Colour, High Performance Glass, Sustainable & Thermal Risk in Modern Façades

10am - 12.15pm | Colour, High Performance Glass, Sustainable & Thermal Risk in Modern Façades

10.00am - 11.00am Craig Ell | Resene

Synopsis: World of Architectural Coating – NASA we have a problem!!

The story of paint coatings really could full a library, and while paints and emulsions have been around for thousands of years the rapid growth in the development of synthetic resins post WW2 have changed the game in terms of coatings. This presentation really focuses on Architectural coatings both acrylic and specifically silicates, which were first developed in the mid-19th century in Germany, and how these have evolved and changed over time as building materials, climate, technology and consumer requirements and demands have changed. The issue of cleanability or self-cleaning covered in this Webinar even touched the NASA moon programme in the early 70’s, hence the title and video included within this presentation.

Key Learning Outcomes:

• Understand the science behind emulsion coatings, including microscopic structure, absorption, and transmission rates.
• Define mineral and silicate paints, including their origins, strengths, and limitations.
• Differentiate between silicate, styrene acrylic, and silicone resin emulsion systems, with an understanding of permeability, durability, and façade performance.

11:00am - 12:00pm David Waters and Robyn Gibbard | Metro Performance Glass

Synopsis: Managing Solar Gain: The Role of High Performance Glazing in Thermal Comfort

In a typical New Zealand home, glazing represents approximately 8% of the building envelope, yet it can contribute five to eight times that in heat gain and heat loss. When solar gain is not well managed, buildings are more prone to overheating, increasing the need for artificial cooling to maintain occupant comfort.

Glass is the only building material that allows both light and heat to pass through it, making glazing a critical factor in overall thermal performance. Under New Zealand conditions, solar radiation can be effectively managed through informed design decisions, supported by appropriate glazing selection and performance modelling.

This CPD session examines the role of Metro Low E high performance glazing can lower heat gain by up to 71% and reduce heat loss by up to 61% compared to standard double glazing, and highlight that the key to product selection is all about balance.

Key Learning Outcomes:

• Identify the primary causes of overheating in New Zealand buildings and the role glazing plays in thermal performance
• Understand how thermal and solar modelling can be used to assess and mitigate overheating risk during the early design stages
• Evaluate high performance glazing options to help reduce the risk of overheating while maintaining comfort and natural light.