Palazzo Cavalli – Museum of Nature and Humankind, Padova
Intervening in a protected historic context such as the Museum of Nature and Humankind at the University of Padova means working in balance between heritage conservation, visual quality, and architectural integration.
The spaces, characterized by frescoes and decorated wooden-beam ceilings, required a lighting design capable of making surfaces legible without ever conflicting with them.
In this complex scenario, Zero55 developed a fully custom lighting system, designed to integrate seamlessly within the existing structure, respecting heritage constraints while ensuring optical control, visual comfort, and maximum formal discretion.
Location
Padova (PD)
Client
University of Padua
Lighting Design
Arch. Massimo Iarussi
Architectural and Museographic Design
Studio Guicciardini & Magni Architetti
Photography
Luminaires
Sistemi custom con ottiche lineari asimmetriche e Micro40 sviluppati e prodotti da Zero55
The project
The lighting design for the Museum of Nature and Humankind required:
- Invisible integration of all fixtures, avoiding any invasive intervention on historic beams and surfaces
• Uniform vertical illumination to reveal frescoes, vaults, and decorated walls
• Controlled accent lighting on details, materials, and chromatic nuances, without glare
• Full reversibility, an essential condition in a protected heritage environment
The main challenge was reconciling the exhibition needs—clarity and legibility of the museum narrative—with the utmost respect for the historic architecture and its decorative elements.
The product
To meet the museum’s specific needs, Zero55 engineered and produced a fully custom lighting system, built around three key components:
Custom-designed linear housings
Linear housings integrated between the decorated wooden beams, designed to accommodate:
- asymmetric linear optics for controlled wall-washing on frescoed surfaces
- Micro40 projectors for accent lighting on details and architectural features
The geometry of the housings was calibrated to the proportions of the rooms and spacing of the beams, ensuring visual continuity and minimal perception of the fixture.
Expander-based mounting system
As drilling into the historic ceilings was not allowed, a mounting system based on longitudinal and transversal expanders was developed.
This allows:
- anchoring the lighting elements without perforations
- ensuring mechanical stability
- maintaining a fully reversible installation respectful of the historic structure
Optical control and visual comfort
The optical components were selected and fine-tuned to provide:
- soft, even light across frescoed surfaces
- absence of direct glare for visitors
- high colour rendering, essential when illuminating painted cycles
- minimal visual impact, with a system that remains nearly invisible
The result
Today, the new lighting system of the Museum of Nature and Humankind offers:
- controlled enhancement of frescoes and historic surfaces
• clear interpretation of the spaces and exhibition narrative
• total respect for the historic architecture, without invasive interventions on beams or protected surfaces
• comfortable, glare-free illumination that supports the visitor experience
• near-invisible integration of the Zero55 custom systems, in harmony with the identity of the place
Light becomes a tool for interpretation and preservation: it reveals, accompanies, and never invades.
It makes delicate surfaces readable while respecting their fragility, history, and cultural value.
Project Team
Client
Università degli Studi di Padova
Lighting Design
Arch. Massimo Iarussi
Architectural & Museographic Design
Studio Guicciardini & Magni Architetti
Lighting Supply
Mosaico Group
Custom Lighting Engineering & Production
Zero55