Fire escapes shall be stairway fire escapes as described in ss. SPS 375.13 to 375.23. On buildings which accommodate more than 50 persons above the second story, such fire escape shall be a "B" type fire escape. Existing stairway fire escapes will be accepted if strongly and properly built and in good condition. Fire ladders will not be accepted as exits.
Wis. Admin. Code Department of Safety and Professional Services SPS 376.02