tone glass
DESCRIPTION
Tone GlassTRANSCRIPT
Safety That Optimizes Performance & Keeps The Noise Down
Stay Calm With
50db Sound Attenuation
Acoustic Glass
Professional planners and architects need to select appropriate glazing
solutions for commercial buildings. With the various factors that have to be
considered in selection, this could be a daunting task, such as meeting the
original design concept, the solar, optical and acoustical performance
requirements.
Glass has been known to be a poor sound attenuatorby property, but with
technological combinations of various glass types and acoustical frames,
sound can effectively be reduced even up to 50dB, intelligently.
Glass As A Sound Barrier
Glass used in building construction provides substantial benefits. To optimize the
acoustical performance of glass for specific applications, the points to be considered are
the mass, stiffness and damping characteristics. The only effective way to increase
performance is to increase the thickness, because stiffness and damping cannot be
changed.
Commercial buildings use a wide variety of glass types, which may enhance solar control
and safety performance. Monolithic glass will provide the lowest acoustical performance
levels. Laminated glass can provide higher acoustical performance levels than
monolithic glass due to the sound damping characteristics of the polyvinyl butyral (PVB)
interlayer used to permanently bond the glass plies together. And, insulating glass tends
to provide the highest STL potential of any glass product due to the versatility of the
product and its ability to combine monolithic and laminated glass plies.
How Sound Penetrates
Sound transmission can occur through various sources other than glass or windows. The
complete building envelope has to be considered as sound may be transmitted through
many components of a building structure and this transmitted sound may be absorbed in
varying degrees by other components of the building. Another condition that can occur in
building construction is sound flanking where sound from one side of an acoustical
barrier can find alternative routes through pipes, HVAC ducts, electrical conduits, outlets,
plumbing, drains and wall vents.
Acoustic Glass
Professional planners and architects need to select appropriate glazing
solutions for commercial buildings. With the various factors that have to be
considered in selection, this could be a daunting task, such as meeting the
original design concept, the solar, optical and acoustical performance
requirements.
Glass has been known to be a poor sound attenuatorby property, but with
technological combinations of various glass types and acoustical frames,
sound can effectively be reduced even up to 50dB, intelligently.
Glass As A Sound Barrier
Glass used in building construction provides substantial benefits. To optimize the
acoustical performance of glass for specific applications, the points to be considered are
the mass, stiffness and damping characteristics. The only effective way to increase
performance is to increase the thickness, because stiffness and damping cannot be
changed.
Commercial buildings use a wide variety of glass types, which may enhance solar control
and safety performance. Monolithic glass will provide the lowest acoustical performance
levels. Laminated glass can provide higher acoustical performance levels than
monolithic glass due to the sound damping characteristics of the polyvinyl butyral (PVB)
interlayer used to permanently bond the glass plies together. And, insulating glass tends
to provide the highest STL potential of any glass product due to the versatility of the
product and its ability to combine monolithic and laminated glass plies.
How Sound Penetrates
Sound transmission can occur through various sources other than glass or windows. The
complete building envelope has to be considered as sound may be transmitted through
many components of a building structure and this transmitted sound may be absorbed in
varying degrees by other components of the building. Another condition that can occur in
building construction is sound flanking where sound from one side of an acoustical
barrier can find alternative routes through pipes, HVAC ducts, electrical conduits, outlets,
plumbing, drains and wall vents.
Notes:
Pyrolytic Solar Reflective Glasses can be assembled with coating outside or in contact with the air
cavity (surface #1 or #2). For Low E or Solar Low E whether Pyrolytic or soft coated the coating will
have to be in surface #2 or #3 of the unit to take advantage of the Low E characteristic. For units with
Polycarbonate, the compatibility of sealants with Polycarbonate is to be confirmed. Glass shapes
shall comply with insulating process requirements.
Ideal Applications Of Tone Glass
Airports
High decibel sounds from aircraft take-off and landing can be attenuated in airport
terminals, offering passengers clear views and noise control for a peaceful transitional
experience during their travels.
Hotels
Hotel buildings can make effective use of Tone Glass to match their safety and noise
control requirements between busy traffic circulation areas and high noise level
locations, offering visitors a confortable and serene experience.
Recording Studios
The application of Tone Glass in music and recording studios supports the external
environment more than the internal, in the fact that it prevents the noise levels from
leaking out, so as to cause negligible disturbance to nearby office/residential
locations.
Other Acoustic Applications
As per requirement, Tone Glass can be configured to meet the most urgent
requirements in diminishing noise, like in hospitals - where patient serenity is of
importance, or in the case of custom requirements like glass-walled discotheques, etc.
Notes:
Pyrolytic Solar Reflective Glasses can be assembled with coating outside or in contact with the air
cavity (surface #1 or #2). For Low E or Solar Low E whether Pyrolytic or soft coated the coating will
have to be in surface #2 or #3 of the unit to take advantage of the Low E characteristic. For units with
Polycarbonate, the compatibility of sealants with Polycarbonate is to be confirmed. Glass shapes
shall comply with insulating process requirements.
Ideal Applications Of Tone Glass
Airports
High decibel sounds from aircraft take-off and landing can be attenuated in airport
terminals, offering passengers clear views and noise control for a peaceful transitional
experience during their travels.
Hotels
Hotel buildings can make effective use of Tone Glass to match their safety and noise
control requirements between busy traffic circulation areas and high noise level
locations, offering visitors a confortable and serene experience.
Recording Studios
The application of Tone Glass in music and recording studios supports the external
environment more than the internal, in the fact that it prevents the noise levels from
leaking out, so as to cause negligible disturbance to nearby office/residential
locations.
Other Acoustic Applications
As per requirement, Tone Glass can be configured to meet the most urgent
requirements in diminishing noise, like in hospitals - where patient serenity is of
importance, or in the case of custom requirements like glass-walled discotheques, etc.
Sound reduction rating Glass TypePerceived sound
reduction (%)
Single glass 4mm
Double glazing 4/12/3*
Double glazing 6/12/6
Double glazing 6.38**/12/4
* 4mm float glass / 12mm air space / 4mm float glass
** 6.38 = 6mm laminated glass
10
20
25
57
FIELD SALES REPRESENTATIVES
We're here to help with design assistance, budget costing, return on
investment costing, spec writing and review as well as act as a liaison
between architects and glazing contractors. We also work closely with the
glazing contractor to offer assistance with initial costs, final pricing
negotiations, product information and job site inspections. Just ask.
Sezliaise™
Contact ourSales Team for further information and warranties.
To fix a consultation or obtain additional literature contact:
Ritesh : 91-22-28665100
www.sezalglass.com
Construction Double or Triple Glazed Unit
Thickness Range for each Glass Lite
Overall Unit Thickness Range
Width Range of Aluminium Spacer
3mm to 15mm
10mm to 52mm
5.5mm to 24mm
Material Types
Process Options
1GUs for frames or Structural Glazing, Stepped
Glass with 1, 2, 3 or 4 Sided Step, Point Fixing
Systems.
Cavity Filling Air, Inert Gas, Special Gases
Glass Shapes
Max. Size of Unit
Min. Size of Glass
Any shape with Linear or Curved Edges
3700 x 2500mmmm
350 x 180mmmm
Glass-Figured/ Patterned, Clear, Extra Clear,
Body Tinted, Solar Reflective, Pyrolytic or Soft
Coated Low E & Solar low E (Annealed Heat
Strengthened or Fully Toughened),
Polycarbonate.
PRODUCT SPECIFICATIONS: TONE GLASS
Sound reduction rating Glass TypePerceived sound
reduction (%)
Single glass 4mm
Double glazing 4/12/3*
Double glazing 6/12/6
Double glazing 6.38**/12/4
* 4mm float glass / 12mm air space / 4mm float glass
** 6.38 = 6mm laminated glass
10
20
25
57
FIELD SALES REPRESENTATIVES
We're here to help with design assistance, budget costing, return on
investment costing, spec writing and review as well as act as a liaison
between architects and glazing contractors. We also work closely with the
glazing contractor to offer assistance with initial costs, final pricing
negotiations, product information and job site inspections. Just ask.
Sezliaise™
Contact ourSales Team for further information and warranties.
To fix a consultation or obtain additional literature contact:
Ritesh : 91-22-28665100
www.sezalglass.com
Construction Double or Triple Glazed Unit
Thickness Range for each Glass Lite
Overall Unit Thickness Range
Width Range of Aluminium Spacer
3mm to 15mm
10mm to 52mm
5.5mm to 24mm
Material Types
Process Options
1GUs for frames or Structural Glazing, Stepped
Glass with 1, 2, 3 or 4 Sided Step, Point Fixing
Systems.
Cavity Filling Air, Inert Gas, Special Gases
Glass Shapes
Max. Size of Unit
Min. Size of Glass
Any shape with Linear or Curved Edges
3700 x 2500mmmm
350 x 180mmmm
Glass-Figured/ Patterned, Clear, Extra Clear,
Body Tinted, Solar Reflective, Pyrolytic or Soft
Coated Low E & Solar low E (Annealed Heat
Strengthened or Fully Toughened),
Polycarbonate.
PRODUCT SPECIFICATIONS: TONE GLASS
Color Rendering Index (CRI)
The ability of transmitted daylight through the glazing to portray a variety of colors
compared to those seen under daylight without the glazing. Scale is 1 - 100. For instance,
a low CRI causes colors to appear washed out, while a high CRI causes colors to appear
vibrant and natural. In commercial glass, CRI indicates the effect the specific glass
configuration has on the appearance of objects viewed through the glass. Heat gain is
heat added to a building interior by radiation, convection or conduction.
Heat Transfer Methods
Heat transfer occurs through convection, conduction or radiation (also referred to as
"emission"). Convection results from the movement of air due to temperature differences.
For instance, warm air moves in an upward direction and, conversely, cool air moves in a
downward direction. Conduction results when energy moves from one object to another.
Radiation, or emission, occurs when heat (energy) can move through space to an object
and then is transmitted, reflected or absorbed.
Light to Solar Gain
Ratio of the visible light transmittance to the Solar Heat Gain Coefficient. A higher LSG
ratio means sunlight entering the room is more efficient for daylighting, especially for
summer conditions where more light is desired with less solar gain. This ratio is the
measurement used to determine whether the glazing is "spectrally selective."
Low-E Coatings
Relatively neutral in appearance, low-E coatings reduce heat gain or loss by reflecting
longwave infrared energy (heat) and, therefore decrease the U-Value and improve energy
efficiency. Current sputter-coated low-E coatings are multilayered, complex designs
engineered to provide high visible light transmission, low visible light reflection and
reduce heat transfer.
GlossaryTechnical Data
Color Rendering Index (CRI)
The ability of transmitted daylight through the glazing to portray a variety of colors
compared to those seen under daylight without the glazing. Scale is 1 - 100. For instance,
a low CRI causes colors to appear washed out, while a high CRI causes colors to appear
vibrant and natural. In commercial glass, CRI indicates the effect the specific glass
configuration has on the appearance of objects viewed through the glass. Heat gain is
heat added to a building interior by radiation, convection or conduction.
Heat Transfer Methods
Heat transfer occurs through convection, conduction or radiation (also referred to as
"emission"). Convection results from the movement of air due to temperature differences.
For instance, warm air moves in an upward direction and, conversely, cool air moves in a
downward direction. Conduction results when energy moves from one object to another.
Radiation, or emission, occurs when heat (energy) can move through space to an object
and then is transmitted, reflected or absorbed.
Light to Solar Gain
Ratio of the visible light transmittance to the Solar Heat Gain Coefficient. A higher LSG
ratio means sunlight entering the room is more efficient for daylighting, especially for
summer conditions where more light is desired with less solar gain. This ratio is the
measurement used to determine whether the glazing is "spectrally selective."
Low-E Coatings
Relatively neutral in appearance, low-E coatings reduce heat gain or loss by reflecting
longwave infrared energy (heat) and, therefore decrease the U-Value and improve energy
efficiency. Current sputter-coated low-E coatings are multilayered, complex designs
engineered to provide high visible light transmission, low visible light reflection and
reduce heat transfer.
GlossaryTechnical Data
Solar Heat Gain Coefficient (SHGC)
The percent of solar energy incident on the glass that is transferred indoors, both directly
and indirectly through the glass. The direct gain portion equals the solar energy
transmittance, while the indirect is the fraction of solar incident on the glass that is
absorbed and re-radiatedor convected indoors.
Solar/Reflective Coatings
Typically, highly reflective coatings that reduce solar heat gain through reflection and
absorption. Though very effective at reducing heat gain, visible light transmittance is
generally low and U-Values are not as energy efficient as low-E coatings.
Transmittance Percent
Percentage of incident ultraviolet energy that is directly transmitted through the glass.
Long-termexposure to UV light may result in fabric and pigment fading, plastic
deterioration and changes to the appearance of many types of wood.
UV
Ultraviolet radiant energy from the sun having a wavelength range of 300 to 380 nm with
airmass of 1.5.
U-Value (U-Factor)
A measure of the heat gain or loss through glass due to the difference between indoor &
outdoor air temperatures. It is also referred to as the overall coefficient of heat transfer. A
lower U-Value indicates better insulating properties. The units are Btu/(hr)(ft2)(°F).
Relative Heat Gain (RHG)
The total heat gain through glass for a specific set of conditions. This value considers
indoor/outdoor air temperature differences and the effect of solar radiation.
R-Value
A measure of the resistance of the glazing to heat flow. It is determined by dividing the U-
Value into 1. A higher R-Value indicates better insulating properties of the glazing. R-Value
is not typically used as a measurement for glazing products and is referenced here to
help understand U-Value.
Shading Coefficient (SC)
An alternative measure of the heats gain through glass from solar radiation. Specifically,
the shading coefficient is the ratio between the solar heat gain for a particular type of
glass and that of double strength clear glass. A lower shading coefficient indicates lower
solar heat gain.
Solar Energy
Radiant energy from the sun having a wavelength range of 300 to 4000 nm, which
includes UV (300 to 380 nm), visible light (380 to780 nm) and near infrared energy (780 to
4000 nm).
% Reflectance Out - percentage of incident solar energy directly reflected from the glass
back outdoors.
% Absorptance - percentage of incident solar energy absorbed into the glass.
% Transmittance - percentage of incident solar energy directly transmitted through the
glass.
The sum of percent reflectance out + absorptance out + transmittance = 100%. An
additional consideration is emission, or emissivity. This refers to the reradiation of
absorbed energy that can be emitted toward both the exterior and interior of the building.
Emissivity is controlled through the use of low-emissivity, or low-E coatings.
Solar Heat Gain Coefficient (SHGC)
The percent of solar energy incident on the glass that is transferred indoors, both directly
and indirectly through the glass. The direct gain portion equals the solar energy
transmittance, while the indirect is the fraction of solar incident on the glass that is
absorbed and re-radiatedor convected indoors.
Solar/Reflective Coatings
Typically, highly reflective coatings that reduce solar heat gain through reflection and
absorption. Though very effective at reducing heat gain, visible light transmittance is
generally low and U-Values are not as energy efficient as low-E coatings.
Transmittance Percent
Percentage of incident ultraviolet energy that is directly transmitted through the glass.
Long-termexposure to UV light may result in fabric and pigment fading, plastic
deterioration and changes to the appearance of many types of wood.
UV
Ultraviolet radiant energy from the sun having a wavelength range of 300 to 380 nm with
airmass of 1.5.
U-Value (U-Factor)
A measure of the heat gain or loss through glass due to the difference between indoor &
outdoor air temperatures. It is also referred to as the overall coefficient of heat transfer. A
lower U-Value indicates better insulating properties. The units are Btu/(hr)(ft2)(°F).
Relative Heat Gain (RHG)
The total heat gain through glass for a specific set of conditions. This value considers
indoor/outdoor air temperature differences and the effect of solar radiation.
R-Value
A measure of the resistance of the glazing to heat flow. It is determined by dividing the U-
Value into 1. A higher R-Value indicates better insulating properties of the glazing. R-Value
is not typically used as a measurement for glazing products and is referenced here to
help understand U-Value.
Shading Coefficient (SC)
An alternative measure of the heats gain through glass from solar radiation. Specifically,
the shading coefficient is the ratio between the solar heat gain for a particular type of
glass and that of double strength clear glass. A lower shading coefficient indicates lower
solar heat gain.
Solar Energy
Radiant energy from the sun having a wavelength range of 300 to 4000 nm, which
includes UV (300 to 380 nm), visible light (380 to780 nm) and near infrared energy (780 to
4000 nm).
% Reflectance Out - percentage of incident solar energy directly reflected from the glass
back outdoors.
% Absorptance - percentage of incident solar energy absorbed into the glass.
% Transmittance - percentage of incident solar energy directly transmitted through the
glass.
The sum of percent reflectance out + absorptance out + transmittance = 100%. An
additional consideration is emission, or emissivity. This refers to the reradiation of
absorbed energy that can be emitted toward both the exterior and interior of the building.
Emissivity is controlled through the use of low-emissivity, or low-E coatings.
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SEZAL GLASS LTD.
Tel: +91-22-2863 3383 / 84 / 85 / 86 | Fax:
Email: [email protected] | www.sezalglass.com
201/ 202, Abilasha, 2nd Floor, S.V. Road, Kandivali (W), Mumbai - 400 067, INDIA.
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