Hush™

Hush™ is a Grade A laminated safety glass created by bonding two glass sheets with a specially engineered acoustic interlayer. Hush™ significantly reduces noise, offering superior sound insulation compared to standard glass.

Hush™ is a registered trademark of Oceania Glass.

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Exploring The Benefits

Noise Control

The 3-layered acoustic interlayer laminate is specially designed to dampen noise and limit vibrations.

Safety & Security

The Hush™ range has a laminated layer that contributes towards making the range a Grade A safety glass as standard.

UV Protection

The PVB interlayer used in Hush™ eliminates 99% of ultraviolet radiation.

Range of Tones

Colour options are available within the Hush™ range.

DGU Application

Our DGU range allows Hush™ to be used in a double-glazed unit. For optimal performance, FGS recommend pairing with LightTech LI Max.

Performance Data

  • Calculation method: LBNL WINDOW Calc Engine v2.4.0, Optics 6.0
  • Environmental Condition: NFRC 100-2000
  • Results are for center-of-glass; does not include effect of frames
  • Location of LowE coating is indicated with surface number
    • #1 indicates exterior surface, #4 indicates the interior surface in a typical double-glazed unit
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Tilt

Tilt-angle (°)

Angle of the glass relative to the horizon

  • Typical skylights with a slight pitch: 3-5°
  • Typical windows in vertical walls: 90°
Ug.w

Ug (W/m².K)

Heat-transfer coefficient (center-of-glass)

  • Heat transfer (W) per square meter (m²) of glass for each degree (C) of temperature difference
  • Lower implies better insulation

.w

NFRC 100-2010 Winter Condition

  • The standard environmental condition for Ug quoted in the Window industry
  • Useful as a reference for performance comparison between different glazing systems but can lead to inaccuracies if used to estimate energy consumption
  • Inside Condition:
    • Air and effective room temperature: 21 deg C
    • Room emissivity: 1
  • Outside Condition:
    • Air and effective sky temperature: -18 deg C
    • Effective sky emissivity: 1
    • Convection coefficient: 26 W/m².K
    • Wind speed: 5.5m/s windward
Ug.s

Ug (W/m².K)

Heat-transfer coefficient (center-of-glass)

  • Heat transfer (W) per square meter (m²) of glass for each degree (C) of temperature difference
  • Lower implies better insulation

.s

NFRC 100-2010 Summer Condition

  • The condition used to calculate SHGC
  • Ug.s better represents performance in warm environmental conditions
  • Inside Condition:
    • Air and effective room temperature: 24 deg C
    • Room emissivity: 1
  • Outside Condition:
    • Air and effective sky temperature: 32 deg C
    • Effective sky emissivity: 1
    • Convection coefficient: 15 W/m².K
    • Wind speed: 2.75m/s windward
    • Direct solar radiation: 783W/m²
SHGC

SHGC (Range: 0 – 1)

Solar heat gain coefficient

  • Proportion of solar heat radiation transmitted
  • Generally lower SHGC is desirable for north and west facing windows for reducing air-conditioning cost in summer
  • However, higher SHGC for north and west facing windows would help reduce heating cost in winter
VLT

VLT (Range: 0 – 1)

Visible light transmittance

  • Proportion of visible light (380 - 720nm) transmitted
  • Generally higher VLT is more desirable
VLRf

VLRf (Range: 0 – 1)

Front Visible light reflectance

  • Proportion of visible light reflected on the external side of the IGU
VLRb

VLRb (Range: 0 – 1)

Back Visible light reflectance

  • Proportion of visible light reflected on the room side of the IGU
Tdw

Tdw-ISO (Range: 0 – 1)

Damage weighted transmittance

  • Proportion of colour fading radiation transmitted
  • Lower Tdw-ISO means lower risk of colour fading
  • Accounts for the colour fading potential of both UV and visible spectrum
Tuv

Tuv (Range: 0 – 1)

UV transmittance

  • Proportion of UV radiation (280 - 380nm) transmitted (Range: 0 – 1)
  • Not recommended as a metric for assessing colour fading potential
  • Visible spectrum could account for as much as 40% of the fading from solar radiation
Sel.

Selectivity (VLT/SHGC)

Ratio of visible light transmittance over solar heat gain coefficient

  • Useful for comparing spectral selectiveness of the low-E coating
  • Higher selectivity means less visible light is sacrificed to lower solar heat gain

Example:

  • Sel. in the 0.5 - 0.8 range results from the use of Grey glass; less visible light is transmitted vs infrared radiation
  • Sel. in the 1.9 - 2.2 range results from the use of LightTech LI Max; less infrared radiation is transmitted vs visible light
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Nom.

Nominal thicknesses (mm)

List of nominal thicknesses of the IGU components separated by the '+' symbol

Example:

17.52:

  • 17.52mm single-pane laminated glass

6+12+6:

  • DGU made up of:
    • 6mm glass
    • 12mm spacer
    • 6mm glass
Total.

Total thickness (mm)

Total thickness of the glazing system; sum of component thicknesses

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Applications

Discover Applications

Internal

  • Doors
  • Shop Front
  • Partitions

External

    • Doors
    • Windows
    • Shop Front

*Application information attained from Oceania Glass

Specifications

How to Specify

Available colours and thicknesses:

  • Clear 6.5 & 10.5mm
  • Neutral 6.5 & 10.5mm
  • Grey 6.88 & 10.88mm
  • Translucent 6.88mm
ComfortHush™ Acoustic Data
Single Glazing
Thickness (mm) Rw
6.5 36
6.88 36
10.5 38
10.88 38
12.5 40
Insulated Glass Unit
Make up Rw
4/12/6.5 37
6/12/6.5 39
6/16/6.5 41
8/12/6.5 42
8/12/8.5 43
10/12/8.5 44
10/12/12.5 46

Select from: Laminated.

*If unsure, select in compliance with AS1288–2021 or manufacturers recommendation.*

The glass shall comply with the following performance criteria:

  • U value
  • Solar Heat Gain Coefficient (SHGC)
  • Visible Light Transmission %
  • Glass Only Values
  • Total window

Toned Glass

Toned glass absorbs a proportion of solar radiation and may require a thermal assessment depending on application.

All glass is to be selected and installed in accordance but not exclusively with the following Australian and/or New Zealand Standards

  • AS 1288 Glass in Buildings Selection and Installation
  • AS 1170 Minimum Wind Loads on Structures
  • AS/NZ 2208 Safety Glazing Materials in Buildings
  • AS/NZ 4666 Insulating Glass Units
  • AS/NZ 4667 Quality Requirements for cut-to-size and Processed Glass

*Specification information attained from Oceania Glass

Considerations

Things to Consider

Acoustic Control
To avoid noise leaks, you need to ensure that ComfortHush™ is installed in a frame that’s well-sealed and professionally fitted. If the frame isn’t sealed properly then ComfortHush™ can’t work to its full potential.

Glazing
ComfortHush when single glazed, must be glazed with the exposed coating to the inside of the building (surface #4).

Glass
Under certain light conditions, a haze effect can be seen in the glass.

Glass Processing
Exposed edges should be protected from moisture ingress.

Large Projects
Oceania Glass recommends that for large glazing facades (particularly curtain wall) the customer should highlight this in writing to enable consideration of colour management of supplied product.