Sentence 9.8.2.2.(3)

Intent 1:

To limit the probability of insufficient clear height over stairs in single dwelling units or houses with secondary suites (1.95 m), where occupants are likely to be intimately familiar with their surroundings.

This is to limit the probability of:

• persons accidentally contacting the ceiling with their head, or
• persons accidentally contacting the ceiling with their head in an emergency, which could lead to persons falling, which could lead to delays in the evacuation or movement of persons to a safe place.

This is to limit the probability of harm to persons.