For the office building, in order to achieve maximum efficiency and minimal energy waste, it was decided to invest.

The improvements were in particular:

• construction of coat with EPS type insulating panels 14 cm thick

• attic insulation on crawl space with EPS type insulating panels 14 cm thick

• insulation of crawl space towards the attic with EPS type insulating panels 14 cm thick

• new PVC windows with double glazing with solar control

Thanks to this, energy efficiency improved from energy class F to A2.