Thoughts on the design of tomorrow’s buildings : eco-responsible buildings

The Combined technological network (CNT) « Husbandry buildins of the futeur » has developed a wide network of competencies and exchanges on husbandry buildings (horses, pigs, ruminants and poultry). It promotes the emergence of projects between the actors of research, development, and teaching. Between 2014 and 2018, one of the aims of the network was to design and build virtual buildings for each of the sectors.

Each prototype put forward is optimized with regard to one of the following 3 priorities :

• The energy efficient, high performance building : priority « well-reasoned costs » to manage the overheads linked to the building.
• The eco-responsible building : priority « environment » to minimize the environmental impact of the building.
• The precision building : priority « precision » to integrate new cutting-edge technologies

Thus each prototype offers a range of technical solutions optimised with regard to the the priority aimed for, and the type of husbandry adopted. They are therefore not considered as THE only reference for what might be the buildings of the future. The prototypes will necessarily give rise to reactions of support or to constructive criticism. They do not propose a complete break from existing types of building, but rather offer the highest optimisation possible.

Each and every farmer will find sources to be adapted to his particular situation. In fact, the final choices remain with project promoters to build and equip buildings to suit the needs of their farm and their aspirations.

« Eco-responsible » buildings aim to reduce the environmental impact of farm buildings during their construction, and subsequent use. They emphasize environmental respect in every aspect :

• Integration in the landscape
• Preserving ressources in quality and quantity : water, air climate (greenhouse gases and carbon footprint).
• Reducing pollution due to noise and smell
• Connection with the territory

The eco-construction approach will guide choices made for this type of building, from thei design/ construction, their use through to their ultimate dismantling. This automatically places them within an economical approach. The idea of eco-responsibility also integrates the issues of well-being, health and safety both for Man and animals.

Building design based on 2 objectives

Aim 1 : limit the environmental impact

Fistly, solar energy is favored by using photovoltaic solar panels, a solar water-heater, or a glass roof allowing natural lighting for the stables. A vegetated roof (green roof) was also chosen for its thermal inertia. Ventilation is provided naturally via a chimney effect. There is a water recovery system from the roof which provides water for the horses’ shower and for watering of the arenas. Water used for washing is also recovered and treated.

Finally, the choice of building materials should take into account local supplies and short distribution circuits.

Aim 2 : improving the horses’ living conditions

Estimation of the investment costs Ex VAT

Strengths and weaknesses ?