Extending the Life of an Existing ACM Façade System

The Rosedale ACM refurbishment project focused on restoring the appearance, consistency, and long-term performance of an ageing commercial façade system.

WRNZ completed a full façade refresh designed to improve coating durability, restore visual consistency across the ACM panels, and extend the service life of the building exterior without requiring full panel replacement.

Using a tailored refurbishment methodology, the project addressed coating deterioration, environmental exposure, and surface ageing while delivering a clean, modern finish across the entire façade.

Project Scope

WRNZ carried out a comprehensive ACM façade refurbishment including:

  • Surface preparation and restoration
  • ACM panel refinishing
  • Coating system application
  • Colour consistency restoration
  • Protective exterior finishes
  • Building envelope rejuvenation
  • Long-term coating protection

The refurbishment process was specifically designed around the condition of the existing ACM system and the environmental exposure of the site.

Tailored ACM Refurbishment Approach

ACM panel refurbishment is rarely a one-size-fits-all process.

Every façade deteriorates differently depending on:

  • age of the coating system
  • environmental exposure
  • UV breakdown
  • maintenance history
  • substrate condition
  • coastal or industrial contaminants

Because of this, WRNZ develops a customised refurbishment methodology for every project.

Some ACM façades may only require surface restoration and refinishing, while others need more extensive preparation, corrosion treatment, substrate repairs, or specialised coating systems designed for long-term durability.

For the Rosedale project, the focus was on restoring the building’s exterior consistency while improving coating performance and protecting the façade against ongoing environmental wear.

Key Project Challenges

Commercial ACM refurbishment projects often involve several technical challenges that must be carefully managed throughout the process.

For this project, WRNZ addressed:

  • Existing coating deterioration
  • Surface ageing and fading
  • Maintaining consistent panel appearance
  • Environmental and UV exposure
  • Long-term coating adhesion
  • Protection of surrounding building elements
  • Minimising disruption to the commercial site

Detailed preparation and coating application processes were used to ensure a durable and visually consistent finish across the façade system.

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