ERASMUS IP project “Sustainable refurbishment, retrofit and energy management in
residential buildings”
Sustainable Refurbishment, Retrofit,
Energy Management in Residential Buildings
Corsica project 10.05.14 - 25.05.14
Morten Toft Jacobsen (VIA UNI)
Carlos Ramos (IUT of Corsica)
Selin Torun (UOW)
Elisa Taccioli (Unibo)
Alina Mukharova (HTW)
Indrek Soots (TKTK)
Joao Pinto (IPB)
Brief

An affordable, green design integrating thermal efficiency from sustainable and
environmentally friendly materials to meet the Passivhaus retrofit design standards.

Open spaces with maximum natural lighting

Research was put into identifying the most modern and energy efficient materials
available to ensure a new way of life for students/occupants that does not cost the
earth!
Phase A
Phase B
o Modernisation of buildings layout and design
o Addition of a green roof and/or green
(bathroom & kitchens).
facade
o Addition of elevators if deemed necessary
o Addition of a student community
o Reduction of energy consumption to retrofit
house built in sustainable timber
passive house guidelines and levels
materials, containing: computer
o Sustainable energy production (secondary
studio, toilets, relaxation/party
system).
room, small kitchen and outside
o Sustainable building materials & construction to
terrace area.
be implemented as much as possible in the
o Sustainable energy production
retrofitted building.
(secondary system).
o balcony renovation and/or addition of
balconies, if deemed necessary
o Management and cost calculations
Conceptual climate and weather analysis
Green building studio
Vasari
Solar analysis
S/W FACADE
N/E FACADE
Conceptual climate and weather analysis
Wind analysis
Conceptual climate and weather analysis
Focus areas
Keywords for choice of materials
Life span
Communnity
Use of C02
(production)
Environment
Cradle to
cradle
Floor plans (Phase A)
level 1
level 2
level 3
level 4
level 5
Types of apartments
Kitchens and common space
Single rooms
Disabled rooms
Dublex (2 single rooms + 2 double rooms)
Single room
Average area: 14 m2
Number rooms: 44
Dublex
Average area: 110 m2
Number rooms: 2
Disabled room
Average area: 25 m2
Number rooms: 2
Kitchen and common space
Average area: 25 m2
Number rooms: 6
Phase B
Wall System
Floor plan 2
Structural Insulated Panels (SIPs)
• Offer fast-track, lightweight
building solutions
• Cost effective approach and are
quick and easy to install
• Manufactured using high-pressure
foam injection to create strong
composite panels that can be
used as wall, roof and floor
panels to create highly efficient
structures.
• U-value of 0.14 W/m2K
Kitchen
Computer room
Toilets
Party Room
Terrace (green roof)
Automatic taps
o
o
Reduces the usage of water
Saves money.
Materials
Ceramic tiles in all apartments, kitchens and bathrooms
o Secure long life span
o Cheap purchase cost because of the large quantity
o Benefit of thermal mass, for natural heating..
Internal insulation regarding sound
63 dB
Fire class A2-s1,d0 (Class1)
Light reflection 70 – 75 %
L´n,w value (impact sound)
Walls: 12,5mm of gypsum board W. 30mm of Styrofoam glued on the backside.
Ceilings: 12,5mm perforated gypsum board W. 30mm of Styrofoam glued on the backside.
Regular gypsum
on wood sound
values (0,6)
New internal walls
Total thickness 145 mm
(2 x 12,5, 95mm, 2 x 12,5)
Fire value EI60
R´w value 52 Air bourne sound
Solar reflection 82% (white
9010)
Staircases
1. Control unit with emergency
power
backup for 1 window
2. Smoke ventilation window
3. Alarm buttons
4. Ventilation switch
5. Smoke sensor
6. Rain sensor
Characteristics
Expulsion of heat and smoke during fire:
-automatic or manual opening of FSP smoke
ventilation window in the event of fire
-increased safety
-building ventilation and automatic window
closing after fixed time.
External walls
Renovated wooden and green
facade:

Aiming for natural facade
materials

U-value of 0,11 with 200mm
insulation

Minimizing thermal bridges
while designing

Anchors for cladding

Only 230mm mass concrete
will remain
Connection of transforming balcony
Different facades connected together
Ventilation system

Little ventilators with heat
exchanger above windows

Heat recovery percentage of 45

Covers single and double persons
fresh air needs

Extract fans in bathrooms and
kitchens

Solar electricity mostly satisfies the
extract air ventilator’s demands
Change of the energy demands

Today
Energy usage for heating
Energy usage for heating per
squaremeter
Energy usage for ventilation
Energy usage for ventilation per
squaremeter

49082,9 kWh/y
32,0 kWh/m²*y
545,3 kWh/y
0,4 kWh/m²*y
After renovation
Energy usage for heating
Energy usage for heating per
squaremeter
Energy usage for ventilation
Energy usage for ventilation per
squaremeter
19396,7 kWh/y
12,6 kWh/m²*y
8415,7 kWh/y
5,5 kWh/m²*y
Energy Efficiency - Lighting
Why is it important?
The efficient use of energy and the resulting cost savings are, nowadays,
a concern not only of governments and officials as well as the general
population. This concern increases when it becomes aware that it is
not merely a matter of saving or, if you prefer not to spend, but also
to preserve the environment that surrounds us. Thus, environmental
concerns, such as CO2 emissions to the atmosphere and the
consequent rise of the planet and increase of the ozone hole
temperature, take paramount importance in our daily concerns.
The proposal

Replacing existing light bulbs with more efficient bulbs;

Combine energy efficiency and lighting quality;

Maintain comfort and user satisfaction;

Reduction in electricity consumption and costs;
Characteristics of lamps to check before
their replacement

Luminous Flux (lm);

Power consumption (wh);

Efficacy (lm/W);

Color temperature (appearance of light) ;

Refund chromatic (IRC);

Life time (h);
Consumption and costs per year
Conventional lamps
Total (kWh)
Costs
30000
4,416.00 €
Proposal lamps
Total (kWh)
Costs
6394.8
941.31 €
Savings per year
Energy savings (kwh)
Money savings
23605.2
3,474.69 €
Investement
Investement
Proposal lamp 1 (rooms)
2,058.16 €
Proposal lamp 2 (rooms)
1,235.00 €
Proposal lamp 3(rooms)
771.68 €
Proposal lamp (toilets)
1,543.36 €
Proposal lamp (corridors)
296.80 €
Total
5,905.00 €
Return on Investment approximately in two years
Putting sensors in the corridors

The sensor can reduce energy consumption 30 %
Reduction per corridor per year (kwh)
52.56
Consumption per corridor without a
sensor per year (kwh)
Total (kwh)
175.2
700.8
Consumption per corridor with a
sensor per year (kwh)
Total (kwh)
122.64
490.56
Savings with sensors per year
Energy saving (kWh)
Saving money
490.56
72.21€
Investment (sensors) / Unity
Total
130.71€
522.84€
Return on the investiment approximately in seven years
Final estimate
Total consumption per year
(kwh)
Cost per year
5904.24
869.10€
Green Façade
Sphagnum in metal
cages
•
•
•
•
•
•
Allows vegetation to grow
Products clean air
Easy on the eye
Acoustic insulating
Recyclable cages
Protects the building from direct sun light
Green Façade
House on Paris’ 2nd arrodissement
Windows
Detail
Components
• Wooden frame with a plastic
layer on the outside.
U value
0,73 W x m-2 x K-1
• Double glazed low emisivity
window.
• Layer of argon between the
windows
Two way opening shading
Window/ Balcony
Green Roof + Solar Panels

48 solar panels produce 20.300 kwh/year

By using a green roof on phase A we would save the environment from
the emission of 710 kg CO2 compared to installing of another roof
type.
Green Roof structure
Water/DP membrane
Ridged insulation
Galvanized trapezoid plates
Skandek green line steel beams
Mineral wool
Fire protection
Ceiling cladding
•
•
•
•
•
U-value for the construction of 600mm is 0,08W/m2k
Fraction point is between 100,5kNm to 146,7kNm Per. Beam
The weight of the elements varies from 19kg to 24kg per. running meter.
100% recyclable
90 years durability
Roof constructions
Terrace boards for the Phase B:

Low maintenance

Eco-friendly materials

60% reused wood + 30% high density polyethylene
(reused plastic)+10% colour + UV stabilizer

The lifespan of the boards of 25 to 30 years and are
90% reusable.
Stands for terrace:

stands/feet are 100% reusable

not affected by any atmospheric impacts (UV/t)

The load of each foot is distributed to an area of
320 cm2
Comparison of the existing and new building
Saving
111.660,95€
Comparison of the existing and new building
Saving
36 T/co2/yr
Savings over 30 years = 1080 Tons/co2
108 times around the world
for one car
Co2 emission of 90 amr. Homes
for one whole year
Thank you for your attention