PASSIVE HOUSE CHE

  • by Sergiu Petrea
  • /
  • 2016-06-29 12:03:48
  • /
  • International
  • /
  • 14582 / EN
  • Building Type : Isolated or semi-detached house
  • Construction Year : 2014
  • Delivery year : 2015
  • Address 1 - street : 720032 SUCEAVA, Romania
  • Climate zone : [Dfb] Humid Continental Mild Summer, Wet All Year

  • Net Floor Area : 190 m2
  • Construction/refurbishment cost : 400 000 €
  • Cost/m2 : 2105.26 €/m2

Proposed by :

Certifications :

  • Primary energy need :
    89 kWhpe/m2.year
    (Calculation method : Other )
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

The challenge was to create a simple,sustainable, two-storey unit that would fit into a special site: a matureforest inside  a northern Romanian city.

House Che subtly rises aroundthe inner courtyard in a mesmerizing natural environment with whom the buildingcommunicates through wide openings and various inner-out passages.

The house was designed andbuilt to reach the passive house standard in the harsh climate conditions ofnorthern Romania (Suceava) and is in the passive evaluation process. Theestimated energy demanded for heating and hot water is lower than 14kwh/sqm/year (according to preliminary phpp calculations).

The natural day factor is fourtimes bigger than the usual amount while the generous glazed surfaces alsoincrease the solar passive energy gain. The iconic shape of the roof maximizesthe solar input used for heating, offering in the meanwhile a contemporarydynamic expression.

To match the surroundings,exterior finishing is made out of natural cedar slats that preserve theirphysical-chemical properties even in the northern climate. The green roofrecovers the vegetal surface displaced for the house construction.

The minimal need for heatingis covered by a ground/water power heat pump. Photovoltaic panels will beinstalled on the roof at a later stage in order to provide the electric energynecessary for vital consumption and domestic hot water is obtained throughsolar thermal collectors and a heat buffer tank.

See more details about this project

 http://tecto.ro/portfolio/passive-house-che-casa-pasiva-che/
 http://www.home-review.com/2015/05/the-wild-child/
 http://inhabitat.com/passive-house-che-in-romania-has-a-super-fun-indoor-net-canopy/
 http://www.trendir.com/house-design/energy-efficient-forest-home-has-suspended-net-lounge.html
 http://www.gizmag.com/passive-house-che/35469/

Stakeholders

Contracting method

Other methods

Energy consumption

  • 89,00 kWhpe/m2.year
  • 111,00 kWhpe/m2.year
  • Other

Envelope performance

  • 0,11 W.m-2.K-1
  • Exterior insulation to ambient air - 0.11W/(m²K)
    Exterior insulation underground - 0.12W/(m²K)
    Windows - 0.63W/(m²K)
    External doors - 0.10W/(m²K)

  • 0,32
  • n50

  • 0,40

Systems

    • Condensing gas boiler
    • Low temperature floor heating
    • Condensing gas boiler
    • No cooling system
    • Natural ventilation
    • Double flow heat exchanger
    • Heat pump

Product

    Proclima Membranes

    Proclima

    [email protected]

    High per­form­ance va­pour re­tard­ing and air­proof­ing sys­tem for max­im­um pro­tec­tion from struc­tur­al dam­age and mould. Highly per­meable, roof lin­ing and sark­ing mem­branes that act­ively man­age mois­ture, 3-4 ply, suit­able for tem­por­ary cov­ers.

    Both designers and workers.

Biodiversity approach

    The construction fits into a special site: a mature forest inside a northern romanian city. The building keeps all the existing trees on site and also recovers the existing lawn in the shape of the green roof.

  • 1 285,00 m2
  • 15,00 %
  • 1 000,00

Reasons for participating in the competition(s)

THE CHALLANGE WAS TO CREATE A SIMPLE, SUSTAINABLE, TWO-STOREY UNIT THAT WOULD FIT INTO A SPECIAL SITE: A MATURE FOREST INSIDE  A NORTHERN ROMANIAN CITY.

HOUSE CHE SUBTLY RISES AROUND THE INNER COURTYARD IN A MESMERIZING NATURAL ENVIRONMENT WITH WHOM THE BUILDING COMMUNICATES THROUGH WIDE OPENINGS AND VARIOUS INNER-OUT PASSAGES.

THE HOUSE WAS DESIGNED AND BUILT TO REACH THE PASSIVE HOUSE STANDARD IN THE HARSH CLIMATE CONDITIONS OF NORTHERN ROMANIA (SUCEAVA) AND IS IN THE PASSIVE EVALUATION PROCESS. THE ESTIMATED ENERGY DEMANDED FOR HEATING AND HOT WATER IS LOWER THAN 14 KWH/SQM/YEAR (ACCORDING TO PRELIMINARY PHPP CALCULATIONS).

THE MAIN PRINCIPLES AND GOALS OF SUSTAINABILITY AND ENERGY EFFICIENCY ARE PURSUED BY THE USE OF WOODEN STRUCTURES, ALL NATURAL INSULATION MATERIALS, GREEN ROOF, HIGH PERFORMANCE WINDOWS AND THE ENCOMPASSMENT OF A RESOURCE MANAGEMENT SYSTEM FOR HEATING AND ELECTRICITY SUPPLY.

THE NATURAL DAY FACTOR IS FOUR TIMES BIGGER THAN THE USUAL AMOUNT WHILE THE GENEROUS GLAZED SURFACES ALSO INCREASE THE SOLAR PASSIVE ENERGY GAIN. THE ICONIC SHAPE OF THE ROOF MAXIMIZES THE SOLAR INPUT USED FOR HEATING, OFFERING IN THE MEANWHILE A CONTEMPORARY DYNAMIC EXPRESSION.

TO MATCH THE SURROUNDINGS, EXTERIOR FINISHING IS MADE OUT OF NATURAL CEDAR SLATS THAT PRESERVE THEIR PHYSICAL-CHEMICAL PROPERTIES EVEN IN THE NORTHERN CLIMATE. THE GREEN ROOF RECOVERS THE VEGETAL SURFACE DISPLACED FOR THE HOUSE CONSTRUCTION.

THE MINIMAL NEED FOR HEATING IS COVERED BY A GROUND/WATER POWER HEAT PUMP. PHOTOVOLTAIC PANELS WILL BE INSTALLED ON THE ROOF AT A LATER STAGE IN ORDER TO PROVIDE THE ELECTRIC ENERGY NECESSARY FOR VITAL CONSUMPTION AND DOMESTIC HOT WATER IS OBTAINED THROUGH SOLAR THERMAL COLLECTORS AND A HEAT BUFFER TANK.

Building candidate in the category

Energy & Temperate Climates

Energy & Temperate Climates

Users' Choice Award

Users' Choice Award

Green Building Solutions Awards 2016


Author of the page

  • Sergiu Petrea

    Managing Partner, Architect

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