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deltaROSSO is a high-tech building designed to guarantee the full coverage of its energy needs. The building, which houses both apartments and offices, consists of...
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deltaROSSO
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Architects Stefano de Angelis and Maria Mazza
``All buildings will have to necessarily consume less energy and instead, when possible, they will have to be part in the energy production process``.
Rising from the past

deltaROSSO is a high-tech building designed to guarantee the full coverage of its energy needs. The building, which houses both apartments and offices, consists of a new four-story structure resting on the two basement floors of the existing building, which serve as the foundation for the whole building.
203 photovoltaic modules and 13 solar thermal panels are integrated in the facade and on the south pane of the roof. The cladding system, characterized by external sheets of matt black glass, was designed and developed by the architect allowing to bring the same aesthetic characteristics to both the perimeter walls and the roof.

Plan
of the second and third floor

South-east facade

Interior view of the penthouse

Building characteristics
  • Building typology
    Residential and administrative
  • Construction type
    New
  • Year of construction
    2016
  • Energy reference surface
    1,651 m²
  • Energy index
    54 kWh/m²a (heating, electricity and cooling)
  • Energy labelling
    Minergie-P (TI-143-P)
Architects Stefano de Angelis and Maria Mazza
``The increasingly widespread sensitivity towards these problems (N.B. climate emergency and environmental catastrophes) and uncertainty about the future, is pushing more and more towards a new way to design and built. New because today there are still many buildings which use the techniques that Auguste Perret used when they started building with reinforced concrete. We have changed, the world has changed, but many of our homes are still built with the same techniques as then, and this is obviously a constrain to improvement``.
Energy
Active solar surface 109m² 194m²
Active solar surface ratio <25% >50%
Peak power 17 kWp 30 kWp
Building skin application Solar tiles Cold facade
Storage NO –
Energy production
0
kWh
(roof and facades)
Self-consumption
73%
Building skin

Roof

  • Application
    Solar tiles integrated in a pitched roof
  • Description
    Sloped concrete roof insulated with 18 cm of Polyurethane (PUR).
  • U value
    0.14W/m²K
  • Fastening system
    Continuous fixing system (galvanized steel)
  • Other
    –

Solar installations layout

Facade

  • Application
    PV cladding integrated in cold facade
  • Description
    Concrete walls insulated with 18 cm of Polyurethane (PUR).
  • U value
    0.13W/m²K
  • Fastening system
    Continuous fixing system (galvanized steel)
  • Other
    –

Photovoltaic facade made of helioSKIN elements

Glass surface

  • Application
    Windows and skylights
  • Description
    Triple glazing with aluminium frame.
  • U value
    0.80W/m²K
  • g value
    45%
  • Other
    –

Glass is the main element of the north-west facade.

South west facade

BIPV module
  • Product
    Custom made – ISSOL – Vacallo – A
  • Manufacturer
    ISSOL Switzerland SA
  • Cell technology
    Mono-crystalline
  • Front glass type/customization
    PV cells laminated on a satin glass
  • Cell Colour
    Matt black
  • Dimension
    1497x997x88 mm
  • Power
    230 Wp
  • Specific power
    154 Wp/m²
  • Weight
    33 kg
  • Specific weight
    22 kg/m²
Technical details

A cold facade is a constructive solution that has many thermal, acoustic, aesthetic and functional advantages. In this specific case it is composed of horizontal metal tracks onto which are glued glass-glass photovoltaic modules. The cladding of deltaROSSO is the first application example of “helioSKIN” (patent by deltaZERO), a building envelope cladding system which integrate energy production technologies.

  • Visit the details page
Projection
Hotspot image
Vertical section of the eave connection
Hotspot image
Costs
  • Total cost of the building
    Not available
  • Cubic meter price
    Not available

It is practically impossible to distinguish the active PV elements from the facade cladding.

Parties involved
  • Owner
    Stefano de Angelis and Maria Mazza
  • Architect
    deltaZERO / Stefano De Angelis and Maria Mazza
  • Photovoltaic Installer
    Greenkey Sagl
  • Photo
    Luciano Carugo
Awards and recognitions
  • Awards
    Schweizer Solarpreis 2019 – Migros Bank Special Solar Prize 2019 for multiple dwelling Plus Energy Buildings
  • Publications
    Immobilia September 2018, Revidierte Kosten von Minergie
SolAR

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