ARC 312 Building Technology
Semester 5 – Fall 2024
“Anatomy of buildings:
Exploring Finishes &
Components from Floors
to Roofs”
Course Instructors:
Dr Pakinam Hassan
Arch Yousab Magdy
Types and Techniques of False Ceilings
Skylights in
Modern Building
Technology
Introduction to Skylights
❑
Definition: Skylights are architectural features that
allow natural light to enter interior spaces through
the roof of a building.
❑
Purpose: To improve natural illumination, enhance
aesthetics, provide energy savings, and increase
ventilation.
Functions and Benefits of Skylights
❑
Daylighting: Reduces the need for artificial lighting,
enhances mood, and boosts productivity.
❑
Energy Efficiency: Reduces energy consumption
when well-insulated and strategically placed.
❑
Ventilation: Natural airflow improves indoor air
quality and reduces cooling loads.
❑
Aesthetic Appeal: Skylights can transform the
interior ambiance, creating a sense of openness.
Challenges and Considerations
❑
Heat Gain and Loss: Solutions include lowemissivity coatings and insulated glazing.
❑
Leakage Issues: Proper installation and
flashing are crucial.
❑
Maintenance: Cleaning schedules, sealing
checks, and motorized component upkeep.
Construction and Installation of
Skylights
A. Materials Used in Skylights
•
Glazing Types:
o
o
Tempered Glass: Shatter-resistant, safer in case of breakage.
Laminated Glass: Contains an inner layer of PVB film for security and sound
insulation.
o
•
Acrylic/Polycarbonate: Lightweight, suitable for domes and curved skylights.
Frame Materials:
o
o
o
Aluminum: Lightweight, corrosion-resistant.
Timber: Traditional look, requires regular maintenance.
Composite Materials: Durable and energy-efficient.
Construction and Installation of
Skylights
B. Skylight Installation Process
1. Preparation: Assess roof structure, mark installation area, and create an opening.
2. Framing: Construct a curb or framework to support the skylight.
3. Weatherproofing: Apply flashing kits, waterproof membranes, and seals to prevent
leaks.
4. Placement and Securing: Mount the skylight and ensure it is secure using fasteners and
brackets.
5. Finishing Touches: Install interior trims, paint finishes, or plasterboard surrounds.
Types of Skylights
A. Fixed Skylights
•
Description: Non-operable skylights that provide
daylight but do not allow for ventilation.
•
Common Uses: Living rooms, corridors, stairwells,
and commercial spaces.
•
Materials:
Usually
made
with
tempered
or
laminated glass, and framed with materials like
aluminum, steel, or timber.
•
Details: Double or triple-glazing for energy
efficiency, UV-protective coatings.
Types of Skylights
B. Ventilated Skylights
•
Description: Skylights that can be opened, either
manually or with automated mechanisms, for
ventilation.
•
•
•
Common Uses: Kitchens, bathrooms, attics.
Mechanisms: Hinged, pivot, or sliding designs.
Construction Materials: Aluminum or composite
frames, high-impact glazing.
•
Installation
Features:
integrated weather seals.
Waterproof
flashings,
Types of Skylights
C. Tubular Skylights (Sun Tunnels)
•
Description: Compact skylights used in areas with
limited roof space, where a reflective tube
channels sunlight into the interior.
•
Components: Dome, reflective tube, and interior
diffuser.
•
Material Details: Polycarbonate or acrylic domes,
aluminum tubing with reflective coating.
•
Installation
Process:
Roof
penetration,
installation, interior ceiling finish.
tube
Types of Skylights
D. Pyramid or Dome Skylights
•
Description: Three-dimensional skylights with a
pyramid or dome shape, often used in atriums and
large commercial spaces.
•
Material Options: Acrylic, polycarbonate, or glass.
Often framed with metal structures.
•
Special Features: Impact resistance, enhanced
load-bearing properties.
•
Installation
Considerations:
Structural
reinforcement of the roof, specialized flashings.
Thank
You……..
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Course Instructors:
Dr Pakinam Hassan
Arch Yousab Magdy