Blog

Nov 9, 2023

How To Create A Quieter Space In The Heart Of Melbourne

Melbourne is a bustling city known for its liveliness. However, amidst the hustle and bustle, there exists an invisible enemy: Noise. Hundreds of people suffer its consequences daily, silently battling the adverse ...

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Oct 17, 2023

Urban Buzz, Silent Bliss: Mastering Main Road Living with Soundproofing Solutions

Living in the heart of a bustling city has its undeniable charms - the convenience, the energy, and the endless opportunities. Yet, there's one aspect that can prove to be ...

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Aug 11, 2023

Windows that Pay for Themselves: The Economic Advantage of Double Glazing in Adelaide

With the rising cost of living, saving energy and money has become more important than ever for many homeowners. Many of them want to make their homes more efficient, and ...

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May 31, 2023

Surviving Melbourne's Cold Snap with Thermal Insulation and Retrofit Double Glazing

As winter arrives in Melbourne, residents brace themselves for the notorious cold snap that sweeps across the city. With temperatures dropping to freezing levels, it's necessary to find effective ways ...

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Apr 21, 2023

The Importance of Recycling Materials in Thermal Insulation and Soundproofing

Creating comfortable and energy-efficient living and working spaces requires both thermal insulation and soundproofing. However, using traditional insulation materials like fibreglass and rock wool can have a negative impact on ...

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Feb 17, 2023

Celebrating 25 years of Innovation: The Magnetite Story

This year marks a very special occasion for Magnetite, as we celebrate our 25th year of providing double-glazing solutions for existing windows and doors in Australian homes and buildings. It's ...

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Feb 2, 2023

How To Make Your Windows More Energy Efficient?

Windows are a major source of heat loss in homes and making them more energy efficient can help to save on energy bills while improving the comfort of your home. ...

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Dec 13, 2022

Double Glazing & Noise Reduction – Debunking the Myths

Whether you are at home or in the office, windows protect you from unwanted outdoor elements like noise or extreme temperature. That’s why it is important to choose the best ...

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energy efficient windows for thermal comfort

Dec 6, 2022

Is your home ready for the hot summer months?

If you read the news, you would have heard this summer is forecasted to be hotter than usual, and the heat will strike early for the northern part of the ...

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Dec 2, 2022

Meet Australia’s Most Trusted Secondary Glazing Company

Sydney, December 2022: Magnetite is proud to have won the 2023 ProductReview Award for the Window category. ProductReview is Australia’s most trusted online review site. This independent platform allows Australian consumers to rate, ...

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soundproofing windows noise reduction Window Insulation Magnetite Melbourne

Sep 13, 2022

The Many Ways of Soundproofing Your Melbourne Home

It’s no secret that the noise surrounding our homes can easily impact the comfort and relaxation that we experience. When on the hunt for a new home, it is common ...

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Jul 15, 2022

How to Reduce Cold and Draught From Entering Your Adelaide Home

Have you ever noticed the cold air blowing in through the gaps around your windows? Although checking your windows may not sound like an essential household chore, reducing the cold ...

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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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