III.
CHOOSING
A GLASS
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1 Roof and façade glazings
119
2 Decoration and furnishings
157
.1 Stages in choosing a glass
1
1.2 Size of panes
1.3 Acoustic performance
1.4 Thermal performance
1.5 Solar and light performance – aspect
1.6 Spandrel panels
1.7 Safety
1.8 Protection against fire
1.9 Multiple functions
1.10Technical validation
1.11Feasibility
1.12Case study: tertiary building and conservatory 120
123
124
126
128
134
137
139
140
153
154
155
.1 Factors influencing the choice of glass
2
158
2.2 Summary tables 161
2.3 Case studies: office partition and cupboard door 166
There are two major types of applications for glass products:
>
vision glass and spandrel panels for façades, roofs, etc.
>
decorative applications, interior design and furnishings.
www.yourglass.com
CHOOSING A GLASS
This chapter aims to help designers and architects choose the
right glass by guiding them through various key stages.
CHOOSING A GLASS
CHOOSING A GLASS
CHOOSING A GLASS
118
1 ROOF AND
FAÇADE GLAZINGS
119
When choosing a glass, several factors should be taken into
account such as thermal insulation, solar control, light transmission, colour, sound insulation, safety, harmony with spandrels
where appropriate and so forth.
It is therefore important to investigate these various aspects.
Depending on the type of building (residential, tertiary), not all
of them will be relevant.
A case study detailing the various stages involved in choosing a
glass is given at the end of this chapter.
1.1.2 Deciding on the structure
(thickness) of the glaSS
A mechanical calculation should be used to determine the minimum structure required to ensure that the glass is stable in view
of its dimensions and the loads to which it will be exposed.
1.1.3 Determining the level of
sound insulation
Acoustic performance levels also have a direct impact on the
structure of the glass: the higher the level of acoustic performance required, the greater the mass of the glass. At a certain
level of performance and higher, Stratobel laminated glass or
Stratophone acoustic laminated glass must also be used.
CHOOSING A GLASS
The requirements in terms of structure and sound insulation are
interrelated and should be considered in parallel.
120
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1.1.4 Deciding on aspect (appearance
and colour), levels of reflection
and transmission, solar factor and
thermal insulation
CHOOSING A GLASS
1.1.1 Introduction
The aspect is generally a decisive factor when choosing the appropriate type of glass (coloured glass, coated glass, etc.).
In residential buildings, the general trend is towards neutralcoloured solutions.
In tertiary buildings, a wide range of shades, reflection and performance levels are available. Samples, mock-ups or indeed the
Glass Shuttle (mobile demonstration facility used by AGC on site
in selective countries) can help to give an accurate idea of how
products will look before making a final decision.
In curtain-wall façades, it is important to choose a spandrel which
either blends or contrasts with the vision glazing.
Depending on the type of coated glass used, calculating the risk
of breakage due to thermal shocks will determine whether glass
providing enhanced thermal insulation (thermally toughened or
heat-strengthened glass) is necessary.
1.1.5 Safety
Safety considerations (risk of injury, protection of persons
against falling, protection against burglary, firearms, explosions
and fire, etc.) should also be taken into account in certain situations. In such cases, thermally toughened or, more often, laminated glass should be used.
CHOOSING A GLASS
CHOOSING A GLASS
STAGES IN
CHOOSING A GLASS
1.1
121
1.1.6 Miscellaneous
> Multiple functions
Various functions (thermal insulation, solar control, safety,
sound insulation, decoration) can be combined in a single glass
by carefully choosing the components.
You should check that the glass is available in the required thicknesses and sizes as well as the weight of the components.
> Handling
CHOOSING A GLASS
It is important to remember that the glass will need to be handled and positioned on site and that if it is too heavy, this will
be difficult. You should also assess how accessible the glass will
be if it needs to be replaced or repaired at a later date.
The architect/designer and the façade designer should determine the correct thickness for the glass or for the double- or
triple-glazing units; this will depend, among other things, on
the location of the building, the size of the units and how they
are installed.
The thicknesses should be adapted to fit the relevant size and
stress levels (in accordance with local regulations) to prevent
the glass from excessive deflections and to protect it from the
risk of mechanical breakage associated with such deflections
and, in the long term, problems with water penetration and
condensation in insulating units.
It is important to determine the minimum thicknesses required
during the initial study phase for a façade in order to:
> select the final structure of the glazing (coated glass available, sound structure, etc.) in view of these minimum thicknesses
> reduce the size of the sealed units where necessary if they
are too thick and use thinner ones.
Information required to calculate the thickness of sealed units
In all cases:
> position of the sealed unit in the façade or roof
> dimensions of the building
> installation of the sealed unit (rebate, pressure gasket,
structural sealant, etc.)
> size of the sealed unit
> type of glass.
Plus:
> Either: wind pressure to be used in the calculation
> Or data required to calculate the wind pressure, i.e.:
· benchmark standard
· the building’s surroundings (by the sea, in a rural area,
in a town, etc.)
· whether there is internal partitioning
· the height of the building
· for roof glazings: the slope of the roof
· proximity to a tall building or hill ...
www.yourglass.com
CHOOSING A GLASS
(WIND, SNOW, etc)
> Feasibility
122
SIZE OF PANES
CHOOSING A GLASS
CHOOSING A GLASS
1.2
123
>
>
51 dB
Rw is used to categorise products and compare them to each
other; the Rw value is not normally used to assess the sound
insulation level of a particular element
CHOOSING A GLASS
124
double glazing incorporating one or two Stratobel laminated
glasses
>
double glazing incorporating one or two Stratophone
acoustic laminated glasses.
The diagram below details the anticipated performance levels
using Planibel, Stratobel and Stratophone in monolithic glazing
and in double glazing. For more accurate figures for a particular
type of double glazing, see the chapter on Thermobel Phonibel.
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39 dB
37 dB
88.2
15 mm
12 mm
66.2
44.2
10 mm
33.2
8 mm
4 mm
3 mm
32 dB
88.2 ST
66.2 ST
55.2 ST
44.2 ST
33.2 ST
36 dB
25
Planibel
Float
glass
8-15-66.2 ST
43 dB
39 dB
8-15-55.2
8-12-66.2
10-15-6
6-12-44.2
8-12-44.2 ST
40 dB
8-12-5
6-15-4
35 dB
4-12-4
29 dB
A 4-12-4 double glazed has an acoustic value of 29 dB. To
enhance the level of acoustic performance of a particular unit,
its mass must be increased or a laminated glass used and/or
the spacer in the sealed unit made bigger.
>
35
30
Acoustic performance levels (Rw values) of double-glazed units
may vary between 29 dB and approximately 51 dB.
dissymmetrical double glazing: to increase the mass of the
glasses by using two glasses of different thicknesses
43 dB
40
for noise containing predominantly low- and medium-range
frequencies, the sound insulation level of a product is determined using the index Rw + Ctr (= RA,tr).
>
10-20-44.2 ST
45
for noise containing predominantly high- and medium-range
frequencies, the sound insulation level of a product is determined using the index Rw + C (= RA)
The following double-glazed solutions are available in
ascending order of acoustic performance:
66.2 ST-20-44.2 ST
50
CHOOSING A GLASS
>
Acoustic performances of glass products
29 dB
Stratobel Stratophone Planibel
Stratobel
Stratophone
Laminated
glass with
PVB
Double
glazing with
laminated
PVB
Double
glazing with
laminated
acoustic PVB
Monolithic glass
Laminated
glass with
acoustic PVB
Standard
double
glazing
Double glazings
At equivalent levels of acoustic performance, Stratophone glazings are thinner than Stratobel ones. In practice, this means, for
example, that to achieve a performance level (Rw) of 36 dB,
either a laminated Stratobel 66.2 or a laminated Stratophone
33.2 ST glass may be used.
Equally, at equivalent levels of performance:
>
Double glazing with laminated acoustic PVB is thinner than
double glazing with laminated PVB
>
Double glazing with laminated PVB is thinner than dis­
symmetrical double glazing.
These performance levels pertain only to standard-size glazings
measuring 1.23 m x 1.58 m. To determine the performance
levels of frames and façades, it is recommended that a specialist be consulted or reference made to the tests conducted
on the full elements made by joiners and/or façade designers.
CHOOSING A GLASS
Acoustic performance levels are expressed using the index Rw
(C; Ctr), expressed in decibels (dB), as follows:
Rw (dB)
CHOOSING A GLASS
ACOUSTIC
PERFORMANCE
1.3
125
> Residential applications
Double glazing
5.7
Air 100%
Spacer 16 mm (1)
Argon 90%
Spacer 16 mm (1)
Planibel + Planibel
2.7
2.6
∙ either a Planibel Top N+ coating providing enhanced thermal
insulation
Stopsol + Planibel
2.7
2.6
Sunergy + Planibel
2.0
1.8
Planibel + Planibel G
1.7
1.5
Planibel + Planibel Top N+ / Planibel Top NT
1.4
1.1
These two products are perfectly neutral which means that they
are perfect for use in this type of building. Toughenable versions – Top NT and Energy NT – are also available.
Planibel Energy N / Energy NT+ Planibel
1.4
1.1
Stopray + Planibel
1.4
1.1
Stopsol + Top N+
1.4
1.1
> Tertiary buildings
Sunergy + Top N+
1.4
1.1
∙ or a dual function Planibel Energy coating providing
enhanced thermal insulation and solar control.
Double glazed units with solar-control coatings are generally
used: ∙ coated Stopray glasses providing a Ug value of 1.1 W/(m².K)
∙ coated Sunergy glasses providing a Ug value of 1.8 W/(m².K)
∙ coated Stopsol glasses do not affect thermal insulation and, like
uncoated double glazing, provide a Ug value of 2.8 W/(m².K)
∙ coated
Sunergy or Stopsol glasses, assembled in double-
glazed units with a coated Top N+ glass, which also provide
a Ug value of 1.1 W/(m².K).
The table below shows the range of available Ug values for
double- and triple glazed units with an argon space 15 or
16 mm wide (90%).
CHOOSING A GLASS
Ug value (W/m²K)
Double glazing is generally used, including:
N
126
Glazing
Single Planibel glazing, 6 mm
www.yourglass.com
CHOOSING A GLASS
In most countries, insulation regulations require double glazing
or even Low-E high-performance double glazing providing
enhanced thermal insulation to be used. Triple glazing 4-gas-4-gas-4 with two Top N+ coatings
Ar or Kr, 6-15 mm
0.5 to 1.0
(1) Identical values for 15 or 16 mm spacer.
To achieve a Ug value of less than 1.0 W/m².K, triple glazing
should be used with at least one Top N+ coating and argon.
As with sound insulation, the end performance also depends
on the quality of the frame and whether or not it is completely
airtight.
Most national insulation regulations express performance levels
in terms of the complete window (Uw value) rather than of the
glazing alone (Ug value).
CHOOSING A GLASS
CHOOSING A GLASS
THERMAL
PERFORMANCE
1.4
127
>
solar factor (SF or g)
>
level of light transmission (LT)
>
level of external light reflection (LR)
>
colour.
Details of annual energy usage, inside temperature and, where
appropriate, the level of air conditioning in the building will
determine the maximum permissible solar factor for any given
façade, i.e. the solar gains passing through the façade. The
level of light inside the building, visual comfort (likelihood of
glare) and the type of lighting will all depend on the LT level.
Light reflection (transparency or mirror effect) and colour are
aesthetic criteria.
The details above are all interrelated and choosing certain
values for one criterion may restrict the choice available in
others.
The levels of solar and light performance are achieved through
the use of coloured or coated glasses; the latter achieve higher
levels of performance.
CHOOSING A GLASS
AGC uses two coating technologies:
128
>
Pyrolytic coatings: Stopsol and Sunergy
>
Magnetron coatings: Stopray, Stopray T, Planibel Energy N
and Planibel Energy NT.
In some special cases silk-screen printed glasses, coated laminated glasses or glasses with coloured interlayers can also provide a degree of solar control.
Depending on the type of coating, the thicknesses available
will vary.
www.yourglass.com
The main features of these coatings are detailed in the table
below.
Stopsol
Sunergy
Use in single glazing
Yes (# 1 or 2)
Yes (# 2)
No
No
Use in double glazing
Yes (# 1 or 2)
Yes (# 2)
Yes (# 2)
Yes (# 2)
External light reflection
Poor (# 2)
to high (# 1)
Poor
Poor to high
Poor
Poor to high
Poor to
average
Poor to high
Average
Average
High
High
Solar factor
Selectivity
Poor
Toughened
Processing options
Thermal insulation
Stopray /
Stopray T
Energy N
Energy NT
CHOOSING A GLASS
The following key factors should be taken into account in the
case of solar control glazings (as well as the Ug value):
Toughened Toughened (T) Toughened (NT)
Bent
Bent
Bent (T)
Bent (NT)
Laminated
Laminated
Laminated *
Laminated *
Poor
Average
High
High
* Coating must not come into contact with the PVB.
To choose the correct product, the designer should consider
the following criteria:
> level of reflection and colour required
> level of thermal insulation required; it may be necessary to
combine the solar-control coating with a Top N+-type Low-E
coating to achieve a performance level of Ug = 1.1 W/(m².K)
(see 1.4 above)
> desired solar factor
> desired level of light transmission (depending on what is
possible in view of the solar factor required; the LT level can
never physically be more than double the SF)
> type of product used (glass with pyrolytic or Magnetron coatings); this is more of a direct consideration during processing
rather during the design stage.
Depending on these various details, the table on the following
pages will help you to choose the most appropriate product.
The table includes most of the glasses available in the AGC
range; the values indicated apply to single glazing and 6-15-6
double glazing. The three tables detail respectively the solutions for thermal insulation alone, for solar control alone and
finally for solar control and enhanced thermal insulation com-
CHOOSING A GLASS
CHOOSING A GLASS
SOLAR AND LIGHT
PERFORMANCE – ASPECT
1.5
129
130
TL
RL
Ug
4-16-4 (2)
neutral
Clear
77
79
14
2.6
4-16 Ar 90% -4 (2)
neutral
G
70
72
17
1.5
neutral
Top NT
64
78
13
1.2
neutral
Top N+
61
78
13
1.1
(1) Neutral: used to describe a clear glass to which a coating has been applied.
(2) Identical values for 15 or 16 mm spacer.
www.yourglass.com
59 58 38 2.8
Slightly blueish
silver
Stopsol Supersilver clear #2
59 58 37 2.8
Clear metallic
Stopsol Classic clear #2
46 35 28 2.8
Amber silver
Stopsol Classic clear #1
45 34 35 2.8
Grey
Planibel grey
48 39 7 2.8
Metallic steel
Stopsol Supersilver grey #2
38 27 12 2.8
Silvered steel
Stopsol Supersilver grey #1
35 26 35 2.8
Silvered
Stopsol Classic grey #1
30 17 34 2.8
Metallic grey
Stopsol Classic grey #2
32 17 10 2.8
Green
Planibel green
46 65 11 2.8
Shiny green
Stopsol Supersilver green #2
37 47 27 2.8
Silver steel
Stopsol Supersilver green #1
35 47 37 2.8
Metallic green
Stopsol Classic green #2
28 28 20 2.8
Silvered
Stopsol Classic green #1
26 28 35 2.8
Bronze
Planibel bronze
51 45 8 2.8
Metallic bronze
Stopsol Classic bronze #2
34 20 12 2.8
Yellowish silver
Stopsol Classic bronze #1
32 19 34 2.8
Light blue
Planibel Azur
50 65 11 2.8
Dark Blue
Planibel Dark Blue
46 51 8 2.8
Shiny blue
Stopsol Supersilver Dark Blue #2 38 38 17 5.7
Silver blue
Stopsol Supersilver Dark Blue #1 36 38 32 2.8
Dark Blue
Planibel PrivaBlue
28 31 6 2.8
Deep blue
Stopsol Silverlight PrivaBlue #2
24 24 8 2.8
Silver blue
Stopsol Silverlight PrivaBlue #1
22 24 35 2.8
GREEN
GREY
CLEAR
Stopsol Supersilver clear #1
(1) General appearance of the glass (neutral, green, bronze, etc. to be checked against
samples.
(2) Identical values for 15 or 16 mm spacer.
Other factors: apart from the solar and thermal performance levels detailed in this table,
the level of acoustic and safety performance of the chosen product can easily be enhanced
by including 1 or 2 laminated panes of Stratobel safety glass and/or Stratophone acoustic
laminated safety-security glass in the sealed unit.
Note: the performance levels detailed opposite apply to glasses 6 mm thick. By varying the
thickness of the glass, other performance levels may be achieved.
CHOOSING A GLASS
SF LT LR Ug
Shiny silver
CHOOSING A GLASS
FS
Double glazing
6-16-4 (2)
BRONZE
Double glazing
Look (1)
AZUR
CHOOSING A GLASS
Look (1)
Base glass
DARK
BLUE
Note: thermal shock (see document on www.yourglass.com available to
download)
Breakage due to thermal shock occurs if there is too
much of a temperature difference between two areas of
the same annealed glass. If the temperature of the glass
rises, the glass expands; this does not present any difficulty if the temperature increase is uniform across the
entire sheet of glass. However, if part of the glass remains
cold, it will prevent the warm part from expanding freely.
This gives rise to tensile stress which may exceed the
mechanical resistance of the glass. If there is a risk of this
happening the glass should be thermally toughened or
heat-strengthened.
To assess the risk of thermal shock and whether heat
treatment is required, a sheet entitled ”Risk of Thermal
Shock” giving details of the information needed to make
the relevant calculation (type of glazing and frame, location of the building, blinds, shadows, etc.) is available on
the site www.yourglass.com and should be completed
before any calculation is made by the specifier or the
technical research department.
Solar control
PRIVABLUE
CHOOSING A GLASS
bined. Other performance levels may be achieved by varying
the thickness of the glass, primarily in the case of coloured
glasses. Details of such performance levels are available in the
Glass Configurator on the site www.yourglass.com.
131
Neutral
Sunergy Clear #2
52 61 12 1.8
Neutral
Sunergy Clear #2 + Top N+
44 59 11 1.1
Neutral
Thermobel Energy NT
44 73 13 1.1
Neutral
Thermobel Energy N+
42 70 11 1.1
Neutral
Stopray Vision-50 T
31 50 20 1.1
Neutral
Stopray Vision-50
Neutral
GREY
GREEN
CHOOSING A GLASS
Base
glass
Look (1)
Insulating glazing
6-12 Ar 90% -4 (2)
FS TL RL Ug
Planibel bronze + Top N+
37 44 7
Metallic bronze
Stopsol Classic bronze #2 + Top N+
22 19 12 1.1
Amber silver
Stopsol Classic bronze #1 + Top N+
20 19 34 1.1
Light blue
Planibel Azur + Top N+
41 64 10 1.1
Light blue
Sunergy Azur #2
37 50 10 1.8
28 49 19 1.1
Light blue
Sunergy Azur #2 + Top N+
32 49 9
1.1
Stopray Galaxy on Clearvision
22 41 17 1.1
Dark Blue
Planibel Dark Blue + Top N+
35 50 8
1.1
Green neutral
Stopray Elite
40 67 15 1.1
Shiny blue
27 38 17 1.1
Neutral
Stopray Safir
35 61 15 1.1
Stopsol Supersilver Dark Blue #2 +
Top N+
Shiny silver
Stopsol Supersilver clear #1 + Top N+
45 56 37 1.1
Silvered blue
46 56 37 1.1
Stopsol Supersilver Dark Blue #1 +
Top N+
26 37 32 1.1
N+
Dark Blue
Stopray Indigo 48 T
29 48 8
1.1
Deep blue
Sunergy Dark Blue #2
29 36 8
1.8
Deep blue
Sunergy Dark Blue #2 + Top N+
25 35 7
1.1
Dark Blue
Planibel PrivaBlue + Top N+
21 30 6
1.1
Dark Blue
Stopsol Silverlight PrivaBlue #2 + Top N+ 17 24 8
1.1
Silvered blue
Stopsol Silverlight PrivaBlue #1 + Top N+ 16 24 25 1.1
Stopsol Classic clear #2 + Top N+
32 34 28 1.1
Amber silver
Stopsol Classic clear #1 + Top N+
31 33 35 1.1
Grey
Planibel grey + TopN+
35 38 6
Metallic steel
Stopsol Supersilver grey #2 + Top N+
26 26 12 1.1
Silver
Stopray Silver
27 43 47 1.1
Dark grey
Stopray Titanium 37 T
26 36 6
Silver
Stopsol Supersilver grey #1 + Top N+
25 26 35 1.1
Metallic grey
Stopsol Classic grey #2 + Top N+
20 17 10 1.1
Silvered
Stopsol Classic grey #1 + Top N+
19 16 34 1.1
Green
Planibel green + Top N+
38 64 10 1.1
Green
Sunergy green #2
34 50 10 1.8
Green
Stopray Lime 61 T
32 60 10 1.1
Shiny green
Stopsol Supersilver green #2 + Top N+
29 46 26 1.1
Green
Sunergy green #2 + Top N+
29 49 9
Silver steel
Stopsol Supersilver green #1 + Top N+
28 46 36 1.1
Metallic green
Stopsol Classic green #2 + Top N+
20 27 20 1.1
Silvered
Stopsol Classic green #1 + Top N+
18 27 35 1.1
www.yourglass.com
1.1
1.1
1.1
AZUR
DARK BLUE
PRIVABLUE
Clear metallic
BRONZE
Bronze
Slightly blueish silver Stopsol Supersilver clear #2 + Top 132
FS TL RL Ug
1.1
CHOOSING A GLASS
Insulating glazing
6-12 Ar 90% -4 (2)
Look (1)
(1) General appearance of the glass (neutral, green, bronze, etc. to be checked against
samples.
(2) Identical values for 15 or 16 mm spacer.
Other factors: apart from the solar and thermal performance levels detailed in this table,
the level of acoustic and safety performance of the chosen product can easily be enhanced
by including 1 or 2 laminated panes of Stratobel safety glass and/or Stratophone acoustic
laminated safety-security glass in the sealed unit.
Note: the performance levels detailed opposite apply to glasses 6 mm thick. By varying the
thickness of the glass, other performance levels may be achieved.
CHOOSING A GLASS
Base
glass
CLEAR
CHOOSING A GLASS
Solar control and thermal insulation
133
Type of spandrels to be used for different types of vision glazing
Depending on the products and colours used, either complete
harmony or contrasting effects can be achieved.
Bronze
Planibel bronze + Blackpearl
Green
Planibel green + Blackpearl
Different functions can be combined within spandrels such as
thermal or sound insulation and protection against fire (Arvahcolor).
Grey
Planibel grey + Blackpearl
Azur
Planibel Azur + Blackpearl
Dark Blue
Planibel Dark Blue + Blackpearl
The following types of spandrels are available:
PrivaBlue
Planibel PrivaBlue + Blackpearl
>
CHOOSING A GLASS
>
Vision glazing
enamelled single glass: clear or coloured glass or glass with
a pyrolytic coating with an enamel coating and then thermally toughened or heat-strengthened
Thermobel
double glazing comprising the same glass as vision glass on
the outside and a Blackpearl glass on the inside; the coating
on the Blackpearl glass should be in position 4
Thermobel Top NT (#3)
a shadow box: a spandrel comprising a vision glazing combined
with an opaque background (metal sheet, etc.) to achieve a
partially opaque effect in harmony with the building.
Spandrel*
Planibel
Thermobel
Thermobel Top N+ (#3)
Themobel Energy N (#2)
Planibel Energy N + Blackpearl
Themobel Energy NT (#2)
Planibel Energy NT + Blackpearl
Stopsol
Classic clear (#1)
Classic clear #1 + Blackpearl
Classic clear (#2)
Classic clear #2 + Blackpearl
Vision glazing and spandrels should always be the same thickness.
Classic bronze (#1)
Classic bronze #1 + Blackpearl
Classic bronze (#2)
Classic bronze #2 + Blackpearl
Except in the case of a preliminary thermal study, spandrels
should always be heat-strengthened or thermally toughened.
In the case of spandrels made of double glazing positioned in
front of a structure made out of concrete or other insulating
material a thermal study should be conducted to assess the
glazing’s durability.
Classic green (#1)
Classic green #1 + Blackpearl
Classic green (#2)
Classic green #2 + Blackpearl
Classic grey (#1)
Classic grey #1 + Blackpearl
Classic grey (#2)
Classic grey #2 + Blackpearl
Supersilver clear (#1)
Supersilver clear #1 + Blackpearl
Supersilver clear (#2)
Supersilver clear #2 + Blackpearl
Supersilver green (#1)
Supersilver green #1 + Blackpearl
Supersilver green (#2)
Supersilver green #2 + Blackpearl
Supersilver grey (#1)
Supersilver grey #1 + Blackpearl
Supersilver grey (#2)
Supersilver grey #2 + Blackpearl
Supersilver Dark Blue (#1)
Supersilver Dark Blue #1 + Blackpearl
Supersilver Dark Blue (#2)
Supersilver Dark Blue #2 + Blackpearl
Silverlight PrivaBlue (#1)
Silverlight PrivaBlue #1 + Blackpearl
Silverlight PrivaBlue (#2)
Silverlight PrivaBlue #2 + Blackpearl
* For monolithic solutions, enamelled spandrels can be used.
www.yourglass.com
CHOOSING A GLASS
Spandrels hide the opaque sections and structure of façades.
In conjunction with vision glazing, they can be used to create
all-glass façades.
>
134
SPANDRELS
CHOOSING A GLASS
CHOOSING A GLASS
1.6
135
Spandrel*
Elite 67/37
Elite + Blackpearl
Safir 61/32
Safir + Blackpearl
Vision-50
Vision-50 + Blackpearl
Vision-50 T
Vision-50 T + Blackpearl
Galaxy 40/21 on Clearvision
Galaxy on Clearvision + Blackpearl
Silver 43/25
Silver + Blackpearl
Lime 61 T
Lime 61 T + Blackpearl
Titanium 37 T
Titanium 37 T + Blackpearl
Indigo 48 T
Indigo 48 T + Blackpearl
The level of safety afforded by various glasses is defined
according to a range of tests used to categorise their safety
performance (impact, burglary, bullet-proof, explosion-proof);
depending on the applications, thermally toughened or laminated glasses can be used to meet these requirements (see
table).
Laminated glass
Standards Toughened
glass
Stratobel Stratophone
Impact resistance and accident
prevention
EN 12600
Protection against defenestration EN 12600
✓
✓
✓
✓
✓
Burglar-proof
EN 356
✓
✓
Bullet-proof
EN 1063
✓
Explosion-proof
EN 13541
✓
The recommendations for harmonising colours for each product
are given for information only. They are based on a range of
tests designed to identify the best possible solution without
the latter necessarily being a perfect match (harmony).
It is not uncommon for an architect to seek to achieve a degree
of contrast between vision glazings and spandrels rather than
complete harmony.
In terms of safety, Stratobel and Stratophone perform to the
same level.
Some combinations of glass may give rise to more or less
marked differences in colour or reflection. Such differences
are due to the nature of the glasses used, the angle of vision,
surroundings, weather conditions, light intensity at a particular
time etc.
Depending on the local situation and regulations, you should
assess whether laminated double glazing should be used and
adapt it if necessary (for instance, double glazing with a single
laminated glass only provides protection against shocks and
injury on the laminated side of the glass).
For all these reasons, AGC advises clients to build prototypes
for each project and to view them on site during the construction phase to confirm their choice. AGC cannot be held
responsible for any differences in harmony, colour or reflection
in a façade.
Below are some examples as applied in most countries:
www.yourglass.com
CHOOSING A GLASS
Vision glazing
Stopray
SAFETY
In terms of sound insulation, Stratophone glasses perform
better than Stratobel glasses.
>
for roof glazings, laminated glass is essential to protect persons beneath the glass opening from injury from loose splinters, particularly if external objects fall onto it
>
for windows which extend to the floor, there is the risk that a
person may fall in the event of a shock or if the glass breaks;
only laminated glass provides adequate protection against
defenestration
>
for shop windows, depending on the value and size of the
goods to be protected, a laminated glass should be used, the
composition of which should be adapted to provide protection against burglary and theft.
CHOOSING A GLASS
CHOOSING A GLASS
CHOOSING A GLASS
136
1.7
137
www.yourglass.com
Different performance levels (E, EW, EI) can be achieved using
different glazings. The table below gives an overview of the
AGC range.
Performance
E
Polished wired glass
Pyrobel/Pyrobelite
CHOOSING A GLASS
Note: the performance of the joinery and hardware
should be equivalent to that of the glazing to achieve
an acceptable overall performance level. Classification
standards also exist for joinery and will help you choose
the correct solution.
✓
EW
✓
EI
✓
CHOOSING A GLASS
CHOOSING A GLASS
CHOOSING A GLASS
138
PROTECTION
AGAINST FIRE
1.8
139
1.9.1 Introduction
Examples
The various functions available (thermal insulation, solar control,
sound insulation, safety and security) above can be combined
with each other by adapting the composition of the glass.
Double glazing comprising a coated glass and a laminated glass with PVB
Dissymmetrical double glazing in which the thinner glass
has a coating in #2
The following functions are detailed in the tables:
>
>
>
>
>
>
>
>
>
>
>
>
Thermal insulation + enhanced thermal insulation
Sound insulation
Safety
Solar control
Enhanced thermal insulation + solar control
Enhanced thermal insulation + sound insulation
Enhanced thermal insulation + safety
Enhanced sound insulation + safety
Sound insulation + solar control
Solar control + safety
Sound insulation + solar control + safety
Decoration.
1.9.3 Interpreting the tables
On the following pages, various tables show the appropriate
glass to be used depending on the performance level(s)
required.
These tables show:
> Desired performance levels higher than those of standard
double glazing on a blue background with a tick (✓)
>
1.9.2 Glazing symbols
>
Glazing symbols
CHOOSING A GLASS
Single glazing
140
Additional performance levels achieved: in some cases, the
glass obtained also enhances other functions which were not
necessarily desired (for example, a laminated glass with PVB
always enhances acoustic performance even when used to
provide safety); these are shown by a tick (✓)
In some cases, enhanced thermal insulation can be obtained
by assembling the glass with a Top N+ or Top NT coating in
position 3. This is indicated with a * in the enhanced thermal
insulation column.
Single glazing thicker than above
Note: the tables have been simplified and do not include all
information, in particular the thickness of the glass.
Double glazing
1.9.4 Applications
▼ Thermal insulation and enhanced thermal insulation
Laminated glass with acoustic PVB or PVB
A distinction is drawn between:
>
Coated glass
Thermally toughened glass
www.yourglass.com
CHOOSING A GLASS
MULTIPLE FUNCTIONS
Standard thermal insulation, i.e. a Ug value of approximately
3.0 W/(m².K).
· Solution: standard double glazing with two clear or coloured
glasses (without a low-emissivity coating).
CHOOSING A GLASS
CHOOSING A GLASS
1.9
141
>
Composition being equal, it is always advisable to widen the
spacer within the double glazing assembly.
Sound insulation
Solutions
Most countries now have regulations on thermal insulation which require double glazing to be used which provides
enhanced thermal insulation.
In all the cases below, a low-emissivity coating may be included in
the double glazing to enhance the thermal insulation provided.
Standard thermal insulation
Solution
Enhanced
thermal
insulation
Safety
Sound
Enhanced
thermal
insulation
Top N+ in DGU
Safety
Sound
CHOOSING A GLASS
142
Disymmetrical
DGU
*
Stratobel in DGU
*
✓
✓
Stratophone in DGU
*
✓
✓
Solar
✓
* Enhanced thermal insulation may be achieved by using a TopN+ / TopNT coating in position 3.
Other functions are possible by altering the glass components – see below.
✓
▼ Safety
The acoustic performance of symmetrical double glazing is
lower than that of single glazing with a total equivalent thickness. To limit noise pollution, “acoustic” double glazing
should be used.
Solutions in ascending order of efficiency:
> double glazing with two glasses of different thicknesses
> double glazing with one or two laminated glasses with a PVB
interlayer (this glass is designed for safety purposes but also
provides enhanced sound insulation)
> double glazing with one or two laminated glasses with an
acoustic PVB interlayer
www.yourglass.com
Sound
Solar
Other functions are possible by altering the glass components – see below.
▼ Sound insulation
Safety
Solar
Standard
DGU
Enhanced thermal insulation
Solution
Enhanced
thermal
insulation
CHOOSING A GLASS
Enhanced thermal insulation, i.e. a Ug value of between 1.0
and 2.0 W/(m².K).
· Solution: double glazing with a low-emissivity coating
– compulsory in some countries and strongly recommended in terms of energy performance. Ug values below
1.0 W/(m²K) can be achieved using triple glazing.
There are several levels of safety and different glass products
meet the individual requirements at each of these levels:
> Safety of individuals against injury
(no risk of defenestration)
Solution: thermally toughened or laminated glass with PVB.
A double-glazing unit comprising a thermally toughened glass
and an annealed glass provides no protection against the risk
of injury if both panes of glass break at the same time. For
safety reasons, when a thermally toughened glass is used in
double glazed unit, the other glass should also be thermally
toughened or laminated.
To prevent accidents, the safety glass should be positioned on
the side on which shocks are likely to occur. Where such shocks
CHOOSING A GLASS
CHOOSING A GLASS
>
143
> Safety of individuals against injury
(risk of defenestration)
Solution: only laminated glass may be used.
▼ Solar control
Solution: solar control glass (coated and/or coloured glasses).
The solar-control glass is positioned on the outside of the
double glazed unit; the solar-control coatings are applied in
either position 1 (pyrolytic) or 2 (pyrolytic or Magnetron).
Solar control
Solutions
> Roof glazings / glass roofs
Enhanced
thermal
insulation
Safety
Sound
Solar
Solution: laminated glass must be used. It is placed on the
inside to protect individuals from injury due to flying pieces of
glass.
Energy N in DGU
✓
✓
> Protection against vandalism and burglary in shops,
isolated dwellings or homes located in unsafe districts
Stopray
in DGU
✓
✓
Stopsol
in DGU
*
✓
Sunergy
in DGU
✓
✓
Solution: laminated glass. The relevant type of laminated glass
according to the desired level of safety should be selected on
a case-by-case basis.
> Protection against firearms, explosions and fires
CHOOSING A GLASS
CHOOSING A GLASS
are likely to occur on either side of the glass, double glazed
units comprising two safety glasses (laminated or thermally
toughened) should be used.
Solution: laminated glass. Special cases should be assessed
individually.
Enhanced
thermal
insulation
Safety
DGU (with 2
toughened
glasses)
*
✓
DGU (with Stratobel/
Stratophone)
*
✓
✓
DGU (with Stratobel/
Stratophone)
*
✓
✓
144
Sound
Solar
* Enhanced thermal insulation may be achieved by using a TopN+ / TopNT coating in position 3.
Other functions are possible by altering the glass components – see below.
* Enhanced thermal insulation may be achieved by using a Top N+ / Top NT coating in position 3.
Other functions are possible by altering the glass components – see below.
www.yourglass.com
CHOOSING A GLASS
CHOOSING A GLASS
Safety
Solutions
145
Solution: some solar-control coatings are dual-function and
combine low-emissivity (enhanced thermal insulation). If this is
not the case, a Top N+ coating may be applied in position 3.
Thermal insulation + solar control
Solutions
Enhanced
thermal
insulation
Safety
Sound
Solar
Energy N in DGU
✓
✓
Stopray
in DGU
✓
✓
Stopsol and Top N+ in DGU
✓
Sunergy
in DGU or
Sunergy and Top N+ in DGU
✓
▼ Enhanced thermal insulation
+ sound insulation
Solution: enhanced thermal insulation may be achieved in an
acoustic glazing by using a Top N+ / Top NT coating in position 3.
Thermal insulation + sound insulation
Solutions
Enhanced
thermal
insulation
Safety
Sound
Top N+
in dissymmetrical
DGU
✓
Top N+
and one or two
Stratobel in DGU
✓
✓
✓
Top N+
and one or two
Stratophone in DGU
✓
✓
✓
CHOOSING A GLASS
CHOOSING A GLASS
▼ Enhanced thermal insulation
+ solar control
Solar
✓
✓
✓
Other functions are possible by altering the glass components – see below.
146
www.yourglass.com
CHOOSING A GLASS
CHOOSING A GLASS
Other functions are possible by altering the glass components – see below.
147
Solution: enhanced thermal insulation may be achieved in a
safety glass by using a Top N+ / Top NT coating in position 3.
Thermal insulation + safety
Solutions
Enhanced
thermal
insulation
Safety
✓
✓
Sound
Solar
▼ Sound insulation + safety
Solution: double glazing comprising one (or two) laminated
glass(es) with PVB or acoustic PVB.
Enhanced
thermal
insulation
Safety
Sound
One or two Stratobel in DGU
*
✓
✓
One or two Stratophone in DGU
*
✓
✓
Sound insulation + safety
Solutions
CHOOSING A GLASS
CHOOSING A GLASS
▼ Enhanced thermal insulation
+ safety
Solar
N+
Top in DGU
(with 2 toughened glasses)
N+
Top in DGU
(with Stratobel/
Stratophone)
✓
✓
✓
Top N+ in DGU
(with Stratobel/
Stratophone)
✓
✓
✓
Other functions are possible by altering the glass components – see below.
148
www.yourglass.com
CHOOSING A GLASS
CHOOSING A GLASS
* Enhanced thermal insulation may be achieved by using a Top N+ / Top NT coating in position 3.
Other functions are possible by altering the glass components – see below.
149
N
Safety
Sound
Solar
Energy
in DGU
✓
✓
✓
Stopray
in DGU
✓
✓
✓
Stopsol
in DGU
*
✓
✓
Sunergy
in DGU
✓
✓
✓
EnergyN in DGU
(with Stratobel/
Stratophone)
Stopray in DGU
(with Stratobel/
Stratophone)
CHOOSING A GLASS
Enhanced
thermal
insulation
✓
✓
✓
✓
✓
✓
✓
✓
Stopsol in DGU
(with Stratobel/
Stratophone)
*
✓
✓
✓
Sunergy in DGU
(with Stratobel/
Stratophone)
✓
✓
✓
✓
* Enhanced thermal insulation may be achieved by using a Top N+ / Top NT coating in position 3.
Other functions are possible by altering the glass components – see below.
www.yourglass.com
▼ Solar control + safety
Solution: double glazing comprising one (or two) laminated
glass(es) with PVB or acoustic PVB. The external component of
the double glazed unit includes a coated solar-control glass.
Enhanced
thermal
insulation
Safety
Sound
Solar
EnergyN in DGU
(with Stratobel/
Stratophone)
✓
✓
✓
✓
Stopray in DGU
(with Stratobel/
Stratophone)
✓
✓
✓
✓
Stopsol in DGU
(with Stratobel/
Stratophone)
*
✓
✓
✓
Sunergy in DGU
(with Stratobel/
Stratophone)
✓
✓
✓
✓
Solar control + safety
Solutions
CHOOSING A GLASS
Solution: dissymmetrical double glazing or double glazing
comprising one (or two) laminated glass(es) with PVB or
acoustic PVB. The external component of the double glazed
unit includes a coated solar control glass.
Sound insulation + solar control
Solutions
150
* Enhanced thermal insulation may be achieved by using a Top N+ / Top NT coating in position 3.
Other functions are possible by altering the glass components – see below.
CHOOSING A GLASS
CHOOSING A GLASS
▼ Sound insulation
+ solar control
151
▼ Sound insulation
+ solar control + safety
Once all the specifications of the glass have been determined,
they must then undergo technical validation:
Solution: double glazing comprising one (or two) laminated
glass(es) with PVB or acoustic PVB. The external component of
the double glazed unit includes a coated solar-control glass.
Sound insulation + solar control + safety
Solutions
Enhanced
thermal
insulation
Safety
Sound
Solar
EnergyN in DGU
(with Stratobel/
Stratophone)
✓
✓
✓
✓
Stopray in DGU
(with Stratobel/
Stratophone)
✓
✓
✓
✓
Stopsol in DGU
(with Stratobel/
Stratophone)
*
✓
✓
✓
Sunergy in DGU
(with Stratobel/
Stratophone)
✓
✓
✓
✓
>
>
>
>
>
The size of the glass, the loads to be considered and installation will all determine which thicknesses are required
Thermal shock: a thermal shock investigation is recommended
Temperature and behaviour of insulating glazing: checks
must be conducted to ensure that the permissible temperatures for the glass components and putty-mastic are not
exceeded
An appropriate sealant should be chosen for the relevant
application
etc.
CHOOSING A GLASS
CHOOSING A GLASS
TECHNICAL
VALIDATION
1.10
* Enhanced thermal insulation may be achieved by using a Top N+ / Top NT coating in position 3.
Other functions are possible by altering the glass components – see below.
▼ Decoration
152
Solutions:
> Patterned glasses (depending on design)
> Matt-finish glasses (depending on assembly)
> Coloured glasses
> Painted glasses
> Enamelled or silk-screen printed glasses
> Decorative laminated glasses
> Built-in Georgian bars
> Built-in blinds
> Inclusion of various decorative features.
www.yourglass.com
CHOOSING A GLASS
CHOOSING A GLASS
For façade applications or interior design, many different decorative glasses can also be incorporated into the double glazed
unit.
153
FEASIBILITY
The following feasibility restrictions should be adhered to when
selecting components:
>
>
>
>
the maximum possible sizes for a sheet of glass are 6 m by
3.21 m; most products designed for use in façades are available in these sizes
depending on the factories and products, the maximum permissible sizes for processing vary considerably
not all products can be processed in all ways: please contact
us for details; the glass is heavy: 2.5 kg per mm² and per mm
thickness; the weight of glasses should be verified so that they
can be handled in the factory and on site
not all coloured and coated glasses are available in all thicknesses; the 6-mm and 8-mm thicknesses are the most flexible.
1.12
CASE STUDIES
Below are two practical examples of the stages involved in
choosing a glazing based on the comments above.
1.12.1 Tertiary building
CHOOSING A GLASS
CHOOSING A GLASS
1.11
For an office building located in a town (wind pressure of 1,000
Pa), an architect wants to install glazing with the following properties:
> panes
of glass measuring 2.5 m x 1.5 m
level of light reflection (mirror effect) and silvered look
solar factor < 30 %
highest possible level of light transmission
Ug = 1.1 W/(m².K)
Acoustic requirements: Rw (C; Ctr) of at least 35 (-1; -4) dB.
> high
>
>
>
>
The case can be solved as follows:
> A
mechanical calculation (Belgian standard) shows that
the minimum acceptable thickness corresponds to a double
glazed unit: 8 + 8, 10 + 6 or 8 + 55.
> In
terms of sound insulation, an 8 + 8 double glazed unit
cannot achieve an Rw level of 35 dB; a 10-15-6 composition
equivalent to 38 (1; -4) dB or an 8-15 - 55.2 Stratobel equivalent to 41 (-2; -4) dB is needed; since there are no safety
requirements, a 10-15-6 composition is satisfactory
> T
he
solar-performance table for various glasses (page …)
shows that two products meet these requirements:
· Stopray Silver 43/25
154
If safety (defenestration) or theft prevention are issues, simply
substitute at least one of the components in the double glazed
unit with a laminated glass.
Finally, the risk of thermal shock should be calculated.
www.yourglass.com
CHOOSING A GLASS
CHOOSING A GLASS
· Stopsol Supersilver grey position 1 and Top N+.
155
1.12.2 Conservatory
The size of the glazed surfaces in conservatories make it
extremely important to choose a form of thermal insulation
which will limit losses as much as possible; we would generally
advise the use of products with a Ug value of 1.1 W/(m².K).
CHOOSING A GLASS
CHOOSING A GLASS
2 DECO­RATION
AND FURNISHINGS
For glazed areas of roofs, to avoid overheating and glare in the
summer when the sun is high it is a good idea to use a highperformance solar-control glass, for example Stopray Silver
(combined with a laminated glass for safety).
156
www.yourglass.com
CHOOSING A GLASS
CHOOSING A GLASS
For vertical partitions, depending on the direction and the
level of sunlight, either double glazing with a Top N+ coating to
provide thermal insulation or double glazing with an Energy N
coating to limit heat gain should be used.
157
2.1.1 Appearance
>
>
Transparent solutions provide the greatest possible transparency (passage of light); objects and people are clearly visible
through the glass
Translucent solutions, while enabling you to see objects
behind the glass, at the same time provide a degree of privacy; the shapes of objects and people can be made out
through the glass
>
>
>
>
>
ground: floor plates, stairs, pedestrian bridges
balustrades
walls: wall cladding
partitions
furniture: in horizontal applications such as tables, consol
tables and shelves or in vertical applications such as decoration for furniture
doors: doors with glass such as furniture doors, sliding or
non-sliding wardrobe doors, entry doors to buildings
two-way mirrors
frames
others.
Depending on the products used, the level of light transmission in a translucent glass may be just as high as that of clear
glass
>
Opaque solutions hide the surfaces they cover or objects
positioned behind the glass; objects and people cannot be
seen through the glass
>
The diagram below shows (left to right) the effects of transparent, translucent and opaque glasses.
2.1.4 Safety
Transparency, translucence and opacity
Transparency
CHOOSING A GLASS
This will determine the type of glass used from the point of
view of particular functions required in terms of the safety,
appearance or installation of the product (bonding, thicknesses
or specific sizes, etc.):
>
158
2.1.3 Type of application
Translucence
Opacity
>
>
>
Some products are available in a safety version:
>
thermally toughened glass
>
laminated glass
>
glass with a Safe film
>
fire-resistant glass.
Some applications such as floors or balustrades, for example,
automatically require laminated glass to be used for safety reasons. For other applications such as furniture, wall cladding,
etc., most countries have national regulations requiring safety
glass to be used in certain situations.
2.1.2 Colour or graphics
All solutions are available - neutral, coloured, metallic or patterned.
www.yourglass.com
CHOOSING A GLASS
When choosing a decorative glass, several factors should be
noted.
CHOOSING A GLASS
CHOOSING A GLASS
FACTORS INFLUENCING
THE CHOICE OF GLAZING
2.1
159
2.1.5 Installation
Decorative products may be installed by laminating, gluing,
mechanical fixing, pressure gaskets and other methods.
Some products are subject to installation restrictions: for
example, you should check that a silicone used to glue Lacobel
glass is compatible.
SUMMARY TABLES
The following tables will help you to choose a glass according
firstly to its look (three tables for transparent, translucent and
opaque solutions), and thereafter according to colour and graphics, type of application and functions.
CHOOSING A GLASS
CHOOSING A GLASS
2.2
Some products are restricted to interior use while others can be
used both indoors and out.
For more details, please see the detailed installation brochures
for these products.
2.1.6 Existing functions
In the tables below, a distinction is drawn between:
>
existing safety or sound-insulation functions afforded by the
standard product
>
additional functions which may be added to the product
through further processing.
160
www.yourglass.com
CHOOSING A GLASS
CHOOSING A GLASS
The desired functions are dependent on the application
required and the specific rules to be observed.
161
162
All-glass balustrade system
Laminated, fire-resistant glasses
Balustra
Pyrobel / Pyrobelite
(1) These products may only be used in laminated glass.
(2) In most countries, regulations require the use of safety glass
(toughened, laminated, with a Safe film) for certain applications.
(3) Processing may be possible depending on pattern.
✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
Applications
Use
Safety
✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓ ✓
✓ ✓ ✓
Intrinsic function.
Additional function through processing.
✓ ✓
✓ ✓
✓ ✓ ✓
✓ ✓
✓
(3) (3)
Sound
Sound
CHOOSING A GLASS
(3)
Acoustic PVB
laminating
✓ ✓
Patterned glasses
Imagin
Imagin wired
Laminated safety glasses with glass or decorative interlayer ✓ ✓
Patterned wired glasses
Patterned glasses
Anti-glare glasses for framing
✓
✓ ✓ ✓
✓ ✓ ✓
✓ ✓ ✓
✓ ✓ ✓
✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
Intrinsic function.
Additional function through processing.
✓
✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
Stratobel Design
Graphics
Polished wired glass
Matobel
Hard-coated glasses
Description
Safety
Fire-resistant
Thermally toughened
Laminating, safety Safe Film
Interior
Exterior
Framing
Two-way mirrors
Doors (2)
Furniture (2)
Partitions (2)
Walls (2)
Balustrade (1)
Flooring (1)
Blackpearl
Glamatt
Neutral or coloured
Product
(1) These products may only be used in laminated glass.
(2) In most countries, regulations require the use of safety glass (toughened,
laminated, with a Safe film) for certain applications.
Laminated acoustic safety-security glazing
Stratophone
Stratobel Color Rainbow
Laminated safety glasses with glass or decorative interlayer
Body-tinted base glasses
Laminated safety glasses with PVB interlayer(s)
Planibel Coloured
Stratobel
Use
CHOOSING A GLASS
Acoustic PVB
laminating
CHOOSING A GLASS
www.yourglass.com
Stratobel Color Standard
Clear base glasses – available as antibacterial glass
Description
Applications
Fire-resistant
Thermally toughened
Laminating, safety Safe Film
Interior
Exterior
Framing
Two-way mirrors
Doors (2)
Furniture (2)
Partitions (2)
Walls (2)
Balustrade (1)
Flooring (1)
Planibel Clear, Clearvision and Linea Azzurra
Neutral or coloured
Product
CHOOSING A GLASS
2.2.1 Transparent glasses
163
164
Laminated safety glasses with PVB
Painted glasses
Acid-etched painted glass
(1) These products may only be used in a safety version.
(2) In most countries, regulations require the use of safety glass
(toughened, laminated, with a Safe film) for certain applications.
✓
✓
✓ ✓ ✓
✓ ✓ ✓
✓ ✓ ✓
Applications
Use
✓ ✓
✓ ✓
✓
✓
✓ ✓ ✓
✓
✓ ✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓
✓ ✓ ✓ ✓
✓
✓ ✓ ✓ ✓ ✓
✓ ✓ ✓ ✓
✓
✓ ✓ ✓ ✓
✓
✓ ✓ ✓ ✓
✓
Intrinsic function.
Additional function through processing.
Mirox New Generation Ecological Copper- free and lead-free environmentally friendly
Mirox 3G
Ecological mirror -ROHS -available as antibacterial glass
Sanilam Easycut
Laminated double sided safety mirrors Reflective
Stratobel Color Pure White
Lacobel
Matelac
White
Laminated safety glasses with PVB interlayer(s)
Painted glasses – available as antibacterial glass
Silvered, acid-etched glasses
Painted, acid-etched glasses
Description
✓
✓
✓
✓
✓ ✓ ✓ ✓ ✓
✓
✓
✓ ✓
✓
✓ ✓ ✓ ✓ ✓
Intrinsic function.
Additional function through processing.
✓ ✓
✓ ✓
✓
Safety
(3) (3)
Fire-resistant
Thermally toughened
Laminating, safety
Safe Film
Interior
Exterior
Doors (2)
Furniture (2)
Partitions (2)
Walls (2)
Balustrade (1)
Flooring (1)
Stratobel Color
Lacobel
Matelac Silver
Matelac
Coloured or metallic
Product
Safety
Sound
Sound
(3)
CHOOSING A GLASS
Acoustic PVB
laminating
CHOOSING A GLASS
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(1) These products may only be used in a safety version.
(2) In most countries, regulations require the use of safety glass
(toughened, laminated, with a Safe film) for certain applications.
(3) Processing may be possible depending on the pattern.
Lacomat
Painted, matt-finish glasses
Matelux
Acid-etched glasses – available as antislip glass
Matelux Stopsol
Acid-etched coated glass
Sandblasted glsass
Sandblasted glass
Stratobel Color Standard Laminated safety glass with glass or decorative interlayer
Stratobel Color Rainbow
Patterned glasses
Use
Fire-resistant
Thermally toughened
Laminating, safety
Safe Film
Interior
Exterior
Doors (2)
Furniture (2)
Partitions (2)
Walls (2)
Balustrade (1)
Flooring (1)
Neutral or coloured opalescent
Description
Applications
CHOOSING A GLASS
2.2.3 Opaque glasses
Acoustic PVB
laminating
Imagin
Graphics
Product
CHOOSING A GLASS
2.2.2 Translucent glasses
165
2.3.1 Office partition
2.3.2 Cupboard door
For an office in a town, an interior designer wants to install
glass with the following features:
For a new range of cupboards, a designer wants to incorporate
glass with the following features:
>
translucent, matt-finish look
>
red opaque appearance
>
sound insulation: Rw (C; Ctr) at least 35 (-2; -5) dB
>
safety: 2B2 according to standard EN 12600
>
safety: minimum of 1B1 according to standard EN 12600
>
glass measuring 2.44 m x 0.9 m.
>
glazings 2.5 m high and 1 m wide in a glazing rebate only on
the lower and upper sides.
Stages:
>
Deciding on aesthetic options: the following options are
available according to the table on “Opaque Glasses”:
Lacobel, Matelac
>
There are two possible looks: Lacobel (shiny) and Matelac
(satin-finish). The designer can look at samples to help make
a decision
>
Deciding on the technical solution: to achieve a performance
level of 2B2, Lacobel or Matelac must be made safe with a
Safe film. A thickness of 4 mm is possible.
Stages:
CHOOSING A GLASS
>
166
Given the large sizes of the glass and installation on two supported sides only, a mechanical calculation (wind pressure
inside the building of 450 Pa) shows that the glass used must
be at least 88.2 mm thick
>
The 1B1 safety requirement for the partition requires a laminated Stratobel product with two PVB films
>
To meet the sound-insulation requirement of 35 (-2; -5) dB,
no less than a 55.1 Stratobel or 33.1 Stratophone glass
should be used
>
Deciding on aesthetic options: the following options are
available according to the table on “Translucent Glasses”:
Lacomat, Matelux, sandblasted glass, standard Stratobel
Colour with matt PVB and Imagin Satinbel or Screen patterned glass
>
Since Lacomat cannot be laminated, this option can be ruled
out. Care should be taken to check that the Imagin patterns
can be laminated (see Imagin): both Satinbel and Screen can
be laminated
>
There are therefore five different looks which may suit the
designer’s requirements and s/he can look at samples to
help make a decision.
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CHOOSING A GLASS
CASE STUDIES
CHOOSING A GLASS
CHOOSING A GLASS
2.3
167