New Zealand Building Code E2/AS2 Acceptable Solution

This New Zealand Building Code E2/AS2 Acceptable Solution document outlines essential external moisture provisions for earth buildings. The New Zealand Building Code E2/AS2 is a critical regulatory document defining the acceptable solutions for managing external moisture in earth-based construction. This fourth edition, effective from 28 July 2025, provides the necessary technical requirements and methodologies for ensuring building envelope performance. It details specific standards for moisture resistance, weatherproofing, and material durability, tailored to the unique structural properties of earth buildings. The document serves as a primary reference for architects, engineers, and building surveyors operating within the New Zealand regulatory framework to ensure compliance with national safety and construction standards for moisture control.

The download is a 1.6 MB file with the texture set at 2K, ready for any metal/roughness PBR workflow in Blender, 3ds Max, SketchUp, Unreal Engine or D5.

Professionals integrate this document into their project workflow as a primary reference guide during the design and consenting stages of a building project. It is typically consulted to verify that proposed wall assemblies, cladding systems, and detailing meet the performance criteria mandated by the New Zealand Building Code. Designers use the technical specifications within this guide to inform material selection and construction detailing, ensuring that documentation submitted for building consent aligns with established national standards for moisture protection and structural integrity.