AIS Insulated Glass Unit (IGU)
AIS IGU consists of two or more panels of glass separated by an air space and aluminium or other types of spacers, around the edges, sealed to the perimeter in a controlled condition. Space contains a drying agent which eliminates moisture vapour in the cavity. This combination makes this product a superior energy-efficient method of glazing.
Featured and Benefits
- Reduces heat build-up in summer and heat loss in winter.
- Lowers UV transmission.
- Lowers noise penetration.
- Increases wind load strength.
- Improves security.
Frequently Asked Questions
An Insulated Glass / IGU is a high-performance glazing solution designed to enhance energy efficiency and comfort in buildings. It consists of two or more glass panels separated by an air space and sealed with a perimeter spacer, typically made of aluminium.
The space between the panes contains a drying agent to eliminate moisture vapour that improves durability and performance. This construction curbs both heat loss and gain, making IGUs ideal for energy-conscious building design.
An IGU glass reduces heat transfer through its multi-layer construction.
- In summer, the air-filled space between the glass panes acts as a barrier, helping to slow down heat from outside and keeping the interior cooler.
- In winter, the same space helps trap indoor heat, preventing it from escaping and keeping interiors warmer.
Yes, an Insulated Glass generally costs more than single-pane glass due to its multi-layer construction, air or gas-filled spaces and specialised sealing. However, the higher upfront cost is offset over time through energy savings, improved thermal comfort and reduced reliance on heating or cooling systems.
Insulated Glass / IGU are designed for long-lasting performance with minimal maintenance, but they do require some attention to maintain their performance. The seals around the edges may degrade due to temperature fluctuations or UV exposure, allowing moisture to enter and cause condensation or fogging between the panes. In some cases, the drying agent used for insulation can leak out, reducing the thermal performance of the unit. Scratches, cracks or other damage can also compromise the IGU’s effectiveness. Despite these concerns, Insulated glasses are very durable and can last for many years when properly installed and maintained. To keep IGUs performing well, regular inspections are crucial. This includes checking for moisture, ensuring seals are intact, and addressing any damage promptly to maintain insulation, durability and long-term energy efficiency.
Yes, IGU (Insulated Glass Unit) can be customised to suit different climates and specific building requirements. The type of glass, thickness, number of panes and type of gas fill between the panes can be adjusted to improve thermal insulation, reduce heat gain in hot climates or retain warmth in colder regions. Special coatings, such as low-emissivity (Low-E), learn more about what is low e glass or reflective films, can also be added to control solar heat, glare and UV exposure. For example, AIS Ecosense Essence is a modern Low-E glass product designed specifically for IGUs. It enhances building insulation and promotes energy efficiency, making it a versatile choice for residential, commercial and high-rise buildings across diverse environmental conditions.
IGUs, or Insulated Glass Units, are widely used in applications where improving thermal performance, maintaining comfortable indoor temperatures and increasing energy efficiency are important priorities. They are commonly installed in residential and commercial windows, doors and facades, helping to reduce heat transfer between the indoors and outdoors. Beyond standard windows, IGUs are also suitable for skylights, curtain walls and large glass panels in high-rise buildings where controlling temperature and minimising condensation are critical. In addition to energy benefits, IGUs help reduce outside noise, enhance overall comfort and contribute to long-term savings on heating and cooling costs. This makes them a preferred choice for modern homes, office spaces and public or commercial buildings alike.