Real fire analysis: Audi dealer, Belgium

Fire behavior of PIR KS1000 AWP core sandwiches manufactured by Kingspan

Fire behavior of PIR KS1000 AWP core sandwiches manufactured by Kingspan

The fire occurred outside a large Audi dealership in Belgium in October 2014. It was an intentional fire.

The building is clad in a KS1000 AWP sandwich panel steel frame with a 100mm thick FM Approved certified PIR core manufactured by Kingspan and comprises a single-storey showroom and workshop and an internal mezzanine for additional vehicles at the rear.

Conclusions

  • The PIR core sandwich panels suffered a fire that likely lasted at least 15 minutes after ignition.
  • It is likely that the coating was subjected to a maximum incident radiative heat flux of at least 31.8 kW/m2 over a period of at least 10 minutes.
  • Sandwich panels exposed to these conditions suffered damage to the level of delamination of the exposed steel skin of the panels, separating it from the PIR core, removal of the paint layer and pyrolysis of the PIR core material to a depth of approximately 40mm.
  • There are no signs of fire spreading inside the panels.

Download the independent study report carried out by Efectis that includes a complete overview of the fire and analysis of fire behavior