For centuries, humans have designed their buildings to make the most of available light. Methods like using mirrors to redirect light and constructing light wells above polished tiles illustrate the resourceful use of reflective materials to maximise natural light. However, about 150 years ago, the invention of electric lights changed our focus away from aligning our daily routines and architectural designs with the sun’s natural cycle.
During this time, there was a move towards darker, windowless offices and entire floors lacking sunlight, which made these spaces more susceptible to mildew instead of natural light. Thankfully, there is now a renewed emphasis on incorporating natural light into architectural planning. Recent developments are more frequently integrating natural elements, aiming to connect indoor spaces with the outdoors. This shift reflects a growing concern for employee well-being and understanding the impact of their workspace.
The presence of natural light in the workplace offers various advantages. Firstly, and most importantly, the advantage of regulating your body's circadian rhythms. This regulation affects hormone production, the immune system, sleep-wake cycles, and overall metabolic health. Therefore, proper synchronisation of these rhythms contributes to better sleep, and improved overall health, making it a factor you would prefer to work with rather than against.
Vitamin D, sourced mainly from direct sunlight, significantly impacts human health. In summer, most people acquire their annual dose of Vitamin D, while during winter, diet and supplements become the primary sources. Seasonal Adjustment Disorder (SAD) affects around 5 to 10 per cent of the global population, manifesting as a decline in mental health during winter after the brighter, warmer months. This is due to reduced daylight and fewer outdoor activities, leading to a kind of clinical depression for many. Sunlight helps with mood enhancement as it triggers the release of serotonin in the brain, known as the "feel-good" neurotransmitter, which can improve mood and reduce symptoms of depression.
According to the Future Workplace Employee Experience Study, 78 per cent of employees state that access to natural light and views positively their well-being, with 70 per cent reporting an improvement work performance. Over a third respondents feel their workspaces lack adequate natural light. Further, the absence of natural light or windows leaves 47 per cent feeling fatigued, while 43 per cent experience a sense of gloom. These findings highlight the significant role natural light plays in enhancing productivity and overall job satisfaction. Creating a healthier, more stimulating work environment not only decreases employee absenteeism but also proves beneficial for both the company and its employees.
The impact of the artificial blue light from screens, particularly when not balanced by natural light, is known to adversely affect our eyes. A recent research investigation led by Dr. Alan Hedge from Cornell University's Department of Design and Environmental Analysis validated additional advantages of natural light in the workplace, such as reduced eye strain, fewer reports of headaches, improved mood, less drowsiness and fewer mistakes.
Additionally, as natural light diminishes the reliance on artificial lighting throughout the day, it reduces energy expenses. This contributes positively to environmentally aware employees who value their employers’ efforts in conserving energy. Regulation 8 within the Workplace Health, Safety, and Welfare mandates only appropriate and adequate lighting, emphasising natural lighting where feasible. When additional natural light isn't viable, choosing lighting systems that replicate natural light or adjusting the colour temperature of artificial lights to mimic natural light's effects can also contribute to a more healthful environment. Consequently, the significance of this aspect within biophilic design is relatively minimal, mirroring the trend in other areas of the concept. Biophilic design aims to establish a stronger connection between occupants and the natural world. This involves integrating features such as natural light, ventilation, and landscape elements into building structures. Integrating natural elements like greenery, natural materials and water features within the workspace not only enhances aesthetics but also contributes to a healthier and more harmonious environment for employees. According to the National Library of Medicine, engaging with indoor plants could alleviate both psychological and physiological stress by calming the activity of the autonomic nervous system in young adults. While lush greenery might not be the primary consideration for an office environment, it stands as one of the easiest and most cost-effective methods to add vibrancy to a space and alleviate anxiety.
The positive effects of indoor plants aren’t limited to stress reduction. Studies have shown that they can also enhance air quality by reducing airborne pollutants, thus contributing to better respiratory health for individuals spending time in these spaces. This thoughtful approach to design fosters a built environment that is both more soothing and conducive to better health for individuals.
Despite being often neglected in office design, flooring is another important aspect of architectural consideration. It holds significance, particularly in utilising natural light, as light typically reflects downward. Certain industrial flooring materials possess properties that assist in amplifying natural light due to their colour and light reflection capabilities. This should be a primary consideration in office design, especially when intending to leverage natural light. Allowing natural light to enter an office space isn’t enough; you also need to make sure it can move throughout the entire area. Wall-to-wall windows and skylights can be less effective if there is bulky furniture in the path of the light. By reducing the room’s furnishings, potential issues for future projects can be avoided, ensuring optimal light distribution.
Observe your office or the next workspace you enter. Do employees sit near windows? Does the area receive ample natural light, creating a bright atmosphere? Considering the numerous benefits of natural light, it's crucial to recognise its impact on your surroundings. It should definitely be a factor to consider when relocating or changing offices.
To summarise, the integration of natural light in the workplace is far more than a design element—it's a fundamental aspect that significantly impacts the health, mood and performance of employees. Employers who prioritise and facilitate access to natural light, plants and other architectural considerations, create a more vibrant and conducive work environment, leading to happier, healthier and more productive employees.
At collective_100, we value the importance of bringing the outside in. Book in for a tour to see for yourself!
