Daylight Modelling Workshop

A two day course in making models for use in artificial skies, good technique for measurement and analysis of results

Course tutor: Mike Baker

The course is intended to assist students to construct models that are useful for daylight analysis, suggesting construction techniques and materials; to encourage good experimental practice, and to sensibly interpret and present results. Finally, through comparison of a daylight survey of an office building for which daylight performance was modelled at the design stage, the causes of the inevitable divergence between predicted and real daylight performance will be discussed.

It is assumed that students will have some knowledge of daylighting principles, though by way of an introduction, the course would start with a quick revision including calculation of daylight factor, etc.

Course format and topics:

  • 1. The course will start with basic model making techniques:
  • Appropriate scale
  • Choice of materials
  • Identifying relevant detail
  • Design of the model to enable testing various options, and photography
  • Modelling surface reflectance
  • Glazing
  • Modelling shading devices

  • 2. Techniques for measuring illuminance would be illustrated with a sample model in the Artificial Sky:
  • Calibration of photocells
  • Setting up external ground reflectance and obstructions
  • Importance of accuracy and methodical measurement
  • Photography

  • 3. Students would be encouraged to start making a part of their current design project.

  • 4. Interpretation and presentation of data:
  • Calculating Daylight Factor
  • Setting up data in a spreadsheet
  • Correction factors
  • Making charts and isolux maps
  • Application of orientation factors
  • Use of climatic data to establish hours for which datum illuminance may be achieved
  • Effect of internal furnishing
  • Value of generic testing to identify the components of daylight Vertical DFs

  • 5. Comparison of predicted performance with reality:

  • A discussion of the causes for divergence illustrated with the results from a survey of the Housing 21 Headquarters building.
image of the interior of one of the models used within the Artificial

A kit of model components for testing of
shading and ceiling types.

The two days of the course could be consecutive, or separated by a week or so to enable students to complete their models started on the first day.

A one-day course could be arranged to deal with fewer topics and in less depth, but course notes would be available discussing the full range.

This is a course for students of architecture, environmental design and engineering and is for up to 15 - 20 students.

Cost of course: £350 (one day) or £650 (two days) + travel expenses of tutor.