Although natural light is important for human life and well-being, our building design can stay in the dark. We asked BDP Lighting’s Chris Lowe why daylight designers should be engaged in building projects.
How much daylight do you have right presently? If you’re in a standard office, it’s likely around 500 lux, which is less than 1% light of what you’d get outdoors when the sun is shining. In a classroom, it’s the same. The construction and the entire building mechanism should be in such a manner, that there is enough daylight that can filter through the building. This gives better work environment.
Having so little natural sunlight entering several of the buildings where we live, play, and educate, the inside surroundings resemble ecological dungeons. As designers and building experts, we can change it and begin by involving lighting designers from the beginning of a project.
What exactly is daylight design?
The method of positioning windowpanes, sunroof, other openings, and reflectivity so that daylight (indirectly or directly) may provide efficient inside lighting is known as daylighting. While the objective is to increase visual comfort or reduce power use, daylighting is given special consideration when designing the building.
How important is lighting layout in architecture and construction?
Daylight design is extremely important in building designs. They used to be a lot smaller business 10–15 years ago, but now more RFPs (specifications for proposal) are asking lighting designers as a scientific profession. Now even digital building plans are taken out first, then they are approved, and then the mechanism of daylight is checked and projected. In addition, local building teams and specialists are taken on hire so that that the project of light in buildings can be transported from one place to another, and more people can be made aware. Contact with sunlight inhibits melatonin (the sleep hormone) during the day and permits it to be produced at night for undisturbed sleeping.
Would there be an optimum lux level or quantity of transparency for internal settings to provide optimum light penetration?
The optimal intensity of daylight is subjective. What matters is how the lighting is spread all through the space. It’s pointless to have 100,000 lux on one piece of floor, one lux on another, and no light on the roof. We utilize lux levels, and they’re one of the few measurements that most people will understand, but the situation is more complicated than all that.
What impact can lighting designers have?
It is critical to see both the inside and exterior simultaneously. Whenever we meet with planners to explore buildings, one of the first things we strive to do is convey that light source, natural sunlight, and architectural form must all be built as one. It is essential to give sufficient daylight and not only rely on a contracting firm for daylight design and conclusion. Higher light doses give a better and positive aspect of the environment.
Lighting designers can have a role in assisting architects in creating beautiful settings that promote human health. In addition, in retail, commercial and industrial chains, proper daylight solutions can give rise to better productivity in all aspects.
Benefits of Daylighting
The overall goal of daylighting is to reduce the amount of ambient light and electricity expenditures, but it can also cut HVAC costs. Electrical lighting generates a large amount of warmth, whereas natural lighting when correctly managed, produces almost no warmth at all.
Over a year, students with the greatest daylight in their classrooms advanced 20% quicker on arithmetic assessments and 26% faster on reading tests.
Consequences of daylight design
An elevated daylight design technology may necessitate a large initial expenditure. But, if the project group gets a holistic, strategic design concept, a company’s current long-term savings more than offset any upfront daylighting costs.