IIHS Details Roof Strength Tests in Latest Video

Jason Siu
by Jason Siu

The third video from the “Inside IIHS” series has been released, with the Insurance Institute for Highway Safety giving us a look at how it determines the roof strength of vehicles.

In the latest video, IIHS details the crush machine used to determine a vehicle’s roof strength while reviewing the importance of strong roofs in rollover crashes.

SEE ALSO: IIHS Details Front Crash Tests in New Video

To measure the roof strength of a vehicle, IIHS has a metal plate pushed against one corner of a vehicle’s roof at a constant speed. The maximum force sustained by the roof before five inches of crush is compared to the vehicle’s weight. From there, IIHS calculates a strength-to-weight ratio.

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Jason Siu
Jason Siu

Jason Siu began his career in automotive journalism in 2003 with Modified Magazine, a property previously held by VerticalScope. As the West Coast Editor, he played a pivotal role while also extending his expertise to Modified Luxury & Exotics and Modified Mustangs. Beyond his editorial work, Jason authored two notable Cartech books. His tenure at AutoGuide.com saw him immersed in the daily news cycle, yet his passion for hands-on evaluation led him to focus on testing and product reviews, offering well-rounded recommendations to AutoGuide readers. Currently, as the Content Director for VerticalScope, Jason spearheads the content strategy for an array of online publications, a role that has him at the helm of ensuring quality and consistency across the board.

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