Spie Batignolles is involved in the energy renovation of a university gymnasium in Poitiers (86)

This project, supported by the State as part of the France Relance plan, for an amount of 1.880.000 euros, has the primary ambition of significantly improving the energy performance of the building, with the objective of reducing energy consumption. primary by 60%, and final energy by 64% — therefore beyond the national objectives.

The solutions proposed by the consortium will make it possible to keep the gymnasium in service during the works and ultimately offer users and the operator comfortable equipment with reduced operating costs.

The work carried out on the building envelope is also an opportunity to give a whole new image to this multi-sport hall located on the edge of the East campus of Poitiers, and its enhancement will benefit the image of the district and the University in the sense wide.

Completion of the operation is scheduled for September 2022.

A global approach to sustainability

The University of Poitiers is aiming to create an “eco-campus”, and this year this includes, among other things, the renovation of one of the key elements of its sports equipment. It opted for the expertise and proximity of the team formed around Spie batignolles grand-ouest, which includes the Créature Architectes firm, the Climat Conseil design office and the 3Ia engineering company.

The project was designed with sustainability in mind, with the use of biosourced or reused materials obtained in short supply chains, as well as a contribution to professional integration through tutoring.

The work is also characterized by the use of digital technologies with the creation of a BIM model, the use of the Teamoty planning program, or the production of a digital and dynamic Site Installation Plan allowing communication in real time with users on the progress of work.

The team will begin the rehabilitation by insulating the facades of the concrete building erected in the 1970s. They will thus receive thermal insulation from the outside in wood wool, made from biosourced materials, a decorative coating, a cladding made of composite materials or an anti-graffiti metal mesh depending on the location. The current single-glazed joinery will be replaced by double-glazed aluminum sets.

The cover, which has benefited from recent maintenance work and already has a good level of performance, will be kept as it is, as part of an approach aimed at optimizing the cost/performance ratio.

In terms of ventilation equipment, the complex will be equipped with a new dual-flow VMC in order to provide more homogeneous heating and ventilation inside the sports areas (dojo and large gymnasium).

Renovation work on the boiler room provides for the removal of the existing gas boilers, the installation of a new electric domestic hot water tank, the replacement of the electrical cabinet and the installation of dual-flow air handling units.

Thermostatic taps will be placed on each interior transmitter for more rational use and the installation of a GTC will allow real-time management and control of the various energy consumptions. Existing lighting will be replaced with energy-efficient LED luminaires.

Around 100 m² of photovoltaic panels will be installed on the office roofs, in addition to the work already planned in the initial contract.

Maintenance operations will be facilitated by the creation of a technical room on the ground floor which will house all the installations.