Daylighting and solar analysis for rooflights

Publication Year

2003

Document Status

Withdrawn

Abstract

Describes findings of an investigation into the origin of the perceived conflicting recommendations in Part L. Relates the examination of daylight and solar transmission properties of rooflights using lighting simulation techniques, and the notion of ‘adequate’ daylighting is given a quantitative basis. Identifies factors relating to the design and operation of rooflights and the level of expected internal gains as likely causes for the perceived conflict in Part L. Proposes refinements to the assessment method for daylighting and solar gain.

Document History

Research undertaken by the Institute of Energy and Sustainable Development, De Montfort University. This is a 2003 document and Part L was updated in 2006.

Author

Mardaljevic, J. and Lomas, K.

Publisher Information