New Zealand Building Code G4/AS1 — Ventilation (Acceptable Solution)

New Zealand Building Code G4/AS1 — Ventilation (Acceptable Solution) — New Zealand Building Code compliance document covering Mechanical / HVAC acceptable-solution, 5th edition edition, published by Ministry of Business, Innovation and Employment (New Zealand). Crown copyright material published by MBIE (building.govt.nz), licensed for reuse under CC BY 4.0 (NZGOAL). Crown copyright material sourced from the New Zealand Ministry of Business, Innovation and Employment (building.govt.nz), licensed for reuse under a Creative Commons Attribution 4.0 International Licence.