New Zealand Building Code H1/AS2 Energy Efficiency Acceptable Solution

This New Zealand Building Code compliance document provides the Acceptable Solution H1/AS2 for energy efficiency in large buildings. The H1/AS2 Acceptable Solution serves as a critical regulatory document defining the mandatory energy efficiency standards for buildings exceeding 300 square metres in New Zealand. This second edition, effective from 27 November 2025, outlines the specific technical requirements for thermal performance and energy conservation. It provides architects, engineers, and building certifiers with the necessary framework to ensure designs meet national legislative obligations. The document is structured to provide clear guidance on compliance pathways, helping practitioners navigate the complexities of thermal envelope requirements, building services efficiency, and overall energy performance within the context of New Zealand's unique climatic conditions.

The download is a 1.5 MB file containing .PDF files.

Professionals use this PDF document as a primary reference during the design development and building consent application stages. It is typically accessed alongside CAD or BIM software to verify that building envelopes, glazing ratios, and insulation specifications align with current statutory requirements. Designers must cross-reference the technical tables and performance criteria within this document to ensure that their project documentation is fully compliant before submission to local authorities, ensuring that energy modeling and material selections meet the necessary regulatory benchmarks for large-scale construction projects.