This publication summarises the outputs of the International Energy Agency research Task 31 run under the asuspices of the Solar Heating and Cooling Programme (IEA SHC). It is currently maintained by a group of Task 31 researchers who continue this documentation programme as an IEA SHC Working Group.

The state-of-the-art research summarised here is as far as possible generic to the application of daylight in non-residential buildings. However, daylight availability differs from climate to climate so the results described here should be tempered with Country specific analysis of daylight and the appropriate design response for each site.
The Task 31 research focused on daylight integration and the information produced is presented here divided into three topics related closely to the process of design and the appropriate application of the research in design:

• defining appropriate means of measuring daylight performance: glare control, daylight availability, reduction of reflections on computer screens, etc.
• identification of advantages of and obstacles to good daylighting: costs, drawbacks, lack of knowledge, etc.
• documentation of recent improvements to performance assessment tools: validation procedures, data base of glazing materials and climatic data.

Organising the research results in the form of a guide (Roadmap) to their practical application is intended to make the material easier to access and more immediately useful. It provides a roadmap to the design of good non-residential buildings. The intended audience is primarily interested educators and experienced practitioners. However much of the roadmap itself will be of interest to clients, policy makes and even users of these buildings because the roadmap presents an easy to read narrative establishing the context for the links to the necessary detailed information and reports educators and professionals will be seeking.

The roadmap has a fourth section: research gaps / unfinished work. This identifies the work that the Task 31 research team identified as incomplete and is intended to inspire future researchers. As universities and research laboratories take up this work, this roadmap will be updated to report the new work.