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A Common Language

The 1st VELUX Daylight Symposium gathered people from the field of research, education and architectural practices, as well as legislators and lighting designers to exhange knowledge, viewpoints and visions related to daylight in buildings and its effects on the occupants.

The need for a common language among practitioners and researchers was identified, as well as the need for better tools and methods to plan and evaluate daylight quality in buildings.

art'otel Budapest

The first symposium was held in Budapest, Hungary, at the art’otel located on the shore of Danube River.

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“How to define daylight quality in buildings”

08:30 - 12:30 


“Daylight quality definitions – The result of the CIE 31 task”
Marc Fontoynont (F)


”The virtues of daylight”
Peter Boyce (GB)

“Daylight quality in projects – examples from the architectural practice”
Elmar Hasler & Alexia Monauni (A)


“Daylight utilisation – seen in Southern European perspective” 
Fabio Bisegna (I)


“User response to daylight” 
Jan Wienold (D)


“Visual comfort by daylighting” 
András Majoros (H)


“Assesment of daylight quality in simple rooms”
Marie-Claude Dubois (CDN)


“How to achieve daylight quality in projects”

13:30 - 18:00 


“Daylight modelling – what are things we should define”
Werner Osterhaus (NZ)


“Final imag(in)e – various tools for daylight design”
Ivan Redi (A)


“Modelling the real world: Incorporating behavior into daylighting tools”
Guy Newsham (CDN)


“Tools on various levels – from daylighting tips – to the New York Times project”
Eleanor Lee (USA)


“Daylight consultancy in practice – Housing project in Frankfurt”
Peter Andres (D)


“Daylight consultancy in practice – Daylight on Mona Lisa, Louvre, Paris”
Marc Fontoynont (F)


Roundtable discussion


Discussion and summing-up led by the moderators