climate for both the passengers and those who work in the terminal”, explains Landevaag.
Environmental award
The development of Oslo Airport has been selected for the ‘Nordic Best Practice’ project in new, Nordic guidelines for the procurement of environmentally friendly building materials. This was awarded for both the building process, the methods used and the standards that have been set.
Read the report here: http://ngbc.no/wp-content/uploads/2015/10/veileder_anskaffelse_A4_tiltrykkNY.pdf

Innovative energy solutions
As part of the development project a thermal snow depot was established north of the terminal building. This is where Oslo Airport stores clean winter snow covered by sawdust. The melt water is collected from the bottom and is used to cool the north pier in summer. The terminal is heated using waste water and ground heating.

“The new buildings have been constructed according to the ‘passive house standard’. This implies much better isolation of floors, walls, roofs and windows than what the current building regulations require. This results in low energy consumption during operation. We have received passive house funding from ENOVA for the solution that was chosen”, says Landevaag.
A good climate balance
A balance for climate gas emissions for the new terminal buildings has been estimated using Statsbygg’s climate gas tools. The balance shows that use of climate friendly building materials has given a solid 43 per cent reduction in emissions compared to the building on the drawing board before the climate friendly measures were implemented. The architects and contractors have done a great job in finding climate friendly products to comply with the project’s climate standards.
“The climate gas balance shows that passive buildings and climate friendly energy supply gives large climate benefits. A 35 per cent reduction in emissions compared to regular buildings that have been constructed according to Norwegian building standards”, says Landevaag.
Source sorting
During the development period, Oslo Airport has source sorted most of the construction waste. According to regulations at least 60 per cent must be sorted. However, Oslo Airport has sorted as much as 91 per cent of its the construction waste.
Recycling of building elements
An innovative solution in the building project at Oslo Airport has been to dismantle much of the construction waste for recycling purposes. A good example of this is the building wall that separated the original terminal from the building site towards the north pier. This will now become a veteran car museum!
The provisional building that was located above the railway station during the development period will become a new barn, and all concrete that was taken away has been kept for use as quality material.
No environmental emissions
There have been no emissions that have led to damages on the environment or ground water pollution during the during the development period. All minor incidents have been reported and dealt with at once.
Good experiences for new projects
The environment is fully integrated in the regular project management model in the development project. Avinor is now reaping the benefits of this in the development of the groups project management model to accommodate environmental aspects in new building projects. This implies new routines for collaboration between all involved parties in a development project. This has also led to new requirements and routines for effective handling and control of environmental standards at all stages – from planning to completion of buildings and facilities. This method is based on the idea that a combination of clear environmental standards and guidance and clear distribution of responsibilities works best.
“All in all we are very pleased with how our environmental initiative has played out in the project. We have worked well together and taken the Norwegian construction sector a small step towards the green shift”, concludes Landevaag.


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