NZBC G12/AS1 is sharpening expectations around water safety and it’s shifting tapware from a finishing touch to a critical compliance decision. In commercial bathrooms, performance, durability, and public health are now tightly linked. Get it wrong, and the risk sits with the building for decades.
At its core, G12/AS1 is about controlling water quality, temperature, and system integrity from source to outlet. That has direct implications for how tapware is specified:
- Safe potable water: Every wetted component must protect water quality. Materials and internal construction matter; lead-free brass ensures compliance.
- Backflow protection: Contamination risks must be actively prevented. This requires integrated thinking between tapware, valves, and upstream devices, not fragmented responsibility.
- Safe water and pipe temperatures: TMVs with lockable settings are essential to prevent scalding. The detail that’s often missed is long-term stability and access for maintenance.
- System durability: Commercial environments are unforgiving. Corrosion resistance and robust DZR construction are baseline requirements, not upgrades.
- Water pressure and flow: Systems must deliver consistent, appropriate performance. Poor calibration leads to either waste or user dissatisfaction.
- Legionella mitigation: Design must minimise stagnation and maintain correct thermal control. Tapware selection influences how effectively systems achieve this.
This is where specification proves its value. Our Sanela Spartan taps and Supreme Time Flow tapware are fully compliant with the G12/AS1 framework, boasting durable and safe lead-free DZR brass construction, precise and simple user control, consistent pressure and flow performance, better hygiene and long-term reliability. All this wrapped up in sleek, modern designs makes tap specification an easy decision.
The expectation is straightforward. Water must be safe, systems must perform, and components must last. Projects that embed these principles early don’t just comply, they avoid the operational and reputational costs that come from getting it wrong.
We can prepare tailored specification packs, power and cost saving estimates, CAD/Revit files or compliance documentation to make your job easy.
Contact us at admin@splwashrooms.co.nz for expert advice.