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Double Glazed Windows Wollongong

Double glazed windows are great for temperature and noise control and only cost around 10%- 20% more than commercial grade aluminium windows. With these features combined double glazed windows are a fantastic option for any home or business.

Due to superior insulation properties, great range of styles, colours and competitive prices, Prestige Plus double glazed windows are extremely popular. Also we are so sure of our windows that all Prestige Plus double glazed windows come with a 10 year warranty. Prestige Plus frames are also treated with a unique anti-UV formula ensuring durability and ability to withstand harsh Australian conditions.

You’ll also notice that using our double glazed windows the use of external air-conditioning is dramatically reduced. Result in lower energy bills therefore saving you money in the long run. Contact us today so you can find out how we can help, provide the best solution and save you money.

What are Double Glazed Windows

Double Glazed Windows are insulated glass units (IGU) combining multiple glass panes into a single window system. Most IGUs are double glazed (two panes of glass) with three panes (triple glazing) or more becoming more common due to higher energy costs and noise reduction. The panes of glass in IGUs are separated by a spacer and a still layer of air or gas. The glass is then fitted into window frames, which is made wider to accommodate the two panes.

Benefits of Double Glazed Windows

Double glazed windows are ideal for energy efficiency and noise reduction. The sealed air gap between the two glass panes acts as an added layer of insulation hence reducing heat escaping in winter keeping your home at a comfortable temperature. Double glazing has the reverse effect in summer, preventing unwanted heat coming into the home. As a result, your reliance on air conditioning lessens therefore reducing your energy costs.

Double glazed windows also reduce condensation which contributes to creating unhealthy mould making your home a healthier and happier place.

Sealed double glazing is effective at reducing medium to high frequency noises such as human voices. A difference in glass thickness between the inner and outer panes will improve sound reduction even further.

Double glazed windows have better security compared to standard single pane windows. Two sheets of glass are harder to break than one and for even greater security you can also specify toughened or laminated glass.

What to look for in Double Glazed Windows

Amount of space between panes

Typical space between panes ranges from 6mm to 20mm. A minimum space of 12mm is recommended for optimum thermal performance. For good acoustic control and to reduce low frequency noise such as traffic and aircraft, the optimum air gap recommended is 150mm or over. Note that such large gaps allow convection to occur between the panes and reduce insulating performance.

What’s in between

Because the space between the panes in double glazed windows is completely sealed, it acts as an insulator, limiting cold air coming into your home. Thermal and acoustic performance are also increased when gas fills this space. The most popular gas used is argon which has low conductivity properties improving insulation. Double glazed window units include a spacer which is a metal or polymer strip separating two panes of glass. Typically, spacers contain a desiccant (drying agent) to remove moisture trapped in the air space.

Common problems

Windows need to be considered as a whole unit. Framing material chosen to complement your glass may enhance its performance or possibly reduce its energy efficient properties. Standard aluminium window frames readily conduct heat and cold and if not thermally enhanced may eliminate any double glazing benefit.

Cavity seal and type of spacer used are also important factors to consider. Double glazed units not sealed properly or spacers not containing adequate desiccant can reduce performance and condensation will appear on cold surfaces.

Advantages of Double Glazed Windows

  • Minimises heat loss in winter
  • Minimises heat gain in summer
  • Improves acoustic performance

Disadvantages of Double Glazed Windows

  • Higher cost than single glazing

Double Glazed Windows Wollongong Conclusion

In conclusion, when choosing double glazed windows it is important you talk to your friendly Prestige Plus expert and not just any installer. By contacting Prestige Plus you can relax and feel assured the job will be done correctly.


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