SECTION 3302 CONSTRUCTION SAFEGUARDS
Maintain, alternate protection, or clear the building....
3302.1 Remodeling and additions. Required exits, existing structural elements, fire protection devices and sanitary safeguards shall be maintained at all times during remodeling, alterations, repairs or additions to any building or structure.
Exceptions:
1. When such required elements or devices are being remodeled, altered or repaired, adequate substitute provisions shall be made.2. When the existing building is not occupied.