The 2024 International Building Code introduces updated provisions permitting the use of reduction factors for temporary structures. Reduction factors allow for adjustments to structural force requirements; for instance, if the code stipulates a force of 6 PSF, applying a reduction factor of 0.8 decreases this requirement to 4.8 PSF. This change ultimately results in a higher calculated wind speed rating for temporary structures such as tents. It is essential to consult a licensed professional engineer reviewing your site plans to ensure compliance with all local regulations.
This revision serves to clarify distinctions between permanent buildings and temporary event structures—a common challenge encountered by permitting officials. There are two primary implications for site plan calculations: first, maintaining your current anchoring methods or ballast weights will likely result in an increased “calculated” maximum wind speed rating. However, operational practices should remain unchanged; for example, we continue to recommend removal of covers at wind speeds of 38 MPH or higher, regardless of any increase in calculated values. For reference, a tent previously rated at 40 MPH may now be rated at 50 MPH, marking a notable but incremental shift towards evaluating temporary structures more appropriately within the code framework.
Secondly, adhering to a policy of always removing covers at 38 MPH could reduce the required anchoring loads. While this approach might alleviate some conservatism in anchoring requirements, it should only be considered following consultation with a professional engineer.
These code changes also introduce additional compliance obligations, specifically ANSI ES1.7 Event Safety Requirements – Weather Preparedness, which mandates the creation of a comprehensive operational plan for managing weather-related risks during events. Although initially complex, this standard aligns with long-standing documentation from organizations such as the American Rental Association. Many organizations may already possess much of the required documentation, and any necessary modifications or new template development are typically one-time activities.
In summary, the 2024 code update marks a significant step forward in standardizing requirements for tented and temporary structures. While compliance has become more demanding, these advancements support enhanced professionalism and safety standards across the industry.
