Double Glazing for Residential Windows

The Solution for Comfortable Living

Many residential windows are single glazed windows that provide minimal noise and thermal insulation. Converting your existing window into double glazing can improve the quality and comfort of your home; introduce sustainable living by reducing energy use and energy bills.

Magnetite offers a range of retrofit double glazing solutions to soundproof and insulates your home against heat and cold. Our retrofit double glazing systems have been independently tested and proven to reduce noise by up to 70% and improve thermal performance by up to 70% for residential windows. Our integrated approach includes assessing the existing windows and doors, designing the best retrofit double glazing solution, and delivering the result through a customised installation.

With over 25 years of experience, Magnetite offers residential double glazing service to homes throughout Australia and NZ. We operate through a network of licensed and qualified fabricators, estimators, and installers. Magnetite’s fabricators are located in Adelaide, Canberra, Melbourne, Perth and Sydney and we service Wollongong, Newcastle, Orange and Tasmania through a network of authorised dealers.

Why homeowners choose Magnetite

Acoustic & thermal insulation

Our secondary glazing solution is tailored to suit your needs, providing optimal soundproofing and all year round thermal comfort. Our systems have been independently tested and proven to reduce noise by up to 70% and improve thermal performance by up to 70% for residential windows.

Minimal impact to exterior of the homes

Whether it is a heritage homes or strata and apartments, Magnetite offers perfect acoustic and thermal insulation without any changes to the appearance of your home.

Increase property value

Double glazing your existing residential windows will increases your property value by improving the comfort of the home and lowering the running costs.

Sustainable Living

Double glazing your existing windows help to maintain the indoor temperature without having to crank up your air con or heater. The lower energy use means reduction of greenhouse gas emissions. Our secondary glazing solution also minimises the impact on the environment by using existing materials instead of replacement windows that create waste.

Custom installation

Magnetite’s double-glazing solution is designed to fit many types of residential windows, doors and skylights including sash windows, timber widows, sliding windows, casement windows and multi-panel windows.

Submit your enquiry and we will get back to you within 1 business day.

What Our Customers Say

“Great product! Excellent for sound reduction and temperature control and far less expensive than standard double glazing”

Penelope, Northcote VIC

“It is true that we are delighted with our magnetite installation. The noise factor has been significantly reduced. The installation was pain free.”

Irene & Allan Kensington NSW

“The quoting and installation service was very professional. The finished installation looks excellent and is exactly as quoted. Thank you.”

Russell, Redfern NSW

“I just wanted you to know what a happy experience dealing with Magnetite has been. Very efficient and an excellent result.”

Alan, Sydney NSW

“We are very happy with Magnetite which you installed in our bedroom in February. The young men were very professional and they did a very neat job.”

Anne, Greenwich NSW

PRODUCTS

PROJECTS

GALLERY

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.

Double Glazing for Residential Windows

The Solution for Comfortable Living

Why homeowners choose Magnetite

Acoustic & thermal insulation

Minimal impact to exterior of the homes

Increase property value

Sustainable Living

Custom installation

Submit your enquiry and we will get back to you within 1 business day.

What Our Customers Say

PRODUCTS

PROJECTS

GALLERY

The Window Energy Rating Scheme (WERS) Thermal Performance

Aluminium Frame Windows

Timber Frame Windows

Magnetite vs Traditional Double Glazing – What the experts says