Florida Building Code Practice Exam

Fire blocking in wood frame construction is NOT required in which condition?

1. In concealed spaces of stud walls

2. At all interconnections between concealed vertical and horizontal spaces

3. At openings around vents and pipes

4. At interconnections between unconcealed vertical stud wall spaces

The correct answer is: At interconnections between unconcealed vertical stud wall spaces

In wood frame construction, fire blocking is essential for controlling the spread of smoke and flames through concealed spaces. However, the requirement for fire blocking is not mandated in interconnections between unconcealed vertical stud wall spaces. This is because these spaces are visible and accessible, allowing for the inspection of any potential fire hazards, unlike concealed spaces where fire blocking may be necessary to prevent the passage of fire. In other scenarios, such as concealed spaces of stud walls, all interconnections between concealed vertical and horizontal spaces, and openings around vents and pipes, fire blocking is typically required to maintain fire safety standards. These regulations help to ensure that fire does not travel unchecked through hidden areas, which can pose significant risks during a fire event, especially in the case of obstructed visibility and accessibility.