Maviflex and the Tertiary Decree

Posted on 29 June 2023

Décret Tertiaire - MaviflexActions taken by Maviflex

The Tertiary Decree is a French regulation designed to reduce greenhouse gas emissions in the tertiary sector. It requires buildings used for tertiary purposes, such as offices, shops and services, to reduce their energy consumption. Owners or occupants of these buildings must take action to reduce their energy consumption and carbon footprint, notably through energy renovation work.
However, this decree only concerns owners whose buildings have a surface area of over 1,000 m ².

Several objectives have been set:

  • Reduce energy consumption by 40% by 2030
  • Reduce energy consumption by 50% by 2040
  • Reduce energy consumption by 60% by 2050.

The situation in France

Today, 43% of energy is consumed by the building sector.
This same sector also accounts for 23% of total greenhouse gas emissions.
As a final indicator, 5,200,000 homes are considered to be energy passoires. This means that they have very poor energy performance and leak large quantities of heat for heating and air conditioning.

At Maviflex

At present, Maviflex has 1,366 m2 of tertiary floor space, resulting in annual energy consumption of 135,000 kWh.
Maviflex is a highly innovative company, and the energy performance of its buildings is higher than average.
As a result, Maviflex does not have to reduce its greenhouse gas emissions by 40% by 2030, but by 15%!

Past and future initiatives

  • 2021 : Analysis of the building, its surface area and energy consumption
  • 2022: Development of an action plan
  • 2023: Declaration of past consumption
  • 2023 and future: Implementation of energy renovation measures

Actions taken

Maviflex is taking various actions, some of which have already been implemented and others still to come, in order to achieve its goal of reducing emissions:

  • Replacement of lighting fixtures with LEDs
  • Heating/air conditioning management system
  • Consideration of energy issues in the expansion of the new plant
  • Raising employee awareness of responsible behavior

The benefits of Maviflex high-speed doors

Maviflex doors reduce air flow and consequently heat flow between spaces, enabling customers to save energy.
It is now possible to estimate that Maviflex doors provide on average20% more energy savings than a rigid door.

This calculation is based on the general case of a building with a ceiling height of 7 meters and a floor area of 1,125 m², heated to a temperature of 19°C. The building is equipped with a single 3-metre-high by 3-metre-wide door to the outside.
The two cases studied were that of a “classic” rigid door remaining open for 8 hours a day, and that of a Maviflex high-speed flexible door opened 400 times a day for a duration of 20 seconds (total opening time of 2.2 hours).
The outdoor conditions data used were taken from an average of conditions in Lyon between 2002 and 2009, and the building heat loss data used were the average observed for an industrial building in France.