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The Retrofitting Programme

>> Cotentin-Falguière Residence

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Reminder of the retrofitting stakes

� Patrimonial stakes

- bring the building to current safety and comfort standards

- improve the building’s thermal performance and limit consumption

- highlight the building’s strengths

- adjust the housing supply to the needs of SNCF staff

� Tenant stakes

- improve the comfort and living standard of dwellings

- limiting expenses related to energy consumption

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The project in figures

� Number of dwellings: 86 before, 82 after retrofitting

� Estimated duration of work: 18 months

� Total cost of work: about € 6 million (excl. European subsidy)

� Cost of work per dwelling: € 70 000 (excl. European subsidy)

� No rent increase after the works

� A 50% share of the cost savings achieved between landlord and

tenant (MOLLE Act of 2009)

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A European project

BEEM-UP: a European Union initiative

� 3 pilot sites: Alingsas (Sweden), Delft (Netherlands) and Paris (France)

� Exchange of practices and ideas among donors, builders, consulting firms,

manufacturers and universities from many countries

� A subsidy for energy saving works

Multiple common objectives

� Energy consumption reduced by 75%

� Use of innovative technical solutions

� Special attention to the support of tenants

� An long-term approach (performance and consumption monitoring)

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Tenant support

� Relocations of tenants of the apartments converted

into duplexes

� Development of buffer apartments to provide rest

areas during the works

� Support for the relocation of tenants who are

permanently leaving their homes

� Support before and during the works

� “Outer spaces” workshops: “Zen“atmosphere, more

room for bikes

� “Energy saving” workshop: a charter of "green

behaviour" in preparation

� Consultation with tenants: the result

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The detailed work programme

� The building envelope

• Thermal insulation

• Façade restoration

• Roof and terraces

• Replacement of windows

� Outdoor areas

• Courtyards and parking lots

� Common areas

• Lobbies, hallways and technical rooms

� Common amenities

• Ventilation

• Collective heating and hot water

� Housing units

• The restructured dwellings

• Heating and sanitary equipments

• Electricity

Presentation by D. LE FERRAND, Georges ROUX architect firm

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The building envelope

� External thermal insulation (ETI)

of façades

� Roof insulation

� Insulation of ceilings of common

areas

� Thermal insulation

Thickness of the

outer insulation:

20 cm

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The building envelope

� Smoothed coating on the running

parts of the facades, white tone

� Façade refurbishment

� Ground floor: stone

cladding

� Slab cladding with

natural stone effect on

metal framing,

invisible mounting

brackets

� Very high resistance to

shock and vandalism

Appearance: matt,

glossy or granite-like

� Last level: zinc

metal siding

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The building envelope

� Roof and terraces

� Roofs:

� Thermal insulation and re-sealing

� Installation of a safety railing on street

side

� Private terraces:

� Replacement of railings

� Replacement of terrace pavement by

wooden floor tiles on studs

� Transformation of 10 balconies (at the

intersection of the two streets) in bay

windows, for a gain of living space

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� Complete removal of the old frame

� Windows offset outwards, offering a small shelf

space

� Replacement of the outer window lining

� PVC frame

� Maintenance of double glazing

� The replacement of the windows

The building’s envelope

Result: better thermal and

noise insulation and a slight

increase in glass area

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� Common courtyards

Outdoor areas

� Reorganisation of the green

spaces

� Renovation of the parking

area for two-wheelers

� Garage with green roof,

securing of the terrace

� Transparency between the

street and the courtyard

(portals)

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� Parking space on cour Falguière

Outdoor areas

Abris vélo 18 places

� Installation of a wooden

bike shelter with 18

spaces

� Replacement of the porch

gate

� Upgrade of footpaths

(asphalt)

� Reorganisation of green

spaces

Motorbike

parking for the

entire residence

(14 spaces)

Bicycle parking

(28 spaces)

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Outdoor areas

� Separation of bicycles and

motorcycles

� Direct access between

porch and bike parking

� Replacement of the porch

gate

� Upgrade of footpaths

(asphalt)

� Reorganisation of green

spaces

� Parking space on cour Cotentin

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Common areas

� Replacement of the building’s

access doors

� Rehabilitation of access control

/ intercom

� Refurbishment of the keeper’s

lodge

� Mailboxes

� Embellishments of the halls

� Painting of the hallways and

stairwells

� Compliance of common

electrical, lighting

� Conformance of electrical and

lighting infrastructures

� Lobbies, hallways and stairwells

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Common areas

� Technical rooms

� Renovation of premises for strollers

and garbage room

� Evacuation of containers via the

courtyards

� Development of a maintenance room

� Compliance with fire safety

requirements (garbage room,

smoke extraction)

� Closing of galley waste discharge

chutes

Common amenities

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� Controlled mechanical ventilation (CMV)

� Installation of engines on the roof

� Recovery of existing vertical ducts

� Installation of a conduct dressed in the false ceilings of kitchens in T2

apartments

� Air vents in the kitchen, bathroom and WC

� Planing of interior doors

Constant renewal of indoor

air based on moisture levels.

Common amenities

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� Heating

� Replacement of old boilers by collective high-efficiency boilers

� Compliance with fire safety requirements for boiler room in basement

� Common hot water: the Biofluids process

� Heat recovery of wastewater to preheat the common hot water

� Demolition of six cellars and transfer for the creation of the storage room for

hot water tanks

� Retrofitting of wastewater drainage networks, requiring access to certain

private cellars

Common areas

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� Intervention in basements

� The insulation and replacement of drains will require access to

numerous cellars

� The affected tenants will be contacted directly in order to find a

solution adapter to their needs

Dwellings

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� Restructuring of dwellings

� Creation of 6 duplex apartments on the two upper levels

� Separation between the keeper’s lodge and apartment

� Extension of T4 living rooms (transition to T3bis) subject to agreement

� Soundproofing of the party wall in the sleeping room of T2s

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Dwellings

� Replacement of sanitary fixtures according to their obsolescence level

� Replacement of hip baths by enamelled steel bathtubs

� Upgrade of wall tiles when replacing a bathtub or installing a shower, including painting of

degraded walls

� Replacement of kitchen sinks and wash basins according to their state

� Replacement of toilets with 3/6 liter tank toilets

� Replace of faucets by mixer faucets fitted with aerators

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Dwellings

� Heating networks

� Installation of steel radiators in all

rooms except toilet rooms

� Horizontal format under

windows

� Vertical format alongside

French windows

� Installation of towel rails in

bathrooms

� Installation of thermostatic valve

(with integrated temperature

sensor)

� Installation of an atmosphere

thermostat for energy savings

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T4 type apartment – project

Current state

� Heating network and sanitary equipment

radiators

pipes

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T3 type apartment – project

Current state

radiators

pipes

� Heating network and sanitary equipment

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T2 type appartment – project

Current state

radiators

pipes

� Heating network and sanitary equipment

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Dwellings

� Electricity

� three scenarios are possible:

� Facilities are new and undamaged: no work needed

� Facilities are old, but still usable: targeted interventions

� Electrical facilities are old, composed of obsolete materials and equipments

(ceramic or metal switches, insufficient safeguards on the switchboard, fabric

wiring): bringing into full compliance of facilities

� Securing the facilities

� Replacement of

switchboards

� Replacement of original or

degraded equipments and

materials

� Electrical outlet

complements, especially in

the kitchen and living room

(if full compliance)

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Tentative general schedule of works

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Interventions inside dwellings: estimated duration of actions

General works

� Replacement of the chassis and dressings of interior panels 3-4 d

� Replacement of entrance doors and planing of interior doors 1 d

� Installation of radiators and power outlets 2-3 d

� Electricity 1-3 d

� Controlled mechanical ventilation, valves and ducts 1-2 d

� Passing of mounting columns 2 d

� Plumbing works 3 d

Removal of the hot water tanks and patching

Connection to the collective network

New faucets and flushes

� Painting (wall of the hot water tank and ventilation ducts) 2 d

Special works

� T4 : extension of living room (demolition, electricity, painting, floor) 5 d

� T2 : doubling of the bedroom wall (+ electricity, painting) 3 d

The building refurbishment programme

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Still under investigation:

� The overall asbestos diagnosis before start of general works on

building (in progress)

� Assessment of energy savings (consumption measurements

and remote meter reading in progress)

� During the site preparation in the presence of the construction

company

Next meeting

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Next steps

Support for the relocation of tenants affected by the duplexesJuly 2011 through June

2012

Asbestos diagnosis before the start of works (entire residence) May 2012

Consultation of contracting firms June / July 2012

3rd tenant meeting: preparation of works

Visits before worksSeptember / October 2012

Works October 2012 through April

2014

Support of tenants during the worksOctober 2012 through April

2014

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