Natural light
In simple terms, natural light is light that is generated naturally, the common source of which is the Sun. This is as opposed to artificial light, which is typically produced by electrical appliances such as lamps.
Natural light is received during daylight hours and coves the visible spectrum with violet at one end and red at the other. Not only is natural light beneficial for health, wellbeing and a good source of Vitamin D, it is required by plants to carry out photosynthesis.
Other sources of natural light include fire and, on clear nights, the moon.
Natural light can play an important role in creating a comfortable environment, helping to regulate the body clock, improve concentration and create a calm, tranquil setting. It can reduce the energy consumption of a building compared to artificial light and can also help prevent mould or mildew from developing in buildings since these spores thrive in darkness.
For more information, see How to maximise natural light.
Typically natural light is transmitted to the interior of a building through glazing such as windows, or through other openings. More complex 'daylight systems' collect natural light and deliver it deep into the heart of buildings. They use collectors in the roof to harvest light, then transport it to diffusers in interior spaces.
Exposure to too much natural light can be a problem for workers on a construction site, particularly during the summer, with the risks of sunburn, heatstroke, and glare obstructing vision.
A right to light is a type of easement referring to the right to receive sufficient light through an opening (such as a window), allowing ‘ordinary’ comfortable use and enjoyment of a dwelling, or ‘ordinary’ beneficial use and occupation of other buildings. The levels of acceptable light have not been objectively quantified and are instead assessed on a case-by-case basis by the courts.
For more information, see Rights to light.
[edit] Related articles on Designing Buildings
- Artificial lighting.
- Aspects of daylighting design covered by EN 17037.
- Brise soleil.
- Daylit space.
- Designing daylight solutions for commercial buildings.
- EN 17037 Daylight in buildings.
- Glare.
- Health and wellbeing impacts of natural and artificial lighting.
- Lighting.
- Lighting and health infographic.
- Lighting designer.
- Lighting and offices.
- Site layout planning for daylight and sunlight.
- Solar gain.
- Types of lighting.
- Types of building EN 17037 applies to.
Featured articles and news
The benefits of writing articles for your organisation
How to create a profile for your organisation and publish for free.
No Falls Week. The importance of safe working at height
What to expect and what is on offer to avoid accidents.
Scottish Government action to reach net-zero targets
Retrofit expert group highlight critical actions needed.
A forward thinking, inclusive global community of members.
From engineered product life-spans, to their extension.
Circular economy in the built environment
A brief description from 2021. Where are we now?
Mental Health Awareness Week with ABS
Architects Benevolent Society programme of activity.
CLC publishes domestic retrofit competency framework
Roadmap of Skills for net zero.
May 13-19: Moving more for our mental health.
Understanding is key to conservation.
Open industry engagement survey seeks responses
Institutions and the importance of engagement.
National Retrofit Hub unveils new guide
Digital Building Logbooks and Retrofit: An Introduction.
Enhancing construction site reporting efficiency
Through digitisation and the digital revolution.
Noise in the built environment
BSRIA guide TG 20/2021.
17,000 people suffer conditions as a result of exposure to excessive noise at work.
Turning down the noise: Auditory health
A pervasive risk with far-reaching consequences.
Getting the most out of heat pumps and heating
How heat pumps work and how they work best.
Electrotechnical excellence, now open for entries.