Renzo Piano: Lightness, Craft and the Engineered Detail

Renzo Piano has spent more than half a century designing buildings that feel light: roofs that filter daylight, structures assembled from carefully crafted components, facades that breathe. Born into a family of builders in Genoa, he has always treated architecture as a matter of making, and his practice has worked unusually closely with structural engineers to develop components that are as much engineering as design.

This article looks at his work from a structural engineer’s perspective. It traces the ideas of lightness and craft through a handful of key buildings and explains how each one carries its loads, manages light and responds to its climate.

A builder’s son from Genoa

Piano was born on 14 September 1937 in Genoa, Italy, into a family of building contractors. He studied in Florence and Milan, graduating in 1964, and his early experiments were with lightweight structures, shells and prefabricated components. That background in construction, rather than drawing alone, explains his lifelong interest in how things are put together.

He has described the architect’s role as close to that of a craftsman, testing pieces at full size and refining joints until they work. His practice, the Renzo Piano Building Workshop, takes its name from that idea. For engineers, the result is a body of work in which the detail is never an afterthought: the junction of beam and column, glass and frame, roof and light is often where the architecture lives.

Centre Pompidou: the building as a machine

The Centre Pompidou in Paris, designed with Richard Rogers following a 1971 competition and opened in 1977, is one of the founding works of high-tech architecture. Its radical idea was to place the structure, circulation and services outside the building, leaving large column-free floors inside that could be rearranged freely.

The structure, engineered with Peter Rice and others at Ove Arup & Partners, uses tall steel columns along each facade with long lattice trusses spanning the full width of the building. The trusses connect to the columns through cast steel brackets called gerberettes, short cantilevers that pivot on the columns and are tied down at their outer ends. This arrangement reduces the bending in the trusses and keeps the columns working mainly in compression. The ducts, pipes and escalators on the facade are colour-coded by function, turning the services into the building’s image.

The Menil Collection: engineering daylight

At the Menil Collection in Houston, completed in 1987, Piano and Peter Rice turned the roof into an instrument for controlling light. The galleries are lit by daylight passing through a roof of curved, leaf-like elements of ferrocement, a thin cement mortar heavily reinforced with layers of fine steel mesh, suspended from trusses of cast ductile iron.

The leaves reflect and diffuse sunlight so that it reaches the artworks softly, without direct sun, while the trusses carry the roof and the glazing above. Ductile iron was chosen because it could be cast into precise shapes and resists cracking well. The building is a clear example of structure, light and environmental control being designed as a single element, an approach we discuss in our article on daylighting in architecture.

Kansai Airport: a roof shaped by air

The passenger terminal at Kansai International Airport in Osaka Bay, won in competition in 1988 and completed in 1994 with Ove Arup & Partners, sits on an artificial island built from reclaimed ground. Its roof, well over a kilometre long including the wings, is formed of a series of curved arcs, and its shape was developed in part to guide air through the large departure hall.

The long-span roof is carried on asymmetric three-dimensional steel trusses supported at their ends by pairs of inclined columns, with a cladding of thousands of identical stainless steel panels made possible by careful geometric rationalisation. The site added an engineering challenge rarely faced in airports: the island was always expected to settle as the reclaimed fill and seabed clays consolidated, so the building had to be designed with that long-term ground movement in mind, while also coping with seismic loads. Our article on foundation settlement explains the mechanisms involved.

Tjibaou Cultural Centre: timber and wind

The Jean-Marie Tjibaou Cultural Centre in Nouméa, New Caledonia, completed in 1998, is Piano’s most direct engagement with a tropical climate. It is a series of tall, curved pavilions that reinterpret the traditional great houses of the Kanak people without copying them, arranged along a ridge on the Tina Peninsula.

The pavilions are built from vertical ribs of iroko timber connected by steel members and ties, wrapped in an outer layer of timber slats and an inner layer of adjustable glass louvres. The double skin works with the prevailing wind: openings are adjusted according to wind direction and speed to draw air through the building and expel it at the top of the shells, reducing the need for mechanical cooling. The system was tested in a wind tunnel during design, a sensible step for any building relying on passive cooling.

Late works: the Shard and the San Giorgio bridge

Piano’s later work includes large urban projects such as the New York Times Building, the extension of the California Academy of Sciences in San Francisco with its planted living roof, the Whitney Museum in New York and the Shard in London. Completed in 2012, the Shard is a tapering tower of glass shards that rises to about 310 metres, combining steel and concrete floor structures over its height around a central concrete core.

In his home city of Genoa, Piano designed the San Giorgio bridge to replace the Morandi viaduct, which collapsed in August 2018. The new bridge, opened in 2020, has a continuous steel and concrete deck on slender reinforced concrete piers, and its curved underside recalls the hull of a ship. It is a rare case of an architect of his standing designing a major piece of infrastructure, and a reminder that structural safety and long-term maintenance are the foundation of any built work.

What Renzo Piano teaches engineers

Renzo Piano received the Pritzker Prize in 1998 and was appointed a senator for life in Italy in 2013. His work shows that lightness is not a style but a discipline: it comes from putting each material into the force it handles best, refining every joint, and designing structure, light and air together. In our consulting work, those same principles apply at any scale, from a long-span roof to a delicate canopy. For context, see our guide to architectural styles and principles.

Frequently asked questions

What is Renzo Piano best known for?

Renzo Piano is best known for the Centre Pompidou in Paris, designed with Richard Rogers, the Menil Collection in Houston, Kansai International Airport, the Jean-Marie Tjibaou Cultural Centre and the Shard in London.

What is a gerberette?

A gerberette is the cast steel bracket used on the Centre Pompidou to connect the long floor trusses to the columns. It acts as a short cantilever that pivots on the column and is tied down at its outer end, reducing bending in the trusses.

What is ferrocement?

Ferrocement is a thin cement mortar reinforced with closely spaced layers of fine steel mesh. It can be formed into thin, curved shapes, which is why Piano and Peter Rice used it for the light-diffusing roof leaves of the Menil Collection.

When did Renzo Piano win the Pritzker Prize?

Piano received the Pritzker Architecture Prize in 1998, a year before Norman Foster received it in 1999.

Designing a long-span roof, a light canopy or a building that relies on natural ventilation? Talk to our structural engineering consultancy or get in touch.