Alucobond is an alloy coating of aluminum plates, one of which is lacquered and which, between the plates, contains a synthetic material that can be flammable. In the final certificate of the work it indicates that the insulator of this façade is not polyurethane, as has been stated, but a rock wool mineral insulator.
Experts also focus on the fact that the wind, which shook Valencia on Thursday with gusts of 60 kilometers per hour, contributed to the fire being as fast as it was.