What is one overhaul concern if the attic insulation is blown-in cellulose?

Blown-in cellulose insulation poses a significant concern during overhaul operations due to its ability to smolder for extended periods. This characteristic is critical because, after the visible flames are extinguished, any remaining hot spots within the insulation can continue to burn slowly. This smoldering can lead to a resurgence of fire if not thoroughly addressed, as it can potentially ignite surrounding materials or reignite once oxygen is reintroduced.

Firefighters need to be particularly vigilant in areas where cellulose is present because it can retain heat and may not immediately present signs of combustion. It's essential to ensure that the area is adequately inspected and any areas of concern are properly ventilated and cooled to prevent a rekindle. Understanding these properties of cellulose insulation allows firefighters to take more precautionary measures during the overhaul phase, leading to safer operations and better outcomes for fire suppression efforts.