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Terra Lana
With the removal of the schedule method from NZBC H1, residential projects under 300m² now rely on the calculation or modelling methods to demonstrate compliance. This shift places greater emphasis on whole-of-building performance — and on suppliers who can support accurate specification and documentation.
Terra Lana supports architects and designers navigating these changes by simplifying both product selection and compliance workflows.
Practical H1 support for specifiers
Terra Lana’s Specification Manager works directly with project teams to align insulation choices with H1/AS1 requirements and overall thermal performance targets.
This includes:
- Advising on insulation selection across walls, roofs and floors
- Writing project-specific insulation specifications within Masterspec
- Preparing H1 compliance reports suitable for building consent submission
This support reduces the complexity of calculation-based compliance while ensuring insulation integrates effectively into the wider building envelope.
“Terra Lana’s collaborative approach and expert guidance made it easy to meet — and often exceed — the new H1 requirements. Their support in specifying the right insulation solutions was invaluable across a range of projects.” — Eric Abba, Architect at Pac Studio
Designed for performance and comfort
Terra Lana’s wool insulation products are engineered to exceed required R-values under H1/AS1, while contributing to occupant comfort. Wool’s natural properties assist with moisture buffering and indoor air quality, supporting healthier internal environments.
As overheating becomes an increasing consideration in well-insulated homes, insulation plays a key role alongside passive design strategies. Terra Lana insulation supports more stable indoor temperatures when integrated with appropriate glazing, shading and ventilation design.
Technical data to support calculation methods
For teams working through calculation or modelling pathways, Terra Lana provides detailed product datasheets including thermal conductivity, R-values and dimensions. These resources support accurate modelling and help streamline compliance documentation.
Supporting better outcomes
As H1 compliance becomes more performance-driven, early collaboration is key. Terra Lana provides practical, project-specific support to help architects design comfortable, efficient homes — while simplifying the path to compliance.
To request support please visit: www.terralana.co.nz/contact
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