the presentation explains how we can integrate and use natural daylight into the interior in order to maximize passive solar energy

1. INTEGRATING DAYLIGHT
IN INTERIORS
DONE BY AZRA MALIHA

2. INDEX
• Introduction
• Application in interior spaces
• Installation methods
• Benefits
• Case study

3. INTRODUCTION
Using daylight or natural light for indoor illumination has become the most popular and demanded
application as it is a very sustainable use of light, which not only reduces electrical energy consumption,
but also conserves it, creates healthy indoor for any type of spaces.
Daylight implementation techniques are approved worldwide now and different types of smart
technology and building systems have come up for this purpose. Daylight can be induced in residential
spaces to office, commercial and even hospitality interiors. It is a key feature of sustainability and green
buildings. The various techniques not only saves energy and cost, but also make the interior
sophisticated, healthy and brings aesthetic touch .

5. APPLICATION IN INTERIOR SPACES
• Daylight can be integrated almost everywhere, in any kind of spaces. But in order to do that, we
need to determine the location of the building and the space, local climate and availability of
sunlight and other architectural factors, like placements of façade, windows, doors, skylight, roof,
materials used, technology, etc.
• Areas where we can use this also depends on function of the space and the occupants’ needs.
Commercial workspaces, educational institutes, malls, retails, restaurants, etc. uses daylight
integration using facades, windows and glass roofs. But in work spaces where there will be a lot of
uses of computers, direct sunlight is not advisable for glare issues.
• Building architecture has an important role on deciding where we can use daylight techniques.
Windows and facades facing south, skylights, or sunlight portal in the middle of a building will
allow daylight access in any interior.
• Daylight also should match with the lighting system analysis, where a detailed study must be done
on how much light we will receive from the sun and how much artificial lighting is applied.

7. INSTALLATION TECHNIQUES
1. WINDOWS. These are the most basic and ancient technique, which allows daylight and ventilation. In
modern days, we can implement south facing windows to utilize the most of natural lighting. Smart
solutions like automatic blinds or sensor consisting windows will only allow how much of natural light is
needed for that particular space.
2. FACADES. Widely used in commercial and hospitality environment and large residential spaces. These
also comes in various shapes, functions and technology according to the requirement and location of
the building. It is because the glazed facades can cause glare, privacy issues and excessive heating inside
the room if not installed properly.
3. SKYLIGHTS. Can be for both clear and cloudy skies. As these can not be controlled like windows or
facades using curtains, smart technology must be applied where the shade of skylight can be remote
operated and amount of light can be controlled in order to prevent unpleasant glare.
4. DIRECT PATHS. These are usually used in large commercial, hospitality or educational buildings, where a
daylight portal is created, which is an opening for the whole building to get access to sunlight in each
floor. Also natural sunlight can be piped and induce in other rooms.

8. Directing sunlight
through pipes to
induce light

9. Use of smart windows

10. Facades and skylights

11. BENEFITS
• The most important benefit of using daylight is it can illuminate large part of an interior in an
uniform way, without any energy consumption . It is one of the best side of sustainability, that we
use natural energy to illuminate space in day time, or working hours to reduce almost 30-60% of
electricity use.
• It reduces the use of artificial luminaries, which produce lot of heat. So the indoors are kept cool
and soothing.
• Natural light is full spectrum light, which gives excellent color rendering index.
• Sunlight kills many microbes and bacteria, keeping the interior environment fresh, healthy and
cheerful. This is tested and proved, that spaces where sunlight is used increase sales in
commercial places and performance in educational institutions.
• Using daylight reduces a lot amount of cost which is usually spent on artificial lighting.

13. CASE STUDY – AL GHURAIR UNIVERSITY
After analyzing the whole area of the university, it is noticeable that 60-70% of the total space do not require
any kind of artificial lighting during day time.
They have used full length windows with blinds, facades all around the corridors and reception area and direct
sunlight through two huge portals on both corners of the building, which provide abundance of natural light on
each floors, through the facades.
Except the classrooms which are situated in the middle of the building, rest rooms, conference and halls, office
areas and few other spaces, all of it is lit by natural lighting, which is a very good initiative in conserving energy
and cost efficiency.
The fiber insulated facades allow only the light for illumination, eliminating excessive heating during the
summer as it is situated in middle east. The window blinds also control the amount of light to enter, to avoid un-
unusual glare for the students. Break area facades are covered with shaded layer backing to dim sunlight and
make the space comfortable and soothing to the occupants.

15. CONCLUSION
Sunlight is a renewable resource, meaning it will never get over by use. As designers,
we can use this natural resource as much as we want, in all basic, innovative or
smart ways to create green buildings, cut cost and reduce the usage of electricity. If
we can implement the correct and effective methodology for integrating daylight
techniques, it is possible to create a dynamic interior.

16. REFERENCES
• https://design.ncsu.edu/building-systems-integration/daylighting-design-process/
• http://www.designmena.com/specify/daylight-as-key-design-element
• https://facades.lbl.gov/sites/all/files/Downloads/daylighting-c2.pdf