Since partial mockups for large buildings can hardly provide a representative overall impression, light simulations are indispensable for checking suitable light distributions and illuminances.
Luminaires with very narrow beam angles are suitable for the precise illumination of facades from long distances. Different light distributions make it possible to respond individually to the form of the facade.
Photography: Timm Lange
Luminaires installed on the facade create grazing light and thus intense contrasts between light and shadow. Even small projections in the façade can generate extremely long shadows. Surfaces to a height of approximately 6m can be easily emphasised with grazing light.
Large recesses make it possible to accentuate the facade in gradations. Due to the greater distance to the facade, the shadow effect of relieflike surface structures is not as extreme as with grazing light.
To illuminate high facades uniformly it is advisable to increase the distance between the facade and the luminaires. Wallwashers on masts can thus illuminate a façade with a height of about 30m at a distance of 10m from the building.
To illuminate the upper areas of very high buildings the luminaires must be positioned at long distances. The facade can be precisely illuminated with very narrow light distributions, thus also avoiding light pollution.