Double-Glaze the heat, rain & noise

India is a vast country and different regions have varied and extreme climatic and weather conditions. The temperatures range from – 0 °C to 48 °C if not higher. The summer months are best described as hot, hotter and hottest. And when the monsoons sweep across the country, it pours. As for coastal areas, there are seasonal cyclones and heavy rain with high wind conditions, and the air is humid and ladened with extremely corrosive saline particles.

Life in these conditions is tough. As not everyone is lucky or can afford to live in air-conditioned comfort. If the home is large, the cooling costs alone will create a huge gap which is difficult to bridge. Electricity bills skyrocket.

But there is one permanent solution. The one step you can take to keep the heat out, reduce urban noise and put the rain at bay, is by installing double glazed uPVC windows and doors in your home.

A one-time investment that will pay for itself, faster than you think.

What is double glazing?

The term ‘double glazing’ refers to windows and doors that are fitted with a sealed unit. The technical name for this sealed unit is hermetically sealed insulation glass unit (IGU for short).

A double glazed window is made up of two panes of glass, separated by a gap (usually around 14 mm) filled with a vacuum or argon gas. There are also primary and secondary rubber seals, designed to stop heat and moisture from entering the home better than any other window or door system can.

The air space or gas between panes of glass is a poor conductor of heat and sound, preventing both from entering the home or building. Even though the process of heat transfer cannot be stopped entirely, it can help reduce heat gain into the given space immensely and save you a significant amount of money over the years.

Reducing the stress of urban noise

A double glazed uPVC window is an effective way to keeping not just the heat but also reducing outside noise from entering your home. The vacuum in between the panes absorb sound, and the extra pane works as an effective buffer against noise.

The two rubber seals are almost completely air and water tight and the two panes of glass together are also naturally a lot stronger, adding an extra layer of security to your home.

Due to the size of the gap between the panes being so small, there is total absence of circulation, which is the main reason for double glazing being much more efficient as opposed to single or secondary glazing.

A home or a building which has double glazed uPVC windows can lead to a reduction of cooling costs by up to 30%!

Advantage of thicker glass panes

The thickness of double glazing depends on the size of the windows. In general, the thicker the glass, the better the efficiency. All double glazed windows come fitted with low-emissivity (Low-E) glass. This has a very thin coating of metal oxide on one of the internal panes. While this is invisible to the eye, it lets in only light and keeps the heat out.

The double layer technology also minimizes condensation by balancing the outside and inside temperatures — the vacuum between the panes, ensure hot air doesn’t meet the cold air inside of the glass surface and condense the moisture on the panes. Eliminating dampness and build up of moss around the window frame and on the walls.

If you prefer to have extra security built into the uPVC windows, consider toughened glass. As the name suggests, the glass is extra tough and in the event of breakage, shatters into small, blunt cubes instead of sharp pointed shards, increasing safety.

Choose the right option: Double Glazed Windows in India

Double glazing is not just suitable for windows only, but this technology can be used for large and small doors; to enclose your balconies; and verandas. Or any other type of construction using glass panels.

uPVC is an ideal material for the frames as it is durable, affordable and provides a high level of insulation. It’s also very easy to maintain, won’t rot, rust or degrade in adverse weather conditions. uPVC is eco-friendly, long-lasting and can be totally recycled and reused again and again.

Sum of the parts is greater than the whole:

Double glazed window is made up of the uPVC frame and the hardware, in addition to the sealed glass unit. Each of these components have a critical role to play in delivering exceptional double glazing performance.


uPVC double glazed window lasts for many years. This resilient material is not prone to rusting or corrosion. It does not warp, bend, or rot. It also has the inherent strength that makes it very difficult to damage.

Energy efficient:

uPVC window frames are built with multi-chambers within the profile. These chambers serve to trap air and prevent it from circulating. A similar concept is at work when the vacuum between two panes of glass gives your home better insulation that leads to lower power consumption.

Bespoke styling:

The biggest advantage of uPVC double glazed window is you can choose and select the size, configuration, colour and the style you want.

Double glazing original hardware:

These are accessories like door handles, spy holes, locks and door chains. They also include fittings like hinges, operational hardware, and security fittings. All of these contribute not just to the appearance of the door or window, but also the kind of performance the unit delivers.

Needless to say, the quality of the hinges and operational hardware affects how long your window units last. What’s more, it also affects how smoothly the unit operates over its lifetime.


uPVC double glazed window units are fitted with high security, multi-point locking systems to ensure enhanced security.

Low maintenance:

uPVC window profiles are renowned for being extremely easy to care for. The material is so durable, it does not peel or scratch easily. The colours are long-lasting. All you need to do to maintain it is wipe it occasionally to clean the dirt and debris. Your double glazed window units will look as good as new.

100% recyclable:

There is no better ‘green’ option for your double glazed window than uPVC as this material is lead-free. Also, the uPVC double glazed window is completely recyclable. It can be recycled and reused, without impacting the environment.

The 21st century lifestyle:

More open spaces, better ventilation and more natural lighting are the trends for homes and building design and will be so for a very long time to come. Larger double glazed uPVC window and door units which prevent heat gain and improve energy efficiency are also becoming more popular nowadays. In fact, these critical factors are worth considering seriously.

So be proactive and think of your home or building as a long-term investment. Aparna Venster Double glazed windows uPVC window and door solutions help enhance the comfort levels of residents, increase energy efficiencies and raise the aesthetic appeal of your home or building like nothing else can. And most important, lower your carbon foot print.

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