My 5-story hospital is in the planning phase for a construction project that will have employees, pts, and visitors exit discharge through a construction project. The 2-hr stairwell only serves floors 1-4. During construction the fire alarm and sprinkler systems will remain fully operational. None of the impacted departments house inpts. For ILSM measures we are recommending a fire watch, additional fire drills with staff education to stress sheltering in place or utilizing an alternative evacuation route. If evacuation is required I am also looking at the feasibility of having higher floors evacuate through a different floor other than 1st floor (impacted floor). My concern is evacuating the 1st floor. I am looking at the feasibility of turning the ground floor of the stairwell into an area of refugee with phone and signage. My question is can I utilize building compartmentalization and have staff and patients evacuate up to the second floor if they need to evacuate?