E2/AS2, 4th edition

E2 External Moisture Acceptable Solution E2/AS2 Fourth Edition provides a compliance pathway for meeting the weathertightness performance requirements of Clause E2 of the New Zealand Building Code, specifically for earth buildings. The scope includes buildings constructed in accordance with NZS 4299, with modifications to address materials, footings, walls, wall openings, and penetrations. It is suitable for buildings using unstabilised or stabilised earth construction. The acceptable solution includes specific construction details such as damp-proof courses, soffit junctions, and joinery interfaces. The fourth edition introduces a standalone format, improved clarity, and updated references and definitions.