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With a lot of recent coverage over fire rating classifications, it can be difficult to keep up with exactly what these classifications are. What does it mean if a product is 'A1" and what does non-combustibility mean?
To achieve non-combustible and commit to futureproofing construction we need to look at the building materials that we use and how they could interact with different scenarios throughout a building's lifetime. If you haven’t come across fire ratings much, it can be difficult to understand each of the classifications.
We will walk you through the meaning of each of the reactions to fire classifications, so you can understand exactly what is meant and ensure your building is as safe as possible.
Non-combustibility is something we hear quite a lot when we talk about materials used on the facade of a building. This wasn’t always the case. Unfortunately, this movement in the right direction came down to tragedies that we hope to never see again.
All of these are put together to describe the behaviour of a material once exposed to fire. To give you a flavour of how these classifications look we have set out some helpful examples below:
A1 – Non-combustible, this will not contribute to the spread of fire
A2-s2, d0 – Also non-combustible but will produce a bit of smoke if exposed
B-s2, d2 – This will offer a little contribution to the fire but will produce smoke and flaming droplets
F – This is a flammable material that will significantly contribute to the spread of flames