A fire has developed inside a building,then broken through external element of the Building Envelope and is leaping up the exterior of the building, with a risk of re-entry at a higher floor level, causing increased risk to lives by degrading personnel's "Means of Escape" also severely limiting the Fire services controlling the fire and allowing the fire to proliferate to an adjacent building.

This is the Windsor tower fire in Madrid...Spain's worst fire, and demonstrates the compartmentisation failure, which had Blast Proof & Fire Solutions products been specified, would have provided compartmentisation, thus preventing the proliferation of the fire.