Project "Pearl"

  • Project type : New Construction
  • Building Type : Collective housing < 50m
  • Construction Year : 2017
  • Delivery year : 2018
  • Climate zone : [Cwb] Mild, dry winter, cool and wet summer.
  • Net Floor Area : 1 950 m2
  • Construction/refurbishment cost : 2 300 000 €
  • Number of Dwelling : 17 Dwelling
  • Cost/m2 : 1 179 €/m2
  • Cost/Dwelling : 135 294 €/Dwelling

Moderated by : Clément Gaillard

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  • Published on 02 April 19
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  • Contest

    Green Solutions Awards 2019 - Buildings

    Energy & Temperate Climates
    Low Carbon
    Health & Comfort
    Users' Choice

    Construction technique:

    The structural work is made in CLT (Cross Laminated Timber), which allowed to mount the complete envelope in eight weeks. This material does not release CO2 for its production but it has stored it throughout its life. CLT suppresses thermal bridges. Thanks to the size of the CLT panels, the number of joints is reduced and the airtightness is improved.

    Special techniques:

    > Double flow ventilation, yield> 83%.

    > Triple glazing, mixed wood / aluminum frame, global Uw = 0.88W / m2k.

    > Water management, 400m2 green roof and 15,000 liter rainwater cistern (flushing and cleaning of common areas).

    > Solar thermal panels for domestic hot water.

    > The main insulation of the envelope (facade and roof) is made of high density mineral wool 45kg / m3 over a thickness of 22cm. lambda = 0.035W / m2k.

    > The party walls are insulated by a 2 cm vacuum and 6 cm of HD mineral wool. The floor tiles between the dwellings are insulated with 6 cm of mineral wool HD

    > Airtightness n50 = 0.6 h-1

    Certification Scheme


    Rue de la Perle 3 , 1080 Bruxelles Belgique

    Technicals Features