As of January 17, 2025, the 2021 Virginia Construction Code (VCC) is now fully in effect. In it, Virginia accelerated the adoption of ASCE 7-22 for structural design loading criteria (wind, seismic, live, snow, etc.), and is one of the first state or local jurisdictions to adopt the new code.
Although there are many differences in the new ASCE 7-22 from its predecessors, one significant change is an increase to the design snow loads. The code writers stated that nationwide building collapses due to snow loads have occurred at percentages high enough to warrant rewriting these provisions. For most buildings, design snow loads are now significantly higher than in previous editions. For example, in a Risk Category III building with a typical roof configuration, the design snow loads have increased over 50 percent compared to earlier provisions.
As a result, new structures in Virginia need to be designed for heavier snow loads than in previous code cycles and in other states. Additionally, existing buildings receiving a modification to roof loading (new RTUs, screen walls, PV panels, etc.) will require that the existing roof be analyzed for the new design snow loads, which are likely much higher than the original design loads.
Over time, as ASCE 7-22 is adopted into later codes (currently scheduled for the 2024 IBC cycle), the issue will be more widely known and accounted for in building planning. However, for new buildings and renovations in the state of Virginia, the new requirements are already in effect.
