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Demolition of masonry buildings with wooden floors shall comply with the following requirements:
  1. Demolition of walls and partitions shall proceed in a systematic manner, and all work above each tier of floor beams shall be completed before any of the supporting structural members are disturbed.
  2. Sections of masonry walls shall not be loosened or permitted to fall in such masses as to affect the carrying capacity of floors or the stability of structural supports.
  3. No section of masonry wall with a height to thickness ratio greater than 22 shall be permitted to stand without the wall being braced. Such bracing shall be designed by a registered design professional.
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