Blog

Apr 6, 2022

Escaping the Excessive Noise of Melbourne’s Busy City

Just like many of us, Melbournians want to come home and enjoy peace and quiet within the comfort of their own homes after a long day at work. As the ...

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Mar 17, 2022

Is Soundproofing Your Windows Worth It?

Is noise keeping you awake at night? Perhaps it is preventing you from enjoying your favourite TV show? This noise issue has become a far more common problem face by ...

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Feb 21, 2022

How to Work Comfortably from Home with Magnetite Windows

Mixed-use precincts are on the rise in the city of Canberra – with many residents living in close proximity to commercial and business premises. Couple that with changes in work ...

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Magnetite soundproofing and insulating windows

Dec 22, 2021

5 Ways Soundproofing Can Add Value to Your Perth Property

Unwanted noise does more than affect our concentration and ability to work from home, it can also affect our sleep and mood. For a fast-growing population city like Perth, noise ...

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Dec 12, 2021

Season's Greetings from all of us at Magnetite

With the holiday season approaching, we would like to thank all your continued support throughout the year. Please note that our head office will be closed from Thursday, 23 December ...

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Nov 29, 2021

How to Maintain the Lockdown Quietness with Magnetite Window in Melbourne

As the city of Melbourne emerges out of lockdown, noise in the inner suburbs has been increasing dramatically with traffic resuming back to normal. Over the past 18 months, Melburnians ...

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Nov 26, 2021

Magnetite congratulates Paralympic gold medalist Katie Kelly on her retirement

Sydney, November 2021: Magnetite would like to congratulate Paralympic gold medalist, Katie Kelly on her stellar seven years’ career, following her retirement announcement. Katie competed at two Paralympic Games and ...

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Reducing Noise on Your Property in Perth

Nov 9, 2021

How to Minimise Noise on Your Perth Property

If you’ve lived in Perth, it’s you may have experienced a night of disturbed sleep due to the booming of music, sirens or revving engines. As Western Australia has phased ...

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Nov 8, 2021

The 4 Key Ways Sydney Residents Can Reduce Noise in Their Home

Some of the exciting things that attract people to live in Sydney is the city’s iconic beauty, the hustle and bustle of everyday life and its vibrant lifestyle. While this ...

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Sep 21, 2021

Why Soundproofing Your Windows Is Needed For Adelaide Living

You might think that as one of Australia’s ‘quieter’ cities it would mean that noise pollution isn’t a concern in Adelaide. However, a closer inspection reveals that excess noise is ...

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Aug 18, 2021

Magnetite’s Ultimate Guide to Double-Glazed Windows

When it comes to keeping your home thermally comfortable while staying inside, windows play an important role. No matter what time of the year it is, it’s important to make ...

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Jul 28, 2021

Ways to Manage the Cold Housing Phenomenon in Melbourne

While Australia’s known as the sunburnt country, it’s the bitter chill of winter that is the biggest threat to Australian families and their homes. The cold kills more people in ...

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Glazing Type	Cooling Stars	Heating Stars	Cool%	Heat%	Uw	SHGC
Single glazed 3mm clear glass*					7.4	0.77
Single glazed 3mm clear glass & 4.5mm Magnetite			35%	59%	2.9	0.67

Glazing Type

Cooling Stars

Heating Stars

Cool%

Heat%

SHGC

Single glazed 3mm clear glass*

7.4

0.77

Single glazed 3mm clear glass &
4.5mm Magnetite

35%

59%

2.9

0.67

Glazing Type	Cool%	Heat%	Uw	SHGC
Single glazed 3mm clear glass*	20%	28%	5.5	0.69
Single glazed 3mm clear glass & 4.5mm Magnetite	37%	61%	2.6	0.66
Single glazed 3mm clear glass with Solartite** and 4.5mm Magnetite	76%	45%	1.8	0.20

Glazing Type

Cooling Stars

Heating Stars

Cool%

Heat%

SHGC

Single glazed 3mm clear glass*

20%

28%

5.5

0.69

Single glazed 3mm clear glass &
4.5mm Magnetite

37%

61%

2.6

0.66

Single glazed 3mm clear glass with
Solartite** and 4.5mm Magnetite

76%

45%

1.8

0.20

Glazing Type	Cooling Stars	Heating Stars	Cool%	Heat%	Uw	SHGC	AI
Double Glazed 3mm clear glass/12mm air gap/3mm clear glass IGU (Insulated Glass Unit)*			40%	55%	3.0	0.61	5.0
Single glazed 3mm clear glass & 4.5mm Magnetite			37%	61%	2.6	0.66	0.5

Glazing Type

Cooling Stars

Heating Stars

Cool%

Heat%

SHGC

Double Glazed 3mm clear glass/12mm air
gap/3mm clear glass IGU (Insulated Glass Unit)*

40%

55%

3.0

0.61

5.0

Single glazed 3mm clear glass &
4.5mm Magnetite

37%

61%

2.6

0.66

0.5

Glazing Type	Cooling Stars	Heating Stars	Cool%	Heat%	Uw	SHGC	AI
Double Glazed 5mm Supertoned glass/6mm air gap/5mm clear glass IGU (Insulated Glass Unit)*			54%	425%	3.30	0.461	5.0
Single glazed 3mm glass Solartite** and 4.5mm Magnetite			73%	38%	2.4	0.19	0.5

Glazing Type

Cooling Stars

Heating Stars

Cool%

Heat%

SHGC

Double Glazed 5mm Supertoned glass/6mm
air gap/5mm clear glass IGU (Insulated Glass Unit)*

54%

425%

3.30

0.461

5.0

Single glazed 3mm glass Solartite**
and 4.5mm Magnetite

73%

38%

2.4

0.19

0.5

Noise Reduction Technical Data and Results

Proven Results

Noise pollution is one the biggest problems faced in the cities today, particularly in a high-density living. Unwanted noise can be responsible for sleep loss and lack of concentration. This can lead to a deterioration of health through increased stress levels, headaches, high blood pressure and loss of hearing.

Noise penetrates windows through leaky seals or vibrations through the window structure. To reduce noise, a window should minimise air infiltration, hold enough weight to limit vibration and allow a large air cavity. This cavity, or air gap, is the key to secondary glazing.

Expert Advice:

CSIRO Research by John Davy shown an air cavity can effectively enhance sound insulation performance. The larger the air cavity the more noise the window system can reduce. Results show a wide air gap of 100-125mm will improve sound insulation by an average of 7dB(A) more than windows with a narrow gap of 8-13mm.

Window or Glass Door Type	Total Glass Thickness (mm)	Air Cavity Thickness (mm)	Sound Insulation (dB)
Single Glaze 3mm	3	0	23
Single Glaze 6mm	6	0	27
Double Glaze Narrow Gap	9-12	8-13	31
Double Glaze Wide Gap	9-12	100-125	38

Window or Glass Door Type

Total Glass Thickness (mm)

Air Cavity Thickness (mm)

Sound Insulation (dB)

Single Glaze 3mm

Single Glaze 6mm

Double Glaze Narrow Gap

9-12

8-13

Double Glaze Wide Gap

9-12

100-125

The human ear is less sensitive to low frequency sound. According to a study released by the CSIRO, the human ear needs a change of 3dB to detect a difference in noise levels and the human ear perceives a change of 10dB as a doubling or halving of the noise level.

If you double the thickness of glass in a window the noise level will decrease by 3dB the least amount possible to make a difference. If the glass is laminated there is no perceived difference in noise reduction.

National Acoustic Laboratory Testing:

Working with the principles of noise transfer, Magnetite® and Soundtite are designed for high performance, which is achieved by combining air tight seals with the ability to maximize an air cavity and the flexibility to vary glazing thickness to suit. Magnetite® is excellent at reducing general noise such as busy roads, commuter trains and noisy neighbours. Whereas, Soundtite works well to combat low frequencies noise such as garbage truck, freight trains or airplane during take-off and landing.

Test Code	Material Tested	Rw*	Improvement
ATF 707 (test window)	Aluminium sliding window, 3mm float glass with mohair seals	23	N/A
ATF 709	Test window, 100mm air gap and Magnetite System (4.5mm acrylic panel)	35	52%
ATF 1507	Test window, 100mm air gap and Magnetite System (10.0mm acrylic panel)	39	70%
ATF 817	Test window, 100mm air gap and Soundtite (6.38mm laminated glass)	41	78%

Test Code

Material Tested

Rw*

Improvement

ATF 707 (test window)

Aluminium sliding window, 3mm float glass with mohair seals

N/A

ATF 709

Test window, 100mm air gap and Magnetite System (4.5mm acrylic panel)

52%

ATF 1507

Test window, 100mm air gap and Magnetite System (10.0mm acrylic panel)

70%

ATF 817

Test window, 100mm air gap and Soundtite (6.38mm laminated glass)

78%

*The Weighted Sound Reduction Index (Rw) is a measure for sound insulation performance of a single building element such as windows. The higher the Rw rating, the better the sound insulation.

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