The portability of a structure does not exempt it from the laws of physics, nor the letter of the code. is clear: If people occupy it, the roof must stay on, whether the foundation is poured concrete or a parking lot tie-down.

The 2022 edition adopts reliability-targeted ground snow loads, representing a significant shift from the previous 50-year mean recurrence interval (MRI) approach. This results in updated snow load maps for each Risk Category. The standard also revises the method for estimating snow drifts to include a new winter wind parameter, W2, and has updated the rain-on-snow surcharge load from 5 psf to 8 psf.

Proper classification of a portable structure as a "temporary structure" allows for specific, yet safe, design allowances.

ASCE 7-22 relies on digital geodatabases rather than just printed maps for more accurate site-specific hazard assessment. For example: Modular shipping containers used for housing Temporary stages and event scaffolding Mobile medical units or disaster relief shelters Updated ASCE 7-22 standard now available

ASCE 7-22 wind load standard adds tornado chapter The criteria defend against tornadic winds measuring up to about 135 mph. American Society of Civil Engineers (ASCE) ASCE 7-22 Flat Roof Snow Load Versus Minimum Snow Load

ASCE 7-22 allows reduced snow load for temporary use if:

The 2022 edition continues to be an integral part of the and other regulations, making it mandatory for project approval. 5. Resources for ASCE 7-22 Implementation

Optimize fastener spacing schedules for siding and roof panels, ensuring higher densities in Zones 2 (edges) and 3 (corners).

: Structures designed to be moved from site to site over a multi-year lifespan, acting as permanent assets at each sequential location.

Let’s apply the criteria to a real-world scenario: