Low-energy housing

  • Building Type : Isolated or semi-detached house
  • Construction Year : 2013
  • Delivery year : 2016
  • Address 1 - street : Avinguda dels Paisos Catalans, 45 08680 GIRONELLA, España
  • Climate zone : [Csa] Interior Mediterranean - Mild with dry, hot summer.

  • Net Floor Area : 142 m2
  • Construction/refurbishment cost : 1 400 €
  • Cost/m2 : 9.86 €/m2

Certifications :

  • Primary energy need :
    15 kWhpe/m2.year
    (Calculation method : )
Energy consumption
Economical buildingBuilding
< 50A
A
51 à 90B
B
91 à 150C
C
151 à 230D
D
231 à 330E
E
331 à 450F
F
> 450G
G
Energy-intensive building

During the project, 2 basic premises were pursued at all times. The first was to get a home in which most of the program was developed on the ground floor with a clear relationship with the garden and the environment. The second was to create an environmentally friendly house, designed under the Passivhaus standard, of very low energy demand and where construction processes based on dry construction are used. The implementation strategy was to generate an L-shaped building, closing with respect to neighboring buildings while opening towards the garden, taking advantage of the natural sunny and good visuals. The volumetric solution was simple, with two rectangular prisms in plan. The lower plant was generated in the form of L, and a third prism in first plant united the two previous volumes.

In order to be able to develop most of the program on the ground floor, it was decided to deplete to the maximum the occupation of the lot and to divide the program leaving all the zones of services in basement plant and to distribute the stays of the house in ground floor. In this way it was possible to simplify its use and to minimize the circulations between the different spaces.

Thus, the volume located in the inner part contains the private program (rooms and service rooms) and the other the public part as are the living room and kitchen. The two volumes are linked through the vertical communications core and a third body in the first floor containing the study.

Finally a fourth element in the shape of a pergola is responsible for tying volumetrically the whole set.

Environmental and energy efficiency aspects were taken into account, such as the use of solar radiation to cover energy demand with a clean and free source, were considered in the conception process. The design, with large eaves to the south, allows us in winter to take advantage of the heat of the sun to warm the house, in summer, on the contrary, protects us to avoid overheating it.

The materialization of the project was gesture with the clear will to achieve a sustainable construction. The use of natural materials allows us 80% of employees can be recycled.

The structural part (forged and walls), are panels of contralled CLT wood. The numerical control technology used for the structural elements allows to have a much higher control of the finished product since they are realized in workshop and later they are transported to the work to be assembled.

 A good thermal envelope and exhaustive control at work to minimize energy losses, added to a heat recovery system that allows us to transfer much of the heat that transports indoor air to outdoor renovation air, makes the extra heat input is very low, thus generating a very low energy demand.

See more details about this project

 http://www.tonfontdevila.cat/?p=69

Data reliability

Assessor

Stakeholders

    Designer

    Fontdevila-Casajuana arquitectes

    Ton Fontdevila, arquitecte. C/Santiago Rusiñol,14 08680 Gironella (Barcelona)

    Architects


    Construction Manager

    MACUSA

    MACUSA, Maderas Cunill, S.A. Pol. Ind Cantallops s/n Olvan (Barcelona)

    Constructor


    Certification company

    Energiehaus

    Micheel Wassouf. C/ Ramón Turró, 100-104, 08005 Barcelona Tel. 931280955

    Passivhaus Certifier


    Manufacturer

    ZEHNDER

    info.es@zehndergroup.com

    Air ventilation and after-treatment equipment


    Manufacturer

    STORA ENSO

    Stora Enso Wood Products Stora Enso Oyi Head Office (legal domicile) Kanavaranta 1 FI-00101 Helsinki Finland Tel.: +358 20 46 131

    Contralled Wood, CLT


    Manufacturer

    CARINBISA

    Crtra. N.240 Km. 128 22535 Esplus, HuescaTelf: (+34) 974429955

    Wood carpentry


    Manufacturer

Contracting method

Lump-sum turnkey

Owner approach of sustainability

MACUSA, Maderas Cunill, S.A. Company specialized in the construction of wooden houses.

Architectural description

During the project, 2 basic premises were pursued at all times. The first was to get a home in which most of the program was developed on the ground floor with a clear relationship with the garden and the environment. The second was to create an environmentally friendly house, designed under the Passivhaus standard, of very low energy demand and where construction processes based on dry construction are used. The implementation strategy was to generate an L-shaped building, closing with respect to neighboring buildings while opening towards the garden, taking advantage of the natural sunny and good visuals. The volumetric solution was simple, with two rectangular prisms in plan. The lower plant was generated in the form of L, and a third prism in first plant united the two previous volumes. In order to be able to develop most of the program on the ground floor, it was decided to deplete to the maximum the occupation of the lot and to divide the program leaving all the zones of services in basement plant and to distribute the stays of the house in ground floor. In this way it was possible to simplify its use and to minimize the circulations between the different spaces. Thus, the volume located in the inner part contains the private program (rooms and service rooms) and the other the public part as are the living room and kitchen. The two volumes are linked through the vertical communications core and a third body in the first floor containing the study. Finally a fourth element in the shape of a pergola is responsible for tying volumetrically the whole set. Environmental and energy efficiency aspects were taken into account, such as the use of solar radiation to cover energy demand with a clean and free source, were considered in the conception process. The design, with large eaves to the south, allows us in winter to take advantage of the heat of the sun to warm the house, in summer, on the contrary, protects us to avoid overheating it. The materialization of the project was gesture with the clear will to achieve a sustainable construction. The use of natural materials allows us 80% of employees can be recycled. The structural part (forged and walls), are panels of contralled CLT wood. The numerical control technology used for the structural elements allows to have a much higher control of the finished product since they are realized in workshop and later they are transported to the work to be assembled. A good thermal envelope and exhaustive control at work to minimize energy losses, added to a heat recovery system that allows us to transfer much of the heat that transports indoor air to outdoor renovation air, makes the extra heat input is very low, thus generating a very low energy demand.

Energy consumption

  • 15,00 kWhpe/m2.year
  • 80,00 kWhpe/m2.year
  • 120,00 kWhfe/m2.year
  • Dcal: 15 kWh/m2a
    Qcal: 15 W/m2
    Dref: 13 kWh/m2a
    Qref: 9 W/m2

Envelope performance

  • 0,17 W.m-2.K-1
  • Enclosure


    • Facade: A = 0.17 (W / m2.k)
    • Solera: Us = 0.18 (W / m2.k)
    • Cover: Uc = 0.15 (W / m2.k)

    90mm Pine Wood Cerraminets with triple joint and triple glazing with double chamber and gas Argon> 90%. (Average values)
    • Uf = 1.1 (W / m2.k)
    • Ug = 0.60 (W / m2.k)
    • Uh = 0.85 (W / m2.k)

  • 1,58
  • 0,57

Systems

    • Heat pump
    • VAV System
    • Heat pump
    • Reversible heat pump
    • VAV Syst. (Variable Air Volume system)
    • Double flow
    • Double flow heat exchanger
    • Wood boiler
    • Heat pump

    The air conditioning of the house is done by the ventilation system. Two regeneration air after-treatment batteries have been provided by an air-heat pump. Apart from that, there is a 10 kW firewood burning stove.

Product

    Zehnder ComfoAir 350 Luxe Heat Recoverer

    Zehnder

    Zehnder Iberica

    Gros œuvre / Structure, maçonnerie, façade

    Comfort ventilation up to 370 m³ / h
    Recovery of heat with a performance of more than 90%
    Minimum power consumption due to DC motors
    100% automatic summer switching
    Frost protection function: also effective at low temperatures
    Integrated preheater and humidity regulation (optional)
    Radiocontrol and indication of filter clogging
    Regulation of the floor heat exchanger
    Minimum volumes of air, especially for the construction of houses to single-family houses

    Quick and safe mounting


    Carpentry V92

    CARINBISA

    Crtra. N.240 Km. 128 22535 Esplus, HuescaTelf: (+34) 974429955Fax: (+34) 974429482Web: www.carinbisa.comE-mail: carinbisa@carinbisa.com

    Second œuvre / Menuiseries extérieures

    Wood enclosure, European system V92

    PH B certified Component


    CLT

    STORA ENSO

    Stora Enso Wood Products Stora Enso Oyi Head Office (legal domicile) Kanavaranta 1 FI-00101 Helsinki Finland Tel.: +358 20 46 131

    Gros œuvre / Structure, maçonnerie, façade

    Structural Panels of Contralled Wood, CLT

    Fast execution on site


    EURONIT, EQUITONE system

    EURONIT

    E-mail: consulta@euronit.es

    Second œuvre / Cloisons, isolation

    Paneles de cemento reforzado para fachadas ventiladas y decoración de interiores, doblemente prensados, curados al aire y coloreados en masa o en superficie

Urban environment

Residential area

Land plot area

594,00 m2

Built-up area

324,00 %

Green space

250,00

Parking spaces

Parking in basement, with capacity for 3 vehicles

Building Environmental Quality

  • indoor air quality and health
  • acoustics
  • comfort (visual, olfactive, thermal)
  • energy efficiency
  • renewable energies
  • building process
  • products and materials

Contest categories

Energía & Climas Temperados

Energía & Climas Temperados

Green Solutions Awards 2017 - Edificios


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    Green Solutions Awards 2017 - Edificios