Contractor

Name : Cabinet Valotaire

Contact : syndic (at) cabinetvalotaire.fr

 http://www.cabinet-valotaire.fr

Construction Manager

Name : REANOVA

Contact : Mr. Hugonenc

 http://www.reanova.fr/

Stakeholders

Function : Assistance to the Contracting Authority

Urbanis

 http://www.urbanis.fr


municipal AMO participation

Function : Company

Harmonie

Mr. Aubry

 http://www.harmonie.fr


Thermal insulation from the outside

Function : Company

Grosfillex Fenêtres

Mr. Kocak

 https://www.grosfilex.com


replacement of joinery

Function : Company

Fermatic

Mr. Colman

 https://www.fermatic.fr/


locksmith

Function : Company

Axe Etanchéité

Mr. Duthe

 http://www.axe-etancheite.fr/


cover and sealing

Function : Thermal consultancy agency

Pouget consultants

Mr. Uberquoi

 http://www.pouget-consultants.eu/


Energy Audit and Thermal Study

Type of market

Global performance contract

Energy consumption

• Primary energy need : 84,60 kWhep/m².an
• Primary energy need for standard building : 96,00 kWhep/m².an

Calculation method : RT existant

Breakdown for energy consumption : Consumption after works: 84.6 kWhep / m²SHON.an
Heating: 39.1
ECS: 34.5
Auxiliaries: 4.9
Lighting: 6.1


• Initial consumption : 231,00 kWhep/m².an

Real final energy consumption

Final Energy : 96,00 kWhef/m².an

Envelope performance

• Envelope U-Value : 0,81 W.m^-2.K^-1
More information :

Concrete masonry wall is partially covered with insulation from the outside of R = 4.2 m².K / W, the thermal bridges are cut during the renovation by the implementation of an external insulation
The index Up varies from 0.23 W / m².K to 1.68 W / m².K and the floor is composed of 20 cm of concrete of R = 3.0 m².K / W
Uw = 1.4 W / m².K; Ujn = 1.00 W / m².K;
ITE facades and gables: rockwool - R = 3.7 m2.K / W
Roof insulation: polyurethane foam - R = 5.45 m2.K / W
Replacement of 30% of the windows with a performance of Uw <1.3 W / m2 / K



Indicator : I4

• Air Tightness Value : 1,70

More information

The BBC Effinergie Rénovation consumption level is reached, according to the THCE-Ex method taking into account the five uses, the gain after works is 55%.
Heating production is provided collectively by two gas boilers of 380 kW each. Their 100% load efficiency is 98% on PCI for a power consumption of 470 W.
The production of DHW is linked to heating and semi-instantaneous type with a 500l buffer tank.
The private radiators have been replaced and thermostatic faucets put in place, as well as new adjustment tees, balancing and thermal insulation of the installation to ensure thermal performance.
In addition, the installation of a Humidity-Controlled Mechanical Ventilation (VMC) contributes to the circulation of indoor air and thus to the optimization of the heating system.

Systems

Heating system :
• Gas boiler
Hot water system :
• Gas boiler
Cooling system :
• No cooling system
Ventilation system :
• Humidity sensitive Air Handling Unit (Hygro B
Renewable systems :
• No renewable energy systems
Other information on HVAC :

Replacement of private radiators, thermostatic valves, adjustment tees, balancing, thermal insulation, installation of a humidity-controlled Mechanical Controlled Ventilation (VMC). Cventil ? 0.25 Wh / m3

No renewable energy
The installation of solar thermal panels for the production of domestic hot water has been studied. This solution was rejected by pragmatism because of the insufficient surface on the roof of building A because of the presence of kiosks and antennas, many masks on the roofs of buildings B and C, as well as a lack space in boiler room for efficient hot water storage.



Solutions enhancing nature free gains :

Remplacement de 30% des fenêtres avec une performance de Uw < 1,3 W/m2.K

Smart Building

BMS :

These sensors are equipped with two electronic sensors to measure the temperature of the radiator and another to measure the temperature in the room.



Smartgrid :

It will be possible to record individual heating consumption without entering the dwellings.
(mandatory reading-statement)

Users’ opinion on the Smart Building functions :

Splitters of heating costs are spread throughout the condominium.

Urban environment

• Land plot area : 3 308,00 m²
• Built-up area : 87,00 %

The condominium is located in the 18th arrondissement of Paris. This situation east of the Montmartre hill, easily accessible from the Gare du Nord is served by the boulevard de la chapelle. The inhabitants are near a kindergarten, a square and a Vélib 'station, as well as the cultural, sporting and commercial offer of this changing district. They are also close to the railway tracks (noise).

Product

Rockwool



Rockwool

(+33) 1 40 77 82 82

 http://www.rockwool.fr/


Product category : Second œuvre / Cloisons, isolation

Rock wool as insulating material has advantages over its entire life span:
its effective thermal resistance is complemented by additional acoustical insulation proportional to the thickness of the insulation. The mineral property of the materials adds excellent resistance to fire and water. At the end of use, rock wool can be recycled from the manufacturer as a secondary resource for the production of new rockwool.

This product is very widely used in the energy renovation market for its ease of use and good value for money.

Joinery common parts



Lorillard

 http://www.lorillard.fr/


Product category : Second œuvre / Menuiseries extérieures

Replacement of original windows and windows with thermal break PVC:
- Double glazing 4/16/4 low emissive with argon blade
- Uw & lt; 1.3 W / m2.K- Sw & gt; 0.36
- Replacement of the entrance door of 7 rue Stephenson with an aluminum unit aligned with the facades.

This product has been implemented in the common areas.

Private joinery



Lorillard

 http://www.lorillard.fr/


Product category : Second œuvre / Menuiseries extérieures

Replacement of windows and original windows with PVC with thermal break (30% of single glazed windows before work):
- Double glazing 4/16/4 low emissive with argon blade
- Uw & lt; 1.3 W / m2.K- Sw & gt; 0.36

Improved insulation

Roof terrace waterproofing



SOPREMA

Soprassistance

 https://www.soprema.com/en/


Product category :

The waterproofing of the roof terrace consists of a tarred membrane heat sealed to a rigid insulation and a layer of surface protection aggregate exposed to the weather.

Installation of an insulation during the repair of the waterproofing of the roof terrace, with 12 cm of polyurethane (0,023 W / mK) under the waterproofing membrane: R = 5.2 m².K / W and Up = 0.18 W / m²K

Construction and exploitation costs

• Total cost of the building : 1 000 000 €
• Subsidies : 650 000 €

Comfort

Health & comfort :

The orientation of the buildings and the high proportion of glazing can be sourced of important solar contributions in summer. Nevertheless, many homes are not working. Night ventilation by window opening is therefore limited and the presence of SNCF tracks can also discourage occupants from opening their windows because of noise. Thermal comfort has been improved by the insulation of the envelope:

• Sealing and thermal insulation of roofs. Polyurethane foam R = 5.45 m2.K / W
• Thermal insulation of walls from the outside (ITE) on all facades and gables. Rockwool R = 3.7 m2.K / W

The renovation project included the painting of the common areas and the layout of the exterior entrances.

Measured thermal comfort : 30.76

Acoustic comfort :

The insulation of the low boards considerably enhances the internal acoustic comfort for the user. In addition, the change of joinery partly common and especially in the private parts improves the soundproofing of the building, including the replacement of 30% of existing single glazed frames before renovation.

GHG emissions

• GHG in use : 20,00 KgCO₂/m²/an

GHG before works: 54 kg eqCO2 / m2, a decrease of -63%