| Choosing your glass carefully will add to the interior comfort of your home. Double glazing is our standard offering. |
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| Double glazing: |
A double glazed window consists of two panes of glass, bonded to a spacer and separated by a sealed air space. Because this space is fully sealed it acts as an insulator, keeping your home at a comfortable temperature in all weathers. |
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| With double glazed window you will get: |
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Warmer in winter |
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Cooler in summer |
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Conserves energy |
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Saves costly energy bills |
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Replaces thermal drapes |
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Reduces noise |
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Minimal maintenance |
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Improves security |
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Adds value to your property |
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Improves your lifestyle |
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| How double glazing works: |
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A single pane of glass provides very poor insulation because glass is a good conductor of heat. So much of the heat in your room literally goes out the window. Install double glazing and you have a layer of air trapped between two panes of glass. Because air is a poor conductor of heat, much less heat is lost through the window.
Your home's double glazing operates just like fibreglass batts and woollen clothing. It traps a layer of air between two panes. So in a home without double glazing, heat is going straight out the window. Heating (or cooling) bills are reduced in the double-glazed home.
If the inside of one sheet has Low E coating, even less heat is lost because the coating reflects heat back into the room. It dramatically reduces heat transfer, providing the ultimate in energy efficiency to repel heat in summer, retain it in winter.
The following chart shows the percentage improvement in thermal performance by using various types of double glazing. |
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THERMAL
TRANSMITTANCE |
U Value ASH RAE
Summer |
U Value ASH RAE
Winter |
% reduction in
heat lossWinter |
Single glass 4mm |
5.87 |
6.28 |
0 |
Double glazing 4/12/4* |
3.16 |
2.78 |
55 |
Double glazing 6/12/6 |
3.17 |
2.76 |
56 |
D/G Low E 4/12/4 |
2.11 |
1.91 |
69 |
D/G Low E 6/12/6 |
2.10 |
1.89 |
70 |
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| * 4mm float glass / 12mm air space / 4mm float glass |
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| Double glazing reduces condensation: |
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Condensation is messy... and ultimately it's expensive. Double glazing reduces that unwanted moisture. The reason is quite simple: the inner pane remains substantially warmer than a single pane of glass, so condensation is dramatically reduced. |
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| Double glazing beats the noise problem: |
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When noise is a nuisance, double glazing can help with a solution. A reduction of just 10 decibels will halve the loudness of the noise you hear. Different combinations of glass in your double glazing will provide the reduction you need. |
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| GLASS TYPE |
STL db |
STC class |
perceived sound reduction (%) |
Single glass 3mm |
24 |
26 |
0 |
Double glazing 4/12/4* |
27 |
30 |
20 |
Double glazing 6/12/6 |
26 |
31 |
25 |
Double glazing *6.38/12/4 |
34 |
39 |
57 |
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| * 4mm float glass / 12mm air space / 4mm float glass |
| * 6.38 = 6mm laminated glass |
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| Low-E glass: |
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Low-E is a clear, low-emissivity coating applied to one side of the glass. This microscopically thin coating filters the sun's energy in the summer and reduces heat loss in the winter.
You can get even greater thermal performance with the addition of argon gas to our standard, dual-pane insulating glass. |
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| Benefits of Low-E: |
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Low-E allows most natural light to enter freely but absorbs a significant portion of short-wave heat energy. |
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. In the summer, long-wave heat energy radiating from objects is reflected back outside, lowering cooling cost. |
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In winter, internal long wave heat energy is reflected back inside, lowering heating cost. |
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| Other glass options: |
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FrameCraft™ offers many combinations of window glass for everything from sun and noise protection to ensuring your privacy and safety. Shown here are some of our glass options.
Obscure: Obscure door and window glass protects your privacy but allows abundant light to enter the room. Choose from a variety of colors and texture patterns for a translucent to semi-opaque effect.
Laminated: Laminated glass is produced by bonding two or more layers of glass together by means of a special plasticised interlayer, polyvinyl butyral (PVB). Laminated glass provides significantly better sound control than monolithic glass, effectively blocking out unwanted noise. It also resists penetration and forced entry, screens out 99 percent of the sun's ultraviolet rays, and can be produced in any color. When laminated glass is broken, the glass particles tend to adhere to the interlayer, significantly reducing the risk of flying or falling glass.
Tinted: Tinted door and window glass provides additional shading from direct sunlight and warm conditions. Choose from a variety of tones from which to choose. Tones include Bronze, Solar Bronze, Solar Gray, Evergreen and Blue etc.
Tempered: Tempered glass is extremely strong and often used for its safety characteristics. Not only is it extra strong, but when it breaks, it breaks into little pebble-like pieces without sharp edges. Tempered glass is ideal for reducing the likelihood of injury in the event of breakage in applications like patio doors, side lights.
Argon-filled: You can get even greater thermal performance with the addition of argon gas to our standard, dual-pane insulating glass. |
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