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Windows, Doors & Conservatories

Low E Glass vs Normal Glass: Which Is Best?

low e glass vs normal glass

The best way to understand coatings is to understand the solar energy spectrum. The spectrum includes ultraviolet light, visible light, and infrared light. These are all different parts of the solar spectrum.

Understanding these differences and types of light will help you understand which type of glass would be best for your windows.

Ultraviolet light is the light that causes interior materials such as fabrics to fade. It has wavelengths of 310 to 380 nanometers when reporting glass performance.

Visible light has a wavelength between 380 and 780 nanometers. The infrared light, which is the heat energy transmitted as heat into a building, begins at 780 nanometers.

What Is Low E Glass?

In the past several years, low-e glass has gained some popularity, due to its energy efficient properties. But is it good enough to surpass the advantages of normal glass? Let’s break it down.

Low-e coatings minimise the amount of UV and IR light that can pass through the glass. In the same time, they do not prevent visible light from passing through the glass.

When the glass absorbs heat or light energy, the glass can either shift it away by air, or re-radiates by the glass surface. The ability of a material to radiate energy is classified as emissivity.

All materials, including glass, radiate heat in the form of long-wave. Reducing the emissivity of the surface improves the window’s insulating properties. This is why low e glass has gained popularity in recent years.

The glass has a microscopically thin coating that reflects long-wave infrared energy and heat. The glass reflects the heat away from the home during the Summer. In the Winter, the glass reflects the heat back into the home, preventing it from escaping to the colder conditions outside.

low e glass vs normal glass

In addition to this, double glazed windows help the home to retain more solar heat in the Winter. Compared to low e glass windows, double glazed windows allow 47% more solar heat gain.  Needless to say, during the Winter chilly months, every little ounce of heat helps

Why Double Glazing Does It Better

To understand which one is better, and solve the dilemma low e glass vs normal glass, we need to look at the building needs.

If a building needs to reject heat, in that case, low e glass is a better option. When the sun hits the windows, less of the heat will transfer into the room. This benefit of low glass is especially beneficial in the summer.

However, in the winter, low e glass will again reflect heat, and any heat you are hoping to get from the environment is lost. If you are relying on your windows to keep you warm in the winter, you will be disappointed.

Low e coating reflects heat anytime, regardless of whether it’s Summer or Winter, and even when you do not want it.

Double glazing windows, on the other hand, do a great job of keeping heat inside the building, and they allow heat gain during winter through the glass. As a general rule of thumb, double-glazing windows let more daylight. No matter if you live in a sunny or dark area, you will appreciate that extra light.

In addition to this, double glazed windows help the home to retain more solar heat in the Winter. Compared to low e glass windows, double glazed windows allow 47% more solar heat gain.  Needless to say, during the Winter chilly months, every little ounce of heat helps.

Double Glazed Windows: Top 5 Benefits

We talked about how double glazed windows improve your thermal efficiency. But they offer so much more than that to your home. And that is the reason why when comparing low e glass vs normal glass, you should always go for double glazed normal glass.

Installing double glazed windows will bring a huge array of benefits to your home. First and foremost, you will reduce heat loss, as the heat remains trapped between the two panes of glass.

If you live in a noisy area, double glazed windows will help you enjoy the peace and quiet of your home. No matter if you live close to a school or busy roads, double glazed windows will reduce noise by a significant percentage. In fact, studies show that double glazed windows reduce 60% more noise than single glazed windows.

One of the underrated benefits of double glazed windows is their low-maintenance. All of the windows we install are relatively easy to clean, and require little to no maintenance. You can swiftly clean the windows in no time at all.

Double glazed windows reduce condensation. Because of the area between the two panes, double glazed windows trap warm and moist air and do not let it come in touch with a cold surface. Reduced condensation means prevention of mould, and that is beneficial for both your physical and mental health.

And if that is not enough, double glazed windows are generally thought of as more secure. Unlike single pane windows, double glazed windows are hard for invaders to break through. They provide far more security. And they come with highly secure frames to boot.

Transform your property inside and out, with brand new double glazed windows. Take the first step to a more energy efficient home, by simply calling 0800 1700 636, or, alternatively, by clicking the button below!