Is it possible to create a building with very low or almost non-existent consumption? This is the goal the European Union imposed upon its member states when the Directive 2010/31/EU was dictated, and it established that all buildings created from 2020 on shall be nearly zero-energy buildings (nZEB) and, if these buildings are public, they will have to comply with this directive before 2018.

What are nearly Zero-Energy Buildings?

The new European Directive set out a new concept of building with very high efficiency levels, the nZEB. These structures shall use zero or very low energy levels, and, to a large extent, the energy should originate in renewable sources, whether it is energy produced by on-site renewable sources or environmental green energy sources, leaving non-renewable resources aside.

How are building regulations approved?

The average thermal demand ratio required by a new building will be the reference that will measure its energy efficiency, and will be based on the use of heating, refrigeration and air-conditioning. So, the incorporation of automatic doors becomes essential to control temperature and air leaks in all buildings with nZEB Certification.

This thermal demand will be expressed by an energy efficiency ratio and a numerical indicator for primary energy consumption.

Who is responsible for the measurement criteria?

Despite being a European guideline, the international organisation has left each member state in charge of the specification of what a nZEB is. According to the last European Union’s factsheet, the current situation for the application of the directive is as follows:

  • 15 countries have already made public the features of their new buildings: Austria, Belgium, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Ireland, Latvia, Lithuania, Luxembourg, Holland, Rumania, Slovakia and United Kingdom.
  • 3 countries have regulations pending approval: Bulgaria, Italy and Slovenia.
  • 12 of the member states have not developed any regulations yet: Finland, France, Germany, Greece, Hungary, Malta, Poland, Norway, Portugal, Spain and Sweden.

The role of Manusa and its automatic doors

At Manusa, we are aware of the need for the adaptation of buildings to such important and ambitious regulations dealing with environment, as well as for our economy. This is the reason why we devote innovation and technology to our automatic doors without exception, with the purpose to make them as efficiently as possible.

It is proved that faster opening and closing speeds that prevent doors from remaining open more time than strictly needed, and always according to safety rules, is the best way of optimizing energy efficiency through entrances. In this way, we make the most of air-conditioners, heaters or refrigerators, keeping high sustainability and energy efficiency levels, while at the same time making users’ access easier through our automatic doors.