When checking for extension once a fire is knocked, you have to pull ceilings walls door and window moldings’. Most know this, but as officers you have to approach each room with a 6 sided approach. This means not only all 4 walls but the ceiling and floor. It is not uncommon for fire to burn down through a floor and ignite the floor space. The same holds true for ceilings as well as the attack. Knowing basic building construction will saving you from a rekindle. How will fire spread in balloon frame construction or in a garden apartment? If you fail to do a great job on checking for extension, when you come back on the rekindle the fire will be great!