top of page
Daylight factor values on the workplane
DIAL+ allows you to calculate Daylight Factor values on virtual plans (horizontal planes or vertical walls). Simulations are made with Radiance (http://www.radiance-online.org) under CIE overcast sky (Commission International de l'Eclairage).
This calculation module has been validated according to the CIE 171-2006 protocol: (Download the validation document)
This calculation is consistent with the requirements of the main labels dealing with daylighting (CERTIVEA BREEAM, LEED, etc).
Daylight Factor
1/5
Daylight factor values in the first rank area (Certivea)
bottom of page