ALLGEMEINE INFORMATIONEN RENOVIERUNGS-PROZESS SANIERUNGS-LÖSUNGEN BEWERTUNG

Halle Bouchayer Viallet

ZAC BOUCHAYER VIALLET - 5 esplanade Andry Farcy

38000

Grenoble, Frankreich

Architekt

Tandem Agence

3 rue Rotrou, 28 100, Dreux

contact@tandemarchitectes.com

02 37 43 80 15

Besitzer

SCI la COOP Enercoop Rhones-Alpes

frederic.marillier@enercoop-rhone-alpes.fr

Bewohner

Ansprechpartner

Charlotte Beneteau

Sites et cités remarquables de france

c.beneteau@sites-cites.fr

Other Information

Most of the information comes from the architectural firm that worked on the project.

Visits
Frédéric Marillier - ENERCOOP Rhones-Alpes

This renovation project concerns the old HALLE REBATTET, located in an industrial zone in the heart of Grenoble. The latter is the winner of the call for projects "DEFFIBAT demonstrator buildings with low energy consumption", in Rhône-Alpes, in 2017. This building is the result of the complete renovation of the west wing of the Rebattet Hall (named after its previous owner), the east wing having been demolished to make way for a residential building. The object of the project concerns the development of the hall for use as offices and a restaurant. The mixed economy company Innovia, which is in charge of the renovation of the ZAC (concerted development zone) Bouchayer Viallet, undertook development work on the remaining wing with a view to its sale: closing wall of the hall to the east , roof, doors and windows.

ALLGEMEINE INFORMATIONEN RENOVIERUNGS-PROZESS SANIERUNGS-LÖSUNGEN BEWERTUNG

Energieeffizienz

88,6 kWh/m2.y

Klimazone H1c

Höhe über dem Meer 384 m ü.d.M.

Heizgradtage 2897

Kühlgradtage 128

Unterschutzstellung nicht geschützt

Ensembleschutz:
Nein

Stufe der Unterschutzstellung:

Baualter 1900-1944

Letzte Sanierung:
2016

Vorhergehende Sanierungen:
2011

Gebäudenutzung Offices

zusätzliche Nutzung:
Hotel/Restaurant

Gebäudebelegung:
Permanently occupied

Anzahl der Bewohner/Nutzer:
184

Gebäudefläche Nettogeschossfläche [m²]: 1100,0

Gebäudetyp:
Old industrial hall

Anzahl der Stockwerke:
3

Keller ja/nein:
Ja

Anzahl der beheizten Stockwerke:
1

Bruttogeschossfläche [m²]:
0,0

NGF Berechnungsmethode:
SHON (fr)

Bauart

Masonry and metal structure for the frame

Außen:
Exposed stone

Innen:

Dach:
Pitched roof

+ MEHR - WENIGER

RENOVIERUNGS-PROZESS

Architektur

BESCHREIBUNG

The Halle Rebattet is a building belonging to the industrial heritage of the ZAC Bouchayer Viallet which was specialized in the production of cast iron networks. The building is simple, rectangular in exposed stone with a two-sided metal roof. It now accommodates offices with a co-working part as well as meeting rooms spread over the floors. A restaurant is located on the ground floor and overlooks the forecourt. The envelope is unchanged, without addition or extension. The openings are adjusted or created to take up the composition and bring light to the interior spaces. A large bay window replaces the existing large metal door, making the interior of the restaurant legible. The added elements respect the framework of the composition of the existing, in the industrial and graphic spirit. The stake of the project was to develop tertiary spaces in the existing industrial volume, in a constrained site with the strong presence of adjoining and city center context.

Städtebaulicher Kontext

Located at the western entrance to Grenoble, near the train station, the A480, and the city center, the district's strategic location is an asset for economic players. Companies like Elegia, Delta Drone, Bonitasoft or Groupe 6, one of the leading architectural firms in France, have set up there, as well as two company hotels. To support its attractiveness, 20,000 m2 of additional offices, including the installation of the Caisse d'Epargne headquarters, and a co-working space, will soon be added to the existing service offer.

Erhaltungszustand

Erhaltungszustand der Gebäudehülle

Before the renovation the building consisted of a large empty volume in good condition: with original masonry walls, an original metal frame and a roof that had been replaced. However, part of the soil was polluted, decontamination work was necessary.

DENKMALWERT

ERHALTENSWERTE ELEMENTE

Several architectural elements of Les Halles represent the typical model of industrial buildings: facades, openings and exposed stones.

Denkmalwert und wie er bestimmt wurde

The small hall is one of two industrial buildings preserved on the industrial wasteland of the Bouchayet Viallet site in Grenoble, which is now the subject of a vast development program. The building dates back to the turn of the century and was one of three penstock manufacturing and assembly plants for the hydroelectric industry on the site. The architecture is industrial and aims to be traditional and functional, combining masonry and a metal structure for the frame.

Ziel der Sanierung

Renovation

The challenge of the project was to develop tertiary spaces in an existing industrial volume, in a site constrained by a strong presence of adjoining buildings and context of the city center. The renovation works focused on the building envelope and the equipment.

Gab es eine Änderung der Nutzung?

This former factory has become a tertiary place, hosting a co-working space and a restaurant.

Gewonnen Erkenntnisse / besondere Erfahrungen

The main lesson learned during this work is the need to take into account the share of structural impact in the budget, due to the location of the building in a seismic zone.

Beteiligte Akteure

Öffentliche Hand
Région Auvergne-Rhône-Alpes
1 esplanade François Mitterrand ,69269 Lyon

Architekt
Tandem Agence
3 rue Rotrou, 28 100, Dreux
contact@tandemarchitectes.com
Tel.02 37 43 80 15

Energieberater
Axiome
Tel.03.27.96.78.84

Statiker
SORAETEC BE structure
2 Rue de la Viscose, 38130 Échirolles

Eingesetzte Software/Berechnungstools

Folgte die Sanierung einer spezifischen Methode? Nein

SANIERUNGS-LÖSUNGEN

Außenwände

Stone wall

Stone walls of 60 cm were insulated from the inside with 20 cm of mineral wool.

REPERAGE FACADE 2_rotated.pdf

U-Wert (nach Sanierung) [W/m2K]: 0,0 W/m²K

Mehr Details

Aufbau Bestandswand

Stone :
600 mm

:
0 mm

Aufbau sanierte Wand

Other - coated:
13mm

Stone :
600 mm

Insulation :
200 mm

Plaster :
12 mm

Painting (frescoes) :

Fenster

Aluminum window, double glazing, presence of adjustable sun shades

The windows have been changed, now the windows are aluminum, double glazed, with the presence of adjustable sun shades.

The windows have been changed, the architect's wish was to preserve the image of the industrial hall building with a discreet intervention: creation of spandrels, resumption of existing forms. Technically, the joinery is in lacquered aluminum with thermal break, double glazing and installed in the continuity of the lining. For summer comfort, adjustable sun screens have been installed on the frames of the west and east facades, with solar control glazing in addition.

BSO AL80 B RAL 7016.pdf

Neues Fenster U-Wert Rahmen [W/m2K]: 0,0

Mehr Details

Fenstertyp Bestand	Aluminum frame
Verglasungsart Bestand

Neuer Fenstertyp	French opening window and drop down
Verglasungsart des neuen Fensters	Double
Verschattung des neuen Fensters	adjustable sun shades

Weitere Maßnahmen

DACH

ERDGESCHOSS

MASSNAHMEN UM DIE LUFTDICHTIGKEIT ZU VERBESSERN

DACH

The light steel roof has been preserved, however 40 cm of cellulose wadding has been added in place of the 10 cm of rock wool.

The roof structure has been preserved, it is an important heritage element of this building.

Mehr Details

Aufbau Bestandsdach

Metal sheets - Lightweight sandwich panel roof:
160 mm

Other - rockwool :
100 mm

Aufbau saniertes Dach

Metal sheets - Lightweight sandwich panel roof:
160 mm

Other - mineral wool:
400 mm

ERDGESCHOSS

The existing ground was in beaten earth, realization of a paving, a heating floor as well as a waxed concrete.

Rammed earth has been replaced by simple paving, which recalls the original ground.

U-Wert (nach Sanierung) [W/m2K] 6,3

Mehr Details

Aufbau Boden/Kellerdecke im Bestand

Other - Rammed earth:
0 mm

Aufbau Boden/Kellerdecke nach Sanierung

Other - waxed concrete:
0 mm

Other - heating floor:
0 mm

Concrete slab :
0 mm

MASSNAHMEN UM DIE LUFTDICHTIGKEIT ZU VERBESSERN

The overall airtightness level of the building after renovation is very efficient and below the desired objectives. Etude thermique : n50≤0,9 vol/h - Q4Pa-surf≤0,6m3/h.m² Perméabilité testée : n50≤0,69 vol/h - Q4Pa-surf≤0,36m3/h.m²

HVAC

HEIZUNG

LÜFTUNG

BRAUCHWARMWASSER

HEIZUNG

Replacement of the oil boiler dating from 1982 with a 40 kW wood boiler located outside the heated volume. Installation of 2 wood pellet boilers - Boiler room in the basement outside the heated volume Emission by low temperature radiators in all rooms in place of old radiators and supply air. Heated floor on the ground floor - low temperature radiators in offices.

Mehr Details

	Heizungssystem nach Sanierung	zusätzliches Heizungssystem nach Sanierung
Art der Heizung	Boiler	Boiler
Brennstoff
Wärmeverteilung	Radiating wall	Radiating floor
Nennleistung	40 kW	kW

LÜFTUNG

Installation of two double-flow mechanical ventilation systems with an exchanger efficiency of 81% in the offices and the restaurant. Installation of an adiabatic system to reinforce the intervention of occupants on natural ventilation. The principle is to evaporate softened water in the ventilation duct. This system has the advantage of low energy consumption, ease of implementation, and no noise and refrigerant nuisance.

Mehr Details

Aufbau Bestandsdach	Neues Lüftungssystem
Lüftungstyp	Centralized
Type flow regime
Wärmerückgewinnung
Feuchterückgewinnung
Nennleistung	kW
Elektrische Leistung	kW
Regelung

BRAUCHWARMWASSER

DHW production by the wood boiler - Presence of a 500 liter tank

Mehr Details

	Brauchwarmwasserbereitung nach Sanierung
Typ	wood boiler
Brauchwasserspeicher	Ja
Wärmerückgewinnung aus Brauchwasser

ERNEUERBARE ENERGIE

Biomasse

Wood boiler room

Mehr Details

	Biomass System
Type
Storage size
Origin of biomass
Overall yearly production	kWh

Energieeffizienz

Energieausweis BBC-Effienergie renovation The project won the DEFFIBAT program with low energy consumption in Rhône-Alpes in 2017.

Energievrabrauch

Heizung
Primärenergie 88,6 kWh/m2.y
Energieverbrauch vor Sanierung 374,2 kWh/m2.y
Energieverbrauch nach Sanierung 88,6 kWh/m2.y

Primärenergie
Energieverbrauch incl Brauchwarmwasser Ja
Energieverbrauch vor Sanierung 374,2 kWh/m2.y
Energieverbrauch nach Sanierung 88,6 kWh/m2.y

Raumklima

akustischer Komfort

Attention has been paid to the acoustics of spaces with work on ceilings, floors and the installation of acoustic baffles.

Kosten

Finanzielle Aspekte

Total cost of works excluding VRD € 1,240,000 excluding VAT, i.e. € 1,020 excluding VAT / m² of SHON RT. Public works grants € 97,280 Public aid comes from the Deffibat program by the Rhône-Alpes Region. The amounts of the work for the envelope (roof, walls and carpentry) amounted to € 370,000. The amounts of work for the systems (VMC, Chaudière, etc.) amounted to € 280,000.

Investitionskosten

Total investment costs
1 240 000 € (total)

Umwelt

Water Management

building in the city center - pre-existing networks preserved

Transport and Mobility

building in the city center accessible by public transport. Lockers for recharging electric bicycle batteries available at the entrance