"As the crew came out and realised a firefighter was missing, we initiated emergency procedures immediately to search for the firefighter."
Brown had activated his distress signal unit which sounds a loud alert.
Lakin said two firefighters entered the burning building "like a train" and got the spluttering firefighter out within two minutes.
"It was a textbook rescue. I'd like to praise the two firefighters who went in to rescue Jared. They did really well."
Lakin said they would look at the cause and origin of the fire, the Fire Service response and Brown's injury, including whether his equipment was adequate.
Fire investigator Mike McEnaney said it appeared the blaze started near the centre of the building on the top floor. The storeroom or workroom was unoccupied and the fire was not being treated as suspicious, he said.