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Interior or Exterior Glazing for Building Curtain Walls?

Which is better, interior or exterior glazing? Unitised and stick curtain wall systems can be either of the two. Each one has its own advantages and disadvantages (especially when it comes to installation). Find out here if exterior or interior glazing is ideal for your building curtain wall.

Interior glazing for low-rise buildings

Often it’s recommended that interior glazed systems are specified for low-rise buildings. That’s because they allow for easy interior access. After all, these systems allow glass installation (into curtain wall openings) from the building’s interior.

On the other hand, exterior glazed systems allow glass components to be installed from the curtain wall’s exterior side. These exterior glazed systems often have additional installation requirements such as scaffolding.

Other curtain wall considerations

Engineers recognise that glazing has a huge effect on the following factors:

  • Thermal performance (e.g. heat conduction & solar radiation)
  • Moisture protection & water penetration
  • Indoor air quality (water leakage will encourage mould growth)
  • Daylighting & tinting
  • Acoustic performance (e.g. sound transmission from the outside)

That’s why engineers are careful when selecting materials for the glazing and curtain wall installation in general. Moreover, they also make sure that the materials will be adhering to specifications. As a result, they perform factory inspections and quality assurance procedures from product sourcing up to the delivery of the required materials.

Interior or exterior glazing? Stick or unitised?

Building engineers and designers often encounter these questions. Each building may have different requirements because of the location, climate and specifications of the owner or developer.

Furthermore, each material and installation type has its own advantages. The key here is to perform accurate analysis, simulation and performance tests. This way, they could evaluate the resulting thermal and acoustics performance of the building once the curtain wall is installed. It’s also a recommended way to optimise for performance while minimising costs. In addition, this could also pave the way for creating a more sustainable design.

Innovative ideas & smart engineering

Here at CGS Facade Group, we study all opportunities and constraints for designing and installing your building’s facade and curtain wall. Our facade engineers with international experience (e.g. Singapore, Hong Kong, Shenzhen, the Middle East).

Contact us today and we’ll study your vision and requirements. Our team will create a design that best reflects your company objectives.