When is a Defensive Strip Operation used?

When is a Defensive Strip Operation used?

• A. Used when we want to protect an exposed portion of a building
• B. Controls spread of fire by changing its horizontal direction into vertical direction
• C. To ventilate the attic
• D. To upgrade building equipment

Answer: (B)

A Defensive Strip Operation is used to control fire spread by creating a vertical vent path. By stripping away a section of the roof along the fire area, you break the attic’s horizontal fuel path and force hot gases and flames to vent upward and outward through the roof. This redirects the fire’s flow from spreading laterally across the attic to an upward, vertical exit, which helps protect exposures and supports a defensive stance when interior attack isn’t safe or feasible. It’s not about simply ventilating an attic or upgrading equipment; it’s a deliberate tactic to limit horizontal spread and manage fire behavior from a defensive position.

A Defensive Strip Operation is used to control fire spread by creating a vertical vent path. By stripping away a section of the roof along the fire area, you break the attic’s horizontal fuel path and force hot gases and flames to vent upward and outward through the roof. This redirects the fire’s flow from spreading laterally across the attic to an upward, vertical exit, which helps protect exposures and supports a defensive stance when interior attack isn’t safe or feasible. It’s not about simply ventilating an attic or upgrading equipment; it’s a deliberate tactic to limit horizontal spread and manage fire behavior from a defensive position.