Floor Coverings,

Floors are subject to wear and tear. Higher-quality finish flooring can often be cost effective because
it will likely last longer than less expensive flooring. The sub-flooring must be adequate to support the finished flooring, especially ceramic tile. Planning the type of finished flooring to be used can minimize elevation differences (tripping hazards) between different flooring materials.

Source : Canada Mortgage and Housing Corporation (CMHC)