Fire Ratings

As an architect or designer you will often need to prove that proposed structures meet a number of fire safety standards including the mandatory provisions of the New Zealand Building Code fire safety clauses. This page will tell you where to find this information regarding Dulux coatings and some background regarding the regulations.

 

Important Information:


The building code clauses C1-C6 protection from Fire (2012) have been revised.


Dulux Material Group Numbers


Dulux have tested a number of systems on various substrates, to ISO 9705 and the material group numbers are displayed below:
Dulux Fire Ratings

 

Background Information


As architect or designers you must prove that proposed structures will meet a number of fire safety standards including the mandatory provisions of the New Zealand Building Code fire safety clauses:
Building code C Clauses limit the likelihood of fire, limit the spread of fire, allow people to move to a safe place, help firefighters do their job and limit the likelihood of the building collapsing. Properties of internal surface linings is the section relevant to Dulux paint finishes.

C1 - Outbreak of Fire
C2 - Means of Escape
C3 - Spread of Fire
C4 - Structural Stability During Fire

Clause C3 - Spread of Fire is designed to safeguard people from injury or illness when evacuating a building during fire. This is the aspect of fire safety that paint manufacturers are often called to comment on.

The New Zealand Building Code requires that new buildings need to have various areas within the building designed to limit the spread of fire.


The Substrate Is a Key Part of the System


The material group quoted is always for a system including the substrate and is not transferrable to other substrates.


Not All Areas Require the Same Results


Rooms and functional spaces have different requirements depending on their use and purpose. The material groups are especially important for areas such as exitways and sleeping quarters of rest homes etc. By use of the local authorities can be sure that exit ways, for example, will be as safe as possible in the event of a fire and not impede the escape of occupants from the building.

 

FAQ's


1. The system I want to specify is not listed.
Please contact your Dulux representative or phone 0800 800 424 to request the testing of your preferred system.


2. The system I want to specify does not meet the requirements of the area of building. i.e. needs to be material group 1 or 2 but is 3.

Unfortunately this means the system/coating and substrate is not suitable for the applicaiton.


3. What is the difference between 1 and 1S?
1S means there was no flashover during the test and smoke generated meets requirements. 1 means there was no flashover but the smoke limits were not met.


4. Is MDF counted as a timber substrate?
Yes. Customwood, plywood, shawdowclad, particleboard and other types of manufactured timber products are classified as timber substrates.

 

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