Is it necessary to isolate the hotel construction?

Use the first floor of the building itself as an isolation layer, that is, leave a layer between the building area and the business area to separate the business area from the building area, and post warning signs at the fire doors of the fire stairs at the junction of the building area and the business area to prevent guests from entering the business area by mistake. And assign a special person to supervise and inspect at the entrance of the staff passage, and the personnel entering and leaving need to register. The elevator hall is enclosed by partitions, and construction will be carried out in the final stage to prevent dust and noise from reaching the business area through the passenger elevator.