Intent 1:
To limit the probability of:
- ice lens formation beneath the foundations of regularly
occupied buildings, which could lead to the displacement of foundation
elements, or
- the displacement of relatively massive concrete steps
due to frost.
This is to limit the probability of:
- for floors and elements supporting floors, excessive
deflection or damage, which could lead to rough or uneven floor surfaces,
or
- for concrete steps with more than 2 risers, the steps
becoming cracked or sloped, which could lead to rough or uneven surfaces.
This is to limit the probability of persons tripping or
falling, which could lead to harm to persons.