Abstract: An improved suspended ceiling of the type having ceiling panels resting on a support framework employs shape-memorizing metal alloy members to hold the panel in place on the framework in the event of fire and causing the panels to rest freely on the framework at normal temperatures to enable the panels to be easily removed or pushed up for access to the space above the panels. At a critical temperature, the memory members revert to their memorized shape and in so doing cause retention members to move and extend over the panels to hold those panels in place.