FAQs

Vacuum Insulating Glass (VIG) is a type of high-performance insulating glass that consists of two panes of glass with a vacuum space in between. This vacuum provides extremely low heat transfer, meaning that VIG provides excellent thermal insulation, comparable to a thick wall, but in a much thinner design.

Excellent thermal insulation: Keeps heat in during the winter and out during the summer. Thin design: Provides insulation comparable to triple glazing, but is thinner and lighter. Sound insulation: Reduces external noise pollution. Durability: Lasts longer than traditional double or triple glazing.

Vacuum insulating glass has a vacuum between the glass layers, instead of air or gas, which almost eliminates thermal conductivity. This makes it much more efficient in thermal insulation, even with a thinner glass thickness compared to double or triple glazing.

VIG is much thinner than other types of glass. VIG is available from 6mm thick, while even better insulation performance is delivered. This makes it extra suitable for renovations where thin window frames need to be retained.

In addition to thermal insulation, VIG also offers effective sound insulation. The vacuum space between the glass panes helps to dampen sound waves, resulting in a quieter living environment, especially in urban areas or near busy roads.

Yes, vacuum insulating glass can often be installed in existing window frames without the need for major adjustments. However, it is important to have this assessed by a specialist, as every window frame is different.

The cost of vacuum insulated glass varies depending on the size, thickness and specifications of the glass. Although it is a larger investment than traditional glass, the cost is often offset by lower energy bills and the longer lifespan of the glass.

The savings depend on several factors, such as the size of your windows and the type of glass you currently use. In general, VIG can significantly reduce heat loss, which can lead to significant savings on your heating and cooling costs.

Installing VIG requires precision and experience to fully exploit the insulation benefits. It is highly recommended that you employ a professional glazier for installation to ensure the glass is installed correctly.

The installation time depends on the number of windows and the complexity of the installation. A professional installer can give you a detailed estimate after an initial inspection.

Yes, by reducing energy losses, vacuum insulating glass contributes to lower CO2 emissions. In addition, energy consumption in the home can be significantly reduced, which contributes to a more sustainable lifestyle.

Vacuum insulating glass has a very long lifespan, often more than 25 years, depending on the conditions and maintenance.

You can request more information and a quote via our contact page. Our specialists are ready to answer your questions and help you choose the best solution for your home.

The U-value, also known as the heat transfer coefficient, indicates how much heat is lost through the glass.

ZTA is the solar factor: the ratio between how much light passes through the glass and how much is blocked by the glass. The angle is 45 degrees. The higher the ZTA, the more sunlight passes through the glass. The factor ranges from 0 to 1. It is also used as a percentage, so from 0 to 100%, where 100% is equal to an open window and 0% to a wooden panel, for example.

LTA is the light transmission factor of a window. It indicates the ratio between how much visible solar radiation passes through the glass and how much is blocked by the glass. This is calculated at a perpendicular angle of incidence (90 degrees). Clear single glass has an LTA value of 0.9. Modern HR++ glass blocks more visible solar radiation and has an LTA value between 0.7 and 0.8.

The LTA is therefore the light transmission factor of visible sunlight. The ZTA value can be low while the LTA is high and vice versa.

The new standard for ZTA

In the Netherlands, the international standard is increasingly used, namely the g-value. Where the ZTA is calculated with an angle of incidence of 45 degrees, the g-value is calculated at an angle of incidence of 90 degrees. This means that the g-value is always higher than the ZTA, because sunlight that shines perpendicularly onto the glass gives less reflection than sunlight that falls diagonally.

The g-value is the ratio between the total amount of solar energy that enters a room through the glazing (directly and indirectly) and the amount of solar energy falling perpendicularly onto the glass. The g-value is between 0 and 1. The higher, the better the light transmits. Good light transmitting glazing has a g-value of approximately 0.85.

Although double and triple glazing use air or gas between the glass layers, VIG uses a vacuum. This vacuum offers better insulation, even in a thinner version

The energy savings depend on the size of your windows, the installation and your current type of glass. In general, VIG can significantly reduce your energy consumption by limiting heat loss.

VIG can be installed in existing window frames in most cases.
The installation is carried out by professional glaziers who ensure that the glass is installed correctly for optimum performance.

Yes, due to its improved insulation performance, VIG reduces the need for heating and cooling, resulting in lower CO2 emissions and a smaller ecological footprint.

Vacuum insulating glass has a long lifespan of up to 50 years. It is resistant to most weather conditions and retains its insulating properties throughout its entire lifespan.

Yes, VIG can be combined with other types of glass, such as safety glass or soundproof glass, to meet specific needs.