New Zealand · Acceptable Solution
G4/AS1: Ventilation
Acceptable Solution for natural and mechanical ventilation within the scope of clause G4.
- Edition
- Fifth edition · effective 28 July 2025
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Ventilation
Open original PDF at page 19 Source wording and page order preserved. Drawings and table layouts remain available in the original PDF.
G4 VENTILATION ACCEPTABLE SOLUTION G4/AS1
Ventilation options for typical apartment layouts
Figure C.1.1.1A: Layout 1
Paragraph C.1.1.1
Internal wall
External
wall
BEDROOM
6m max for Paragraph 2.2.2.2
Internal
wall
External
wall
6m max for Paragraph 2.2.2.2 and Paragraph 2.4.2.1(d)(ii)
Openable
10 m max for Paragraph 2.4.2.1(d)(i)
windows
and
LIVING ROOM trickle
ventilators
in external
wall
OPEN
BATHROOM KITCHEN
Internal wall
Table C.1.1.1A: Ventilation options – Layout 1
Paragraph C.1.1.1
Natural Mechanical Combined
Room
ventilation ventilation ventilation
Bedroom Paragraph 2.2.2.2 Section 2.3 –
2.4.2.1(d)(ii) (6 m max distance) or
Living room Paragraph 2.2.2.2 Section 2.3
2.4.2.1(d)(i) (10 m max distance)
Paragraphs 2.4.2.1(d)(ii) (6 m max distance) or
Kitchen Section 2.3
2.2.2.2 and 2.2.2.3 2.4.2.1(d)(i) (10 m max distance)
2.4.2.1(d)(ii) (6 m max distance) or
Bathroom Paragraph 2.2.2.2 Section 2.3
2.4.2.1(d)(i) (10 m max distance)
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT 28 JULY 2025 Page 19
Edition and local adoption determine which requirements apply. Use the publisher’s document for the complete clauses, diagrams and amendments.