variance of 3rd floor residential sprinkler rule

[Cobble Court Eng]

A client of mine wants to add a 3rd floor to his house. he wants to avoid the overhead sprinkler rule. What about if we have 2 staircases exiting the 3rd floor? this provides us 2 separate means of exit.

 

[Cobble Court Eng]

A client of mine wants to add a 3rd floor to his house. he wants to avoid the overhead sprinkler rule. What about if we have 2 staircases exiting the 3rd floor? this provides us 2 separate means of exit.

Do 1 of these need to be outside?

 

[Mr. Inspector]

must be a NY thing.