A minor storage building is an example of a Low Importance Category building.
Low-human-occupancy farm buildings with an occupant load of 1 person or less per 40 m
The following types of buildings may be classified in the Normal Importance Category: buildings that are equipped with secondary containment of dangerous goods, including, but not limited to, double-walled tanks, dikes of sufficient size to contain a spill, and other means to contain a spill or a blast within the property boundary of the facility and prevent the release of harmful quantities of contaminants to the air, soil, groundwater, surface water or atmosphere, as the case may be. The following buildings may contain sufficient quantities of dangerous goods to be classified in the High Importance Category:
- petrochemical facilities,
- fuel storage facilities (other than those required for post-disaster use), and
- manufacturing or storage facilities containing dangerous goods.
Information on community centres can be found in the Commentary entitled “Limit States Design” in the “Structural Commentaries (User’s Guide – NBC 2020: Part 4 of Division B)”. Before classifying a building as a post-disaster building, Code users should consider the intent of the classification and look beyond the name of the building. For example, a building that is named “ABC Treatment” but is used for emergency care should be considered as a hospital and, as such, classified as a post-disaster building. Conversely, a building named “XYZ Hospital” that is only used for walk-in medical services could be classified as a Normal Importance Category building.