Notre Dame envisioned as net-zero building with greenhouse

Yet another proposal for a vegetation-filled roof

Is Notre Dame destined to become get a glassy roof and spire
with an abundance of greenery inside? It certainly seems like the
case according to the architects and designers who’ve, one after
another, presented those visions.

The latest comes from Vincent Callebaut
Architectures
, known for futuristic and sustainability-minded
designs like this
twisting tree tower
in Taiwan. The firm’s plan calls for a
glazed roof that swoops into a large spire “in a single
stroke,”
per the architects
.

Rendering of Notre Dame with glass spire
Rendering: Vincent Callebaut Architectures

The French studio reimagined the damaged cathedral as a place
were nature and city connect. The pitched glass roof is supported
by ribs made from cross laminated timber that stretch upwards
towards the spire. A rooster found in the rubble sits atop the
spire as an unlikely mascot.

Rendering of man standing inside Notre Dame cathedral
Rendering: Vincent Callebaut Architectures
Rendering of exterior of cathedral
Rendering: Vincent Callebaut Architectures

Similar to proposals from
Miysis Studio
and
Studio NAB
, this plan centers around an interior greenhouse
that will produce upwards of 21 tons of fruit and vegetables every
year. The greenhouse is part of the architects’ plan to transform
Notre Dame into a net-zero building, where as much energy is
produced and used.

The wooden frame would be covered in crystal glass that’s been
layered with hydrogen fuel cells, which would absorb light and
transform it into power for the rest of the building. Additionally,
the spire will serve as a thermo-regulator, storing hot air during
the winter and letting in cool, fresh air during the summer,
turning the cathedral into an icon of modern sustainability.

Source: FS – All – Architecture 10
Notre Dame envisioned as net-zero building with greenhouse