So although the Cladding used is not Fire Resistant it is class 0.
PE cladding and fire ratings - what does it all mean?
Lets start with the British results, to BS (British Standard) 476 part 6 &7. As you can see, and similar to the ASTM results on the first data sheet, both the PE and FR material have achieved ‘class 0’. What does that mean – in essence, it means it passes. The test is performed as shown in the diagram below (thanks again Bayer!)
The ‘cladding tile’ is the specimen. It is placed in a holder and subjected to 20 mins of burning from a gas burner, with electric heaters also heating the surface. Go back to our diagram of the cladding tile and see if you can work out why the PE tile passes in the same way the FR one does…
If you haven’t picked up the problem yet, don’t worry, because the German results are very telling. In Germany, the tiles are tested to DIN 4102, and as you can see this time the PE and the FR tiles have DIFFERENT results. PE has been rated as ‘B2’ whereas FR has been rated as ‘B1’. If you have made it this far you really want to know what this means, and once again I can refer to the helpful guide from Bayer for guidance.