This manual provides information about James Hardie two way fire and acoustic systems using timber or steel frames in residential or non residential construction, such as:
- Separating walls in multi unit residential or commercial buildings
- External walls close to boundaries
In terms of the New Zealand Building Code (NZBC) requirements, fire rating is referred as FRR (Fire Resistance Rating) and is measured in minutes e.g. a FRR 30/30/30 means a fire rating for 30 minutes. Further explanation regarding this is provided in section 7.6 of this technical specification.