Daylight Analysis Dubai, UAE

Daylight & Sunlight

Daylight for Comfort, Sustainability and Profitability

Daylight Analysis in Dubai, UAE
When it comes to building projects that occupants will enjoy, good natural light is essential. Visually and thermally pleasant rooms that are attractive to inhabitants and consistent with the planned program define a successful daylit building. Daylight may also be used to save energy in a passive manner. Users can turn off electric lights in a room that has been properly built for daylight, lowering the building’s environmental impact and running expenses. Admitting natural light into a place, however, also means allowing the heat of solar gains into the area. Great views fetch great rates, but they may also bring operational issues. The good benefits of sunshine must be balanced against the negative consequences of overheating, discomfort, and visual glare.
Daylight Analysis in Dubai, UAE

Types of Daylight Analysis :

Benefits of Daylight Analysis :

Design Optimisation :

Daylight Analysis in Dubai, UAE
mprovement of the specifications for building structure to optimize natural light entry. This can involve things like room arrangement, glazing qualities of the building’s construction material, shading feature design, and window location in relation to the sun’s movement. It’s worth noting that the optimum source of desired daylight is the ambient sky, not the sun. Because sunlight is a type of radiation transmission (shortwave, within the visible spectrum), the sun’s solar radiation analysis will give you an idea of how much natural light each individual facet of the structure may absorb.

Indoor illuminance Calibration :

Daylight Analysis in Dubai, UAE
Daylight analysis allows for precise assessment of the light falling on the interior surface. This analysis helps to guarantee, that the building receives enough amounts of light, so that sufficient natural illumination takes place in the inside environment.

Energy Optimisation :

Daylight Analysis in Dubai, UAE
For a given working area, daylight analysis can be utilised to produce a precise measurement and estimate on how much natural light needed to replace and offset artificial lights. This aids energy modeling efforts by predicting accurate energy savings in a building during the operational stage.

Daylight & Green Buildings :

Visual comfort is one of top priority for the building occupants in all green building rating systems. Through Daylight analysis, we can optimize building design to get more daylight and less glare without affecting the heat load of the building.
Daylight requirement in Green Rating Systems

How can daylight calculations help?

Daylighting calculations can help designers to mitigate against the risk of poor natural light and also provide credits against environmental assessments like The Home Quality Mark and BREEAM.

Developing in high density urban, built up areas can often lead to poor light levels in some dwellings. Daylighting analysis takes account of a number of factors including ‘view of the sky’, and whether there is enough light at a working plane (desk) level within the dwelling.

This will very much depend on orientation, elevation and surrounding buildings – for example on a block of apartments, some units may be impacted much more than others.

Why do I need daylight calculations?

Daylighting analysis is commonly required:

Daylighting is not a mandatory issue in HQM or (the now defunct) Code Assessment, but most of our clients find it a relatively inexpensive and effective means of gaining extra credits.

BREEAM also offers credits in it’s Health & Wellbeing / Visual Comfort category.

In both instances the scheme assessor will need to provide evidence of daylighting calculations being carried out. Typical daylighting targets are 1% in bedrooms, 1.5% for living rooms, and 2% for kitchens.

Working plane calculations need to show that 80% of the working plane in a room receives direct light from the sky.

What is compliance?

Several key standards exist to provide guidance:

Daylight Calculations may be performed manually using the above standards, guidance and formulae.

They may also be carried out using Dynamic Simulation Modelling (DSM) software packages such as those provided by Designbuilder, IES and TAS. These allow for much more sophisticated 3D modelling and analysis.

Climate based daylight modelling

Climate Based Daylight Modelling is a specific methodology for undertaking daylight checks. The fundamental difference with normal daylight checks is that it uses sun and sky conditions derived from climate data, as opposed to the standard CIE overcast sky condition used in the calculation of daylight factors.

It is most applicable for education projects, since the Education Funding Agency (EFA) made it a requirement for new school designs.

Build Energy can provide daylighting analysis across a multitude of buildings, from one-off self builds to very large and complex mixed use schemes. We can create bespoke reports tailored to your requirements, and provide guidance and solutions to any issues.