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The Insulation Benefits Melbourne Homeowners Experience
Melbourne homeowners who upgrade their existing timber windows to double glazed windows experience a range of benefits and improvements to their homes.
double glazing significantly reduces heat loss through glass in winter, while the Low-E coating in our LightBridge/Optitherm units reflects radiant solar heat before it enters the room in summer. The result is a more comfortable home year-round.
double glazing improves the sound insulation of your windows, reducing the transfer of external noise from traffic, trams, and urban activity. For homes in particularly noisy locations, our LightBridge Next/Optitherm Hush units deliver a Weighted Sound Reduction Index of Rw38, the highest acoustic insulation available in a standard double glazed unit.
single-glazed windows transport cold into the room, creating uncomfortable cold spots near windows. Double glazing keeps the inner pane at room temperature, making every room in the home more comfortable.
improved window insulation can reduce heating and cooling energy usage by up to 60%, with many Melbourne clients noticing the difference on their first energy bill after installation.
by keeping the inner pane warm, double glazing eliminates the cold surface that condensation forms on, protecting your original timber frames from moisture damage, mould, and long-term deterioration.
double glazing reduces temperature fluctuation throughout the day, meaning your home stays comfortable with less constant adjustment of heating and cooling, particularly during Melbourne's unpredictable seasons.
Why Windows Are Your Home's Insulation Weak Point
When considering options to improve home insulation many Melbourne homeowners may look to ceiling insulation, wall batts, and draught sealing. But even the best-performing wall insulation has an R-value of R2.5 or higher, while a standard single-glazed window has an effective R-value of approximately R0.18.
In practical terms, single-glazed windows perform at a fraction of the thermal resistance of every other element within your home and heat flows through them rapidly in both directions.
Retrofit double glazing directly addresses this gap. Our most popular unit, LightBridge/Optitherm, achieves a U-value of 1.4 and reduces heat loss by up to 75%.
For the ultimate in window insulation, our Vacuum Insulated Glass (VIG) units deliver a U-value of just 0.4, reducing heat loss by up to 93% in a unit just 8.3mm thick. No other window insulation solution comes close to this level of thermal performance.
The Most Effective Window Insulation Solution
When Melbourne homeowners research how to insulate their windows, they often consider alternatives such as thermal curtains, window film, or draught sealing. These options provide marginal improvement but do not address the fundamental problem of heat transferring through the glass itself.
Retrofit double glazing is the only window insulation solution that permanently resolves this, delivering full thermal, acoustic, and condensation benefits in a single installation that works within your existing frames and requires no ongoing maintenance.
Window Insulation for Heritage and Period Homes
Melbourne's Victorian terraces, Edwardian homes, Federation bungalows, and California bungalows are often the most challenging homes to insulate, with large single-glazed timber windows responsible for a significant percentage of total heat loss. Replacing these windows can be expensive, potentially restricted by heritage overlays and undesirable for homeowners who value the character and aesthetic of their original heritage timber frames.
RetroFit Double Glaze specialises in improving window insulation for heritage homes by upgrading the glass within the existing timber frames. We employ the solid bedding process to deliver full double glazing performance. For heritage windows where a slim profile is essential, our VIG units at 8.3mm thick provide exceptional insulation and can be seamlessly adapted to a variety of window dimensions, including custom windows.
Double Glaze for Better Home Insulation Performance
RetroFit Double Glaze has been helping Melbourne homeowners achieve quieter, more comfortable, more cost-efficient and healthier homes since 2011. Our double glazing installations are backed by a lifetime workmanship warranty and a 10-year IGU warranty.
Book a free, no-obligation measure and quote or try our double glazing cost calculator to find out how retrofit double glazing can transform the insulation performance of your Melbourne home.
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