skylight case study

1. SKYLIGHTS
GROUP
MEMBERS:
ABDUL NOOR KHAN
AIMAN NASEEM
ANUSHA ROY
JOMAN SARDAR
HAMZAH MEERAJ
SUNDUS HUSSAIN
SUFYAN AHMED

2. CONTENTS
INTRODUCTION
• SHAPES
• SIZES
• ORIENTATION
• ENERGY
• VENTILATION
• MOISTURE CONTROL
TYPES OF SKYLIGHT
• GLASS SKYLIGHTS
• DOME ACRYLIC SKYLIGHTS
• FIXED SKYLIGHTS
• VENTING SKYLIGHTS
• PYRAMID SKYLIGHTS
• GREEN SKYLIGHTS
• CUSTOM SKYLIGHTS
• BARREL VAULT SKYLIGHTS
• TUBULAR SKYLIGHTS AND SUN TUNNELS
SECTIONS USED FOR SKYLIGHTS

3. INTRODUCTION
One effective way to bring daylight into the home is through the use of skylights which are
windows installed in roofs or ceilings.
Well designed daylighting features can deliver many benefits to the home such as high light
levels, potential for energy savings, a view and connection to the outdoors and light
wavelengths that help maintain human circadian rhythms and immune system health.
Skylights provide opportunities for ventilation.
It should be properly installed to avoid water leakage.
SHAPES:
Rectangles
Circles
Ovals
Diamonds
Triangles
Multi sided
Tubular
The skylight minimizes heat gain during the day and heat loss during the night but does not
offer a view or ventilation.
SKYLIGHT SIZE:
The size of skylight is directly related to daylight levels and solar heat gain. the skylight should
not be more than 5% of the floor area in rooms with many windows and not more than 15% in
rooms with few windows.

4. ORIENTATION:
Skylights on north facing roofs provide relatively constant illumination with a cool
light appearance while skylights on south facing roofs provide constant high
illumination levels and the greatest potential of heat gain.
ENERGY:
Choose a skylight with an energy performance rating that is appropriate for your
climate and home design.
VENTILATION:
Some skylights offer the ability to ventilate hot air that gathers near the ceiling. The
skylight may open manually or automatically.
MOISTURE CONTROL:
Poorly installed skylights can be prone to water leaks. Skylights are best installed by
professionals in accordance with manufacturer instruction.

5. TYPES OF SKYLIGHT
GLASS SKYLIGHTS
• For any flat skylight the optimal
material is glass. Most glass skylights
will be composed of tempered safety
glass or laminated safety glass or a
combination of the two.
• Tempered glass is heat-strengthened
glass if it breaks, it explodes into
thousands of tiny pieces.
• Laminated glass is glass with a
plastic inter-layer which is designed
to hold in place when it breaks.
GLASS SKYLIGHTS
• Low E-glass: (for low emissivity) Low-E glass was originally
developed for energy efficiency, but it has the additional
benefit of blocking heat gain as well as heat loss through a
skylight. It provides a very comfortable light without darkening
the skylight such as in the use of tinted glass.

6. DOME ACRYLIC SKYLIGHTS
Dome skylights are designed to shut out severe
weather, are shaped to wash themselves in rain, can
be insulated (double domes), will provide
ventilation, access to the roof and even help fight
fires
Dome Skylight Use
• For all commercial, industrial, institutional or
residential buildings.
• With flat or sloping roofs, any construction.
• For new construction or renovation of existing
structures.
• For conventional applications.
• Acrylic dome materials proven to resist
discoloration, hazing and loss of strength in more
than a half-century of successful outdoor use.
FIXED SKYLIGHTS
Fixed skylights provide an economical alternative in creating a spacious
home that is filled with natural light. They capture abundant daylight for
rooms in which maximum lighting is the only requirement and are
perfect for visually expanding areas such as hallways, stairwells and
other closed-in, dark spaces that can be transformed with light and sky

7. VENTING SKYLIGHTS
A venting skylight enables Opening for maximum fresh air, the manual
venting skylight contributes to a home’s proper moisture balance and
comfort level by allowing stale, humid air to be released creating a
“passive air conditioner” or “chimney effect”. This effect releases hot air
accumulating at the ceiling while bringing cooler, fresh air in through
windows, in turn, reducing electrical needs for A/C and allowing fresh
air to circulate through the home
PYRAMID SKYLIGHTS
Each pyramid skylight system consists of main aluminum rafters
with horizontal purlins (as required). The glazing panels rest on
a snap-in EPDM gaskets and are secured by extruded
aluminum retaining bars on the main spanning rafters.
Horizontal joints are “butt glazed” with high modulus silicon
sealants. Exterior fasteners on the retaining bars are covered
with mating, snap on caps. Pyramid skylights have a system of
serrated screw spline, integrated internal weep and drainage,
internal purlin to rafter connection (no exposed fasteners), thus
better aesthetics.

8. GREEN SKYLIGHTS – ENERGY STAR
Artificial lighting is one of the biggest sources of energy
consumption in commercial and industrial applications.
Typically artificial lighting accounts for an average of 40% of
the building’s total energy. Utilizing the high amount of light
visible through glass, skylights have been shown to reduce
these energy costs by allowing artificial lighting to be turned
on an average of 20% – 30% of the time. Proper
design, installation and placement of a skylight results in a
skylight-to-floor ratio (SFR) of between 4% – 6%.
CUSTOM SKYLIGHTS
In particular cases where
the structure of a roof is
unique .
BARREL VAULT SKYLIGHTS
used in non-residential
structures, barrel vault skylights
or arch-vault skylights are utilized
for their ability to transmit natural
light through building interiors,
while increasing solar heat gain.
When designed for use in
hallways and corridors, barrel
vault skylights create an airy and
spacious feel.

9. TUBULAR SKYLIGHTS & SUN TUNNELS
• Tubular skylights, are an affordable, high-performance lighting solution that brings
daylight into interior spaces where traditional skylights and windows simply can’t
reach.
• Sometimes called “suntubes,” “sun tunnels,” “solar tubes,” and even “light
tunnels,” tubular skylights have become the ideal solution for lighting interiors in a
cost-effective, energy-efficient and eco-friendly way because they significantly
reduce the need for electricity.
• The light pipe is coated with a silver finish mirror quality that allows the full
spectrum of sunlight to be channeled and dispersed evenly into a room through
the means of a diffuser located in the ceiling.

12. INTRODUCTION
Select CITYWALK is a 1.3 million Sq. ft air-conditioned,
vibrant and upscale destination Shopping Centre.
LOCATION
Located within India's most affluent & high-end urban area
-South Delhi.
A3 District centre, Saket New delhi.
1 square meter (m2) = 10 square foot (ft2)

13. 30m wide road in front, MANDIR MARG
SITE PLAN

14. 4 lift lobby
2 washrooms
3 escalators
6 Staircases
Family & tradition
Youth
Celebration,
centre stage
Corridor 20 m
Balcony area, 6m
wide
FIRST FLOOR =10803.323+2012.72 (MULTIPLEX) =12816.043 SQ.M

15. Skylight…
Oval shaped Atrium present at the
entrance of Mall.
Atrium covered with light membrane
sheet of polycarbonate.
Around the atrium, Shops are located.
Outer view of atrium
Position of atrium
Below atrium space is used for
performance or exhibition

16. SKYLIGHT…
Glass panels around
oval shaped atrium.
Connection of Atrium in
between.
Running all
along the mall.
Covered with
same material
as atrium.
Linear Slylights.
Position of skylight

17. Acrylic sheet
Steel structural frame

19. Acrylic sheet

20. Acrylic sheet

21. Acrylic sheet
Steel pole supported by rcc columns

32. Thank You…….