What Is Daylight Modelling?

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17+ Years Daylight Modelling Experience

Our diverse team of professionals include, architects, engineers and ESD specialists. With 17 years experience "what is daylight modelling?" is something we can answer with ease.

Accuracy

We strive to deliver 100% accuracy and reliability with daylight modelling analysis quickly for a range of applications. Our people take the time to understand your project and to implement strategies and advice that will help you achieve your objectives.

 

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Professional Daylight Modelling team

If you require Daylight Modelling carried out on your building, Certified Energy is the expert in how Daylight Modelling can improve the design, function and efficiency of your project. Helping you to meet any planning permission requirements.

Cost effective daylight modelling

We strive to achieve affordable and fast daylight modelling for your projects to validate the use of natural convection in a building and reduce the costs of potential energy from electric lighting use

 

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Daylight modelling is the prediction of various radiant or luminous quantities using daylight conditions derived from standard meteorological datasets.

Daylight modelling made its appearance among other building performance simulation disciplines relatively recently, marking a profound change from the previously established daylighting analyses, such as the daylight factor and sun path diagrams. Daylight metrics derived from daylight modelling now appear in building guidelines, and daylight modelling evaluations are becoming widespread in design practices since they have proven to be a powerful tool to extract a wealth of information on the daylighting annual performance of buildings.

Useful Daylight Illuminance (UDI) and Spatial Daylight Autonomy (DA) are the two main criteria in Daylight Modelling to assess whether a room will be sufficiently day lit or not.

Useful Daylight Illuminance (UDI) is the annual occurrence of illuminances across the work-plane that is within a range considered “useful” by occupants.

Luminance = The luminous intensity (power emitting by a light source or reflected from a surface in a given direction) that is received by the human eye. It

Daylight Autonomy (DA) is the amount of time a space can expect to reach a target illuminance level on the working plane.

Daylight Autonomy = The percent of occupied times of the year for which the minimum illuminance requirement is met by daylight alone.

Daylight modelling can be used for all building types. Rating systems such as LEED v4 and the Green Star Rating are now driving this approach increasingly. Councils and VCAT have been requesting or requiring daylight assessment, analysis and/or modelling. This is especially common for mixed use and apartment developments. Once it is modelled, the data from the daylight model can also often be reused to perform JV3 thermal modelling for Class 2-9 buildings.

Outcomes from daylight modelling can include optimised:
  • Building form
  • Room layouts
  • Shading projections
  • Screening approaches
  • Window sizes, positions and tinting, and
  • Building orientation where practical.

Using Climate Based Daylight Modelling instead of daylight factors provides much greater detail about light distribution and intensity within a space, allowing the building’s design to be adjusted to maximise the use of sunlight and daylight. It can be used to:

  • Compare different design options
  • Verify that a proposed design will provide adequate daylight
  • Predict sources of potential glare, look at contrast ratios or balance of daylight within a space
  • Indicate potential energy savings from electric lighting use
  • Document daylighting code compliance

If you require Climate Based Daylight Modelling carried out on your project, Certified Energy is the expert in how Climate Based Daylight Modelling can improve the design, function and efficiency of your building. Helping you to meet any planning permission requirements.

The cost of the assessment varies depending on the size and difficulty of the project.
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Daylight Modelling Consultants


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