Smouldering fire

Problem of smouldering fire beneath debris/ ongoing fire sports centre
Overheating in fan and then smell of smoke observed by the owners. Brown stains on the ceiling.
Smouldering fire in insulation consisting of hard-compressed wood-wool slabs / roof and walls
A small vehicle fitted with Cutting Extinguishers is faster and wins essential time
Cutting Extinguishers reduce the extent of damage as no other method