Kalwall Translucent Panel System

Kalwall Translucent Panel System
Kalwall Translucent Panel System
What is Kalwell?
• 
Kalwall is a translucent,
highly insulating light
diffusing building system for
walls and roofing
• 
Kalwall comprises of
fiberglass sheets bonded to
a grid core of aluminium I beams
• 
A – External face sheet
• 
B – Glass fiber insulation
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C – Aluminium I-beams
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D – Internal, shatterproof
face sheet
Benefits of Kalwall
•  Unmatched thermal
performance and solar
heat gain reduction
creates climate stability
within the environment that
leads to a reduction in
HVAC systems useage
•  Natural daylight reduces
artificial lighting
requirements leading to a
reduction of building
energy consumption
•  Natural light has a positive
impact on health and
wellbeing of workers
•  High impact resistance
•  Customisable solutions
What is Kalwell?
•  Kalwall is a structural translucent sandwich panel that is
either 70mm or 100mm thick.
•  I Beams can be solid aluminium or thermally broken to
increase the thermal performance of the system.
•  The kalwall panel is encapsulated by an extruded
aluminium cill and mullion section to keep it watertight.
•  Panel widths are 1200mm and
1500mm standard.
•  The Kalwall panel is the key to
several systems available.
System 1: Wall Panels
Single span panels up to 6m run
vertically using the standard
fastening section
Wall Panel Detailing
System 2: Panel Unit Walls
Multi storey panelling using horizontal
storey battens creating a continuous
facade
Panel Unit Detailing
System 3: Window Replacement
Existing window openings with glass
replaced with new Kalwall system
with small viewing panes
Window Replacement Detailing
System 4: Standard Skylights
Standard sizing geo dome,
pyramid and flat skylights. Predetermined sizing only available in
this system
Standard Skylight Detailing
System 5: Pre-Engineered Skylights
Larger format skylights including
self supporting ridge roofs pre
engineered to withstand set
loadings
Pre-Engineered Skylight Detailing
System 6: Custom Skyroofs
Custom skyroofs are for any design outside of the standard and pre-engineered range.
Specific engineering design by Kalwall is required for support locations to be determined.
Custom Skyroof Detailing
Benefits of Kalwall over Glass
Facade
NZ ‘R’
Value
SHGR
UV
Filter
Light
Trans
STC
(Db)
Single Glaze
Glass
0.2
0%
23%
93%
13
Double Glazed
Glass
0.6
70%
93%
55%
31
Single Skin
Polycarbonate
N/A
47%
90%
56%
8
Danpalon Multicell Polycarbonate
0.8
55%
99%
45%
18
Kalwall with Glass
Fiber Insulation
1.0 -2.5
87%
99.9%
10 -30%
33
Kalwall with
Nanogel Insulation
3.5 – 4.0
90%
99.9%
15 – 20%
35
“U” value vs “R” value
“U” value measures thermal transmission through the product
USA = BTU / hr . Ft². °F
SI (System international) = w / m² . °C
R Value measures the Thermal Resistance of the product
R Value = m² . °C / w
Note: Most imported products will be using the SI “U” value.
As the “R” value is the inverse to this value, use the formula
1/U to convert the value.
i.e: SI “U” value of 0.52 is “R” 1.9 (1 / 0.52)
UV Exposure
Face sheets are made with kalwalls unique
resins and fiberglass design. Erosion veil
barrier is integral to the resistance of fiber
bloom and delamination. The face sheets
are of full thickness color stability and not a
coating.
Why Kalwall?
l
GG
Intense direct sun beams through
glass and shadow blinding spots
l
Evenly diffused daylight and no
thermal hot spots
b
Additional Features
LED backlighting gives endless
options for façade designs
Daylight Modelling
Daylight design is the use of translucent products that allow natural
daylight from the sun to emit through the product and into the building.
This can be in the form of walls / windows / roofs or skylights.
There are a number of benefits of designing with natural light dispersion
inside the building including the reduction of energy costs from less
artificial lighting and health benefits for occupiers of the building are also
improved using natural daylight.
Lighting levels and requirements are at the forefront of design priority
and the building is designed around it accommodating these
parameters.
How do we Design using Daylight?
Computer generated daylight model simulations are the most effective way to
design. Multiple scenarios can be generated at the touch of a button.
Buildings and openings are modelled based on any time or date within the
year to show typical light emitting patterns and real world weather data for a
specific site.
What is daylight modelling?
• 
Simulation shows the behavior of natural light within a space – a visual tool to
demonstrate design choices.
• 
Ideally used in the design development.
• 
Use daylight/sun as the first layer of ambient light.
• 
The building itself = luminaire.
• 
300lux is becoming the average for daylighting levels in a building but the
modelling can be tailored to custom requirements.
Typical Daylight Studies
Designing with the correct light levels and diffusion for a specific building
Typical Daylight Studies
Renders can give client realistic views of the end result
Daylight analysis should look at:
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The building as a whole
Its global position (site)
Obstructions (external and internal)
Surfaces
Key design features that effect daylighting
The intended use of the space – how much light needed?
Size and location of skylights/walls
How can we positively effect the outcome
Radiance vs Daylight Autonomy
• 
Radiance – a snapshot in time.
A time on a day (noon, sept 21st)
Shows exact light levels
(within accuracy of solar deviations).
• 
Daylight autonomy – yearly average/
sliding scale.
Choose hours of operation
Lux level – tied to space function
What % of time does the space reach the target?
300 lux – 60% of the time during hours
of Operation i.e.7 am to 6 pm….
goal is good ambient light as the first layer of light!
Let’s work through a simulation
Original design by architect
Summer solstice at Noon
Modelling shows way too much light in the pool area which can
result in glare reflection off water
Revision 1: Change upper 3m of glass wall
to Kalwall Translucent Panel
Note: Glass is transparent and not translucent which lets direct
sunlight through causing extensive glare patches
Result: Still too much daylight
Revision 2: Reduce rooflight area
Result: Improved but need to look
at glare management
Revision 3: Upper 3m of glass changed
to Kalwall for glare reduction
Upper 3m of glass area changed to Kalwall
Upper 3m All glass walls = too much glare creating
intense reflectivity on water surface and is a life safety
hazard of glass area changed to Kalwall
Result achieved with upper 3m of glass
changed to Kalwall
Direct sunlight is away from
the pool area eliminating glare
blinding on the water surface
meaning lifeguards are able to
see people in the pools at all
times
Modelling offers photo realistic renderings
Computer rendering
Actual Photograph
Side by side comparison
3D analysis methods
Volumetrics tells the story of how
light travels within the space.
A section through the model shows
how light is distributed within the space.
3D section views
Left: Using Kalwall wall panels and
implementing a Kalwall rooflight
Right: Without Kalwall translucent panels
Advantages of Building Design
using daylight modelling with Kalwall
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Specific light level requirements can be achieved
Identifies excessive light or under-illumination
Used as a submittal item for day lighting credits in
programs such as LEED, Greenstar
Compare different materials – glass / translucent /
overhangs / light shelves
Size and spacing of day lighting options – Bigger is not
always better!
Eliminates potential solar glare and hotspots for smooth
diffused lighting throughout.
Thank you for your time
Questions?
AUSTRALIA – Melbourne
Michael McGarry
PHONE: 03 5987 1856
MOBILE: 0419 326 120
EMAIL: [email protected]
AUSTRALIA – Brisbane
Shane Cassady
PHONE: 02 6672 8183
MOBILE: 0417 586 827
EMAIL: [email protected]