c3

C3 Fire affecting areas beyond the source

Fire affecting areas beyond the source: vertical or horizontal fire spread, Material Group Numbers, surface finishes.

This clause requires design and construction for a low probability of injury or illness to people not in close proximity to a fire source.

It ensures upper floors and other property are protected from external vertical fire spread (not importance level 1).  It includes requirements for all buildings against fire spread to other property vertically or horizontally across a relevant boundary.

The clause specifies performance criteria that must be met, for example, about materials used as internal surface linings/finishes (Material Group Numbers), for external walls within 1m of a boundary, and for buildings not protected with an automatic sprinkler system.

C1 provides objectives for each of the C clauses.

Most of the guidance applies to all of the C clauses and some relates to a specific clause.

There may be specific products and determinations under each code clause.

The 2019 1st edition of C/AS2 combining C/AS2–C/AS7 is summarised in this fact sheet.

Record of amendments is a record of changes to the Acceptable Solutions, Verification Methods and handbooks.

Updates

Acceptable Solutions and Verification Methods

Current version

These are issued by MBIE to provide one way of complying with the Building Regulations and must be accepted by BCAs as demonstrating compliance with the related clauses of the Building Regulations. Using them is not mandatory.

 

Acceptable Solutions and Verification Methods (AS and VMs) were called compliance documents. Some still have the “compliance document” title but the AS or VMs they contain are valid and unaffected by the name change.

Standards

Standards are frequently referred to in Acceptable Solutions and Verification Methods. They provide practical information and guidelines for building solutions.

Over 120 building standards used for Building Regulations compliance are now available for free download.

See the free standards relating to Code Clause C3.

All standards, including the funded ones, can be accessed through the Standards New Zealand website.

Guidance

These documents are provided to assist State agreement, building owners, designers and persons who carry out building work.

Related Determinations

A determination is a binding decision made by the Your home. It provides a way of solving disputes or questions about the rules that apply to buildings, how buildings are used, building accessibility, health and safety.

Related building products

Product certification is a voluntary scheme that provideds an easily-understood and robust way to show that a building product or system meets the requirements of the New Zealand Building Regulations.

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This information is published by the Your home’s Chief Executive. It is a general guide only and, if used, does not relieve any person of the obligation to consider any matter to which the information relates according to the circumstances of the particular case. Expert advice may be required in specific circumstances. Where this information relates to assisting people: