1.6.4 Effect of roof windows in Green Lighthouse
The daylight performance of Green Lighthouse, a VELUX 2020 Model Home, has been evaluated with daylight factor simulations. In order to show the effect of VELUX roof windows, a comparison of the daylight conditions with and without the use of roof windows was performed.
The results, presented in Figure 1.6.5, show that the roof windows deliver high levels of daylight to the second floor’s lounge area, providing the occupants with a healthy, strongly daylit indoor environment, and with contact to the sky.
The results also show that the use of roof windows contributes to raising daylight levels on the lower floors substantially via the bright atrium space, and results in a better distribution of daylight on all floors by balancing the light coming from the facade windows.