40 Hour Property and Building Inspection Practice Test

Is the prevalence of lack of fire stopping greater in balloon frame construction compared to platform framing?

1. Yes

2. No

3. Only in specific conditions

4. It depends on the design

The correct answer is: No

Balloon frame construction is characterized by long, continuous vertical members (studs) that run from the foundation to the roof, allowing for unbroken vertical cavities. This design can create greater potential for fire movement since there are longer, continuous channels for flames and smoke to spread. In contrast, platform framing involves shorter studs and horizontal members where each floor is built as a separate platform, providing more fire breaks due to the interrupted vertical cavities. In the case of fire stopping, which is used to prevent the spread of fire and smoke through concealed spaces in a building, platform framing typically allows for better installation and effectiveness of fire stopping measures. The shorter vertical spaces in platform framing mean that fire stops can be more effectively placed to inhibit the upward movement of flames and smoke between floors. Thus, the prevalence of a lack of fire stopping is generally less of an issue in platform framing compared to balloon framing. This provides a clearer understanding of fire safety practices in construction types, underscoring the importance of fire stopping measures, especially in older balloon frame structures.