In order to achieve the best performance in terms of thermal insulation and protection against thermal shocks, it is essential to take into account some recommendations and best practices in the selection and installation of insulating glazing.

Prevention of Thermal Shock

Thermal shock is a common problem with glazing with high energy absorption, such as tinted or reflective glass. This can occur when the glass is exposed to large temperature differences between different areas. To prevent this phenomenon, it is important that, from the design phase, the degree of energy absorption of each sheet of glass is checked. Under certain conditions, even glass with low energy absorption can experience thermal shock, especially when dynamic shadows are present on the glass or when the glass is exposed to cold temperatures and the sun shines on it. Also, the unpeeled label on the outer face of the bottle can contribute to the creation of favorable conditions for the occurrence of thermal shock.

Choosing the Width of the Spacer Rods

To ensure optimal thermal insulation, it is recommended to use spacer bars with widths greater than 16 mm. Smaller widths can negatively affect the thermal insulation performance of the glazing. The correct size of the rod ensures superior thermal performance, reducing the risks of condensation and improving the energy efficiency of the assembly.

Use of Argon Gas in the Vitreous Cavity

To enhance the thermal performance of insulating glazing, it is essential to require the interior of the glazing cavity to be filled with argon. This will significantly improve thermal insulation, with a difference of around 0.2 W/m²K in double glazing. The argon filling must be at least 90% and the insulating glass manufacturer must be able to demonstrate that they have the necessary equipment to measure the argon concentration.

Installation at High Altitudes

For glazing installed at high altitudes, it is essential to require internal pressure equalization valves. These valves are essential to prevent glass panes from breaking due to pressure differences between the inside and outside of the building.

Using LowE Glass for Superior Thermal Performance

For double glazing, it is recommended to request at least one sheet of LowE glass. This will significantly improve the thermal insulation of the assembly. In the case of triple glazing, two sheets of LowE glass (first and third sheet) will provide a much better thermal performance, being an excellent option for buildings that require high thermal control.

Removal of the LowE Layer on the edges of the glass

To ensure proper durability of insulating glazing, it is important that the LowE layer is removed around the perimeter to a width of approximately 10 mm. Failure to follow this recommendation can lead to rapid fogging of the insulating glass, which will compromise its long-term effectiveness.

Sun Protection and LowE Combination + Sun Protection

With climate change and rising temperatures, summer sun protection has become essential. For triple or double-insulated glazing, it is recommended to request double-role glass – solar protection and LowE (eg 4S Evo glass). This will help maintain optimal thermal comfort inside the building while protecting against excessive heat.

Reducing Perimeter Condensation and Improving Thermal Performance

To reduce the formation of condensation on the inner face of the glazing and to improve the heat transfer of the joinery + glazing assembly (Uw), it is recommended to request "warm edge" battens. These rods have a lower coefficient of thermal conductivity than traditional materials and contribute significantly to improving insulation and preventing condensation.

Conclusion

The right choice of materials and technologies for insulating glazing can make a difference in terms of energy efficiency, thermal comfort and product life. Following these tips will help increase the performance of the glazing and ensure long and trouble-free use.