What type of flooring is prohibited in repair garages for motor-vehicle-related occupancies?

In the context of repair garages for motor-vehicle-related occupancies, concrete flooring is typically required rather than prohibited. The correct answer involves flooring types that are prone to issues such as wear, fire hazards, or contamination. Wood flooring, for instance, is prohibited due to its flammability and potential for absorbing hazardous materials, which can be a significant safety concern. Such characteristics make wood a poor choice in environments where fuel, oils, and other chemicals may be present and could lead to dangerous conditions.

Tile flooring can also present potential risks, depending on the type, but it is not inherently prohibited. Additionally, asphalt flooring is sometimes used in garage settings due to its durability and resistance to chemicals, which can make it suitable in specific situations. Therefore, the flooring type that raises concerns in repair garages generally focuses on the materials that compound safety issues, with wood being the suitable response in this scenario.