The Model 4000 fire curtain is the perfect solution for vertically deploying perimeter curtain installations as it does not require corner support posts. This particular model of smoke and fire curtain can shield staircases or escalators from smoke and flames, or provide a reservoir for smoke on the upper floors of an atrium or other open space.
While the M4000 does not provide gaps for egress, it can be an effective supplement to existing mechanical smoke and fire containment systems or additional fire curtains. This is a powerful tool for architects designing new buildings, and the cornerless design makes it easy to incorporate the M4000 into older buildings that must be updated to comply with modern fire safety codes.
This particular install allowed Facebook to keep this building very open and modern without sacrificing safety. The addition of the M4000 enabled the atrium to be secured in the event of an emergency but to stow away out of sight when not necessary.