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Category: Blog - page 11

Are You Ready for More Rail Lines?

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More Rail Lines

According to a Seven news report, residents along the rail line in Northern Sydney suburbs are in danger. A high pitch screech from passing freight trains in Beecroft was recorded at 102 decibels, almost as loud as lightening (110 db) and not far short of a rock concert (120db) (7News). Being frequently exposed to this excessive noise can impact residents’ quality of life, through high blood pressure and sleep disturbance. Long term deafness is also a concern.
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Windows for Better Home and Living

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Windows for Better Home and Living

Windows create harmony between inside and outside spaces; from the beauty they add to a building facade, the natural light they bring in, to the view they reveal. They are also the weakest part of a building envelope which can account for up to 49% of heat loss and 87% of heat gain. Inefficient glazing can cause discomfort & higher power usage.
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Is Your Workload Making You Sick, or Is It Your Workplace?

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Excessive workloads have long caused tension in the workplace. Ironically, modern office designs often compound this tension. One reason is the prevalence of open plan layouts. They increase ambient noise, a major distraction and frustration for staff, which can also affect their health, leading to sickness and lower productivity.
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Movember: Great Moustache for a Great Cause

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Great Moustache for a Great Cause

The 30 days of enduring the ridiculous facial hair in the office is now over. The Magnetite Mo Bros are now clean-shaven and proud to share about their participation on Movember.
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Building Retrofits – The New Energy Saving Trend

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Building Retrofits

Did you know buildings currently contribute approximately 40% of the world’s energy consumption?

Most buildings standing today will still be in use for decades. Planning a green future for new construction has become an expectation for architects and builders. Now, the challenge is to modify existing buildings to be more energy efficient ” remember that existing buildings, or the “built environment” is massive compared to new construction. Bringing the built environment into a green future while managing costs will be the biggest hurdle. There is no more cost-effective solution to this than “green retrofitting” older buildings.
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Comfortable Living Should Not Cost The Earth!

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Comfortable Living

Have you considered the impact our comfortable lives have on the planet, our Home? How much are we costing the Earth?

To get an idea, in just one year, each Australian, on average, releases enough greenhouse gas into the atmosphere to fill more than 700 balloons! To help maintain our collective home – Earth – The Australian Solar Energy Society has created Sustainable House Day. The initiative is to help Australians live sustainably in a modern world.
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Turn Down the Volume for A Healthier Life

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Turn Down the Volume for A Healthier Life

Stress and Headaches due to work and long travel time are common problems for most commuters. Not surprisingly, the bad news doesn’t stop there. Research done by a scientist in New York City indicates that being exposed to noise can activate our natural stress hormones which affects our happiness and health.
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Melbourne’s Citiclub Building is Going Green with Magnetite Retrofit Double Glazing

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Melbourne Citiclub Building

Magnetite’s Melbourne franchise recently completed an installation at the iconic Citiclub building, the former headquarters of the RACV Club in Melbourne CBD. The installation was partly funded through a new scheme set up for commercial buildings called the Australian environmental upgrade fund. Double glazing was chosen to help improve the insulation of the building’s facade. Magnetite’s retrofit double glazing was applied to the hotel section of the building.
Read more about: Melbourne’s Citiclub Building is Going Green with Magnetite Retrofit Double Glazing

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Selling Houses Australia – Series 5 – Railway Cottage

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Selling Houses Australia

In November we helped Shaynna and the crew from Selling Houses Australia reduce the noise in this heritage cottage on the outskirts of Sydney. Last week the show went to air and the results exceeded all of our expectations.
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Is it easy to turn my house into a green home?

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As a homeowner and consumer, you make many decisions when it comes to purchasing products for your home. If you’ve already explored buying green products from the grocery store, perhaps now you can consider turning your house into a green home.
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  1. Conduction
    Heat moving through an object (i.e. heat will travel through an aluminium, or steel frame more easily than through a timber or PVC frame).
  2. Radiant heat
    Heat from the direct sun. It can pass through space until reflected or absorbed.
  3. Convection
    Heat flow resulting from air movement e.g. either 'natural' convection - warm air rises, or 'forced' convection - a breeze by a window, both can result in a draught by a window.
  4. Infiltration
    Air leaks around the frame, around the window sash and through the gaps in the movable window parts.

When evaluating your options to improve the thermal performance of your windows, the following double glazing key performance criteria should be considered:

  • U-Value (Uw) represents heat transfer through a window, irrespective of direct sunlight. The lower a window’s U-Value, the better the insulation performance.
  • Solar Heat Gain Coefficient (SHGC) measures the solar energy that passes through glazing. The lower the SHGC, the less solar heat is transmitted through a window.
  • Air Infiltration or leakage measures the rate at which air passes through gaps in window joins and seals. The lower the air infiltration, the better a window’s energy performance.

The Window Energy Rating Scheme (WERS) Thermal Performance

Aluminium Frame Windows

Glazing Type Cooling Stars Heating Stars Cool% Heat% Uw SHGC
Single glazed 3mm clear glass* half blue star red starhalf red star 7.4 0.77
Single glazed 3mm clear glass &
4.5mm Magnetite		 blue starblue starhalf blue star red starred starred starred starred starhalf red star 35% 59% 2.9 0.67

Timber Frame Windows

Glazing Type Cooling Stars Heating Stars Cool% Heat% Uw SHGC
Single glazed 3mm clear glass* blue starhalf blue star red starred starred starhalf red star 20% 28% 5.5 0.69
Single glazed 3mm clear glass &
4.5mm Magnetite		 blue starblue starhalf blue star red starred starred starred starred starred star 37% 61% 2.6 0.66
Single glazed 3mm clear glass with
Solartite** and 4.5mm Magnetite		 blue starblue starblue starblue starblue starblue starhalf blue star red starred starred starred starhalf red star 76% 45% 1.8 0.20

 

*WERS standard typical industry window
**Solartite is a range of high performance window film. The window tested above has Solartite’s low-e film.

Magnetite vs Traditional Double Glazing – What the experts says

Winter - the ideal situation is to let in as much of the sun's heat and then trap it inside to maintain a comfortable environment in your home or office. This will also significantly reduce heating costs and saves you money. The ideal window for winter will have a high SHGC to let the sun's heat in and a low U-Value to prevent the heat from escaping. Clear windows without shading films are better suited for winter climates.

Compared with traditional double-glazing, Magnetite’s double-glazing solution can provide better results during winter or for cold climate areas such as Canberra, the Adelaide Hills and Blue Mountains.

Magnetite's clear acrylic window panels allow the direct heat from the sun's rays to enter the building and once inside, Magnetite's superior magnetic seals retain the heat, giving Magnetite an advantage over conventional operating windows.

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)*		 blue starblue starhalf blue star red starred starred starred starred starhalf red star 40% 55% 3.0 0.61 5.0
Single glazed 3mm clear glass &
4.5mm Magnetite		 blue starblue starhalf blue star red starred starred starred starred starred star 37% 61% 2.6 0.66 0.5

 

*WERS standard typical industry window

Summer - the ideal situation is to minimize the heat coming in from outside and prevent the cool air inside from escaping through the window. This will make your home more comfortable and reduce your air-conditioning costs. The ideal window for summer, or for a large west-facing window, will have a low SHGC to limit the heat from the sun's direct rays, as well as, a low U-Value to prevent the heat in the air outside from moving through the window and warming the cool conditioned air inside. It is better to have a shading film on the first (outer) glass pane to limit the heat that enters the double glazed unit.

The combination of Magnetite retrofit double glazing and Solartite outperforms the traditional insulated glass unit for hot climate. Magnetite fit over an existing window with reflective film will give better summer heat control than a double-glazed window with supertoned glass.

The Magnetite system stops the conduction and convection of heat better than glass windows giving superior results for summer conditions. Combined with a film or a shading device, Magnetite is the ideal solution for the hot Australian conditions.

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)*		 blue starblue starblue starhalf blue star red starred starred starred starhalf red star 54% 425% 3.30 0.461 5.0
Single glazed 3mm glass Solartite**
and 4.5mm Magnetite		 blue starblue starblue starblue starblue starhalf blue star red starred starred starred star 73% 38% 2.4 0.19 0.5

 

*WERS standard typical industry window
**Solartite is a range of high performance window film. The window tested above has Solartite’s low-e film.

Click here to view pdf version of Magnetite WERS test result.

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

 

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%

 

*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.