La Vigneraie Residence

by Eric Balech
/
2022-04-06 00:00:00
/
France
/
6094 / FR

Renovation

Building Type : Collective housing > 50m
Construction Year : 1968
Delivery year : 2019
Address 1 - street : 50 avenue Jean Jaures 78340 LES CLAYES SOUS BOIS, France
Climate zone : [Cfb] Marine Mild Winter, warm summer, no dry season.

Net Floor Area : 30 609 m²
Construction/refurbishment cost : 5 988 329 €
Number of Dwelling : 494 Dwelling
Cost/m2 : INF €/m²

Primary energy need :
82 kWhep/m².an
(Calculation method : RT 2012 )

Energy consumption

Economical buildingBuilding

< 50A

51 à 90B

91 à 150C

151 à 230D

231 à 330E

331 à 450F

> 450G

Energy-intensive building

In the 1960s, the first large complexes appeared in suburban surroundings.

The Vigneraie condominium, made up of 9 buildings (24 of seven floors and 10 of four floors) over a little over 50,000m², was originally designed for the soldiers of Versailles. These D-classified buildings were not only energy-intensive but also more up to standard (asbestos, lead, body guards, etc.).

To overcome these problems, the Syndical Council chose an AMO (project management assistance) and REANOVA was commissioned to carry out:

An energy audit in 2014 ;
Proposals for different work scenarios at CS in 2015 ;
A presentation of the project chosen at the GA to the co-owners in 2016 with a financing plan (30 to 70% aid per co-owner depending on income) ;
Project management of the site, which started in 2018 for a period of 24 months.

SPEBI was chosen to carry out this energy renovation project with a budget of €5,988,329 excluding VAT, the challenges of which were multiple:

Floor insulation, open all cellars for cold flocking with Aneo ;
34 entrance halls: refurbished steps + change of hall doors to block drafts with relocation of digicodes which were embedded in the wall ;
Balconies: replacement of railings containing lead + creation of drops of water + encapsulation of asbestos balcony cheeks ;
The wooden shutters have been replaced by aluminum sliding shutters ;
Balcony floors: liquid waterproofing on an occupied site ;
Facades: complete insulation, the overmantels containing asbestos were covered with Stoventec (STO canvas sheet) ;
Shutters: replacement of wooden shutters with sliding shutters ;
Improvement of the VMC by the creation of gable sheath ;
Insulation of flat roofs ;
Replacement of exterior joinery with PVC double glazing ;
504 cellars: cold flocking of the ceilings.

All this could not be possible without the diplomacy of the SPEBI supervisors vis-à-vis the inhabitants to gain access to the private areas (cellars, balconies) of a construction site which will last 24 months.

Discover below the video of the construction site filmed by drones:

Architectural description

The choice of facade colors is focused on lighter and more contemporary tones.

The paint used (STOLOTUSAN) consists of bionic particles (Lotus-Effect technology) inspired by the lotus leaf. This technology will facilitate the beading effect under the action of rain.

Photo credit

Baptiste Maziere

Contractor

Name : Foncia

https://fr.foncia.com/

Construction Manager

Name : REANOVA

Contact : Baptiste MAZIERES

https://www.reanova.fr/

Stakeholders

Function : Thermal consultancy agency

POUGET Consultants

jonathan.muller[at]pouget-consultants.fr

http://www.pouget-consultants.eu/

Thermal and fluid design office

Function : Company

OPQIBI

https://www.opqibi.com/

Engineering Qualification Body.

Function : Company

SPEBI

Eric Balech

https://www.spebi.fr/

Building company specializing in renovation, ITE, cladding.

Function : Others

SOLIHA

Energy consumption

Primary energy need : 82,00 kWhep/m².an
Primary energy need for standard building : 159,00 kWhep/m².an

Calculation method : RT 2012

Breakdown for energy consumption : The data concerns building 1 (GOUNOD): Heating: 39 kWh/m2/year DHW: 28 kWh/m2/year Lighting: 7 kWh/m2/year Auxiliaries: 8 kWh/m2/year Heating and DHW auxiliaries: 2 kWh/m2/year

Initial consumption : 159,00 kWhep/m².an

Real final energy consumption

Final Energy : 82,00 kWhef/m².an

Real final energy consumption/m2 : 82,00 kWhef/m².an

Year of the real energy consumption : 2 021

Envelope performance

More information :

Vertical walls:
- Facades: Up = 3.65 W/m².K
- Insulated gables: Up = 0.50 W/m².K
- Glasal panel: Up = 1.84 W/m².K
- Walls on common circulations: Up = 2.75 W/m².K

High floors:
- Terrace roofs on the outside: Up = 0.95 W/m².K
- Low floors: Up = 2.27 W/m².K
- Joinery: Uw = 4.50 W/m².K

More information

By moving from label D to B, energy consumption went from 159 kw/m2/year to 82 kw/m2/year, i.e. an annual bill of €577,611/year to €409,913/year (-30 %).

Systems

Heating system :

Condensing gas boiler

Hot water system :

Individual gas boiler

Cooling system :

No cooling system

Ventilation system :

Natural ventilation
humidity sensitive Air Handling Unit (hygro A

Renewable systems :

No renewable energy systems

Product

VENTILECO GAZ

Product category : HVAC, électricité / ventilation, cooling

The building will be equipped with hygro-adjustable hybrid ventilation type A compatible with gas (Ventil’eco gaz), low consumption extractor:
• Self-adjusting air inlets
• Humidity-controlled extraction vents

Gas condensing boilers

Product category : HVAC, électricité / heating, hot water

Generators: Three gas condensing boilers of 1860 kW and 2 times 730 kW.

Collective distribution via a buried network from the boiler room and serving all the buildings using substations. The terminal distribution is carried out in the landing shafts of the various buildings. Class 2 network insulation.

The heat emitters are underfloor heating embedded in the slabs for buildings 1 to 8 and the original high-temperature radiators without terminal regulation in the caretaker building.

The temperature of the network leaving the boiler depends on the outside temperature. The heated floors are equipped with landing balancing valves and the radiators are originally equipped with manual shut-off valves + Installation of thermostatic valves on the radiators of the caretaker building

Gas water heater type B11BS

Product category : HVAC, électricité / heating, hot water

DHW production is individual and provided by B11BS type gas water heaters.
The distribution of DHW is individual in each dwelling.

Construction and exploitation costs

Total cost of the building : 5 988 329 €
Subsidies : 2 343 498 €

Additional information on costs :

The details of the costs can be found in the PDF "Global energy balance" LA VIGNERAIE

Comfort

Health & comfort :

Winter comfort

The occupants' winter comfort will improve with the building insulation work. The insulation of the walls and the double-glazed joinery avoid the effects of "cold walls"; air infiltration is eliminated by replacing joinery and rolling shutter boxes.

Summer comfort

A "global cold strategy" must be put in place to deal with the problem of summer discomfort in an effective way, namely:

Reduction of external contributions (solar contributions): use of external closures (roller shutters, blinds, etc.)
Reduction of internal gains (heat release from domestic equipment): energy-saving computer appliances, household appliances, audiovisuals nighttime overventilation to evacuate the heat accumulated during the day. Air conditioning systems are very energy-intensive and increase the energy bill. In addition, they are composed of refrigerants which have a detrimental impact on the environment.

Acoustic comfort :

94.9% of respondents who find the sound insulation bad in their apartment have changed at least one window since the construction of the building. Significant improvement in thermal and acoustic comfort.

Life Cycle Analysis

Eco-design material :

Glass wool (insulating material). Rock wool (insulating material). Expanded polystyrene (insulating material). Polyurethane (insulating material).

Reasons for participating in the competition(s)

POINT FORT DU CHANTIER : LA COORDINATION DE 11 EQUIPES SPECIALISEES EN SITE OCCUPEE

La rotation d’équipes spécialisées en coordination avec les copropriétaires pour répondre aux spécificités de ce chantier (ITE classique, bardage avec pose volets roulants, étanchéité balcons, traitement de l’amiante et plomb).

TRAVAUX EFFECTUES

Isolation plancher de toutes les caves par un flocage à froid avec ANEO.
Halls d’entrée : emmarchement refait + changement des portes de halls + digicode.
Balcons : remplacement des gardes corps contenant du plomb + création de gouttes d’eau + encapsulage des joues de balcons amiantées.
Sols des balcons : pose d’étanchéité liquide.
Isolation complète des façades en bardage trumeaux contenant de l’amiante avec de la plaque entoilée (STOVENTEC).
Application du revêtement de façade STOLUSAN avec des teintes portées sur des tons plus clairs et plus contemporains.
Remplacement des volets bois par des volets coulissants aluminiums.
VMC : création d’une gaine en pignon.
Isolation des toitures terrasse.
Remplacement des menuiseries extérieures par du double vitrage PVC.