Deployable strip for multi-segment retractable curtain

A fastener overlay assembly arranged at an interface between a first curtain segment and a second curtain segment of a retractable curtain, positioned at an opening in a structure, the curtain segments having leading edges affixed to a bottom bar and configured to extend between opened and closed positions by winding on and unwinding from a barrel assembly, each curtain segment being connectable to the other curtain segment adjacent thereto by a fastener at respective adjacent edges of each curtain segment during unwinding, the overlay assembly comprising:

• an overlay strip having a leading edge proximate a leading edge of at least one of the first and second curtain segments;
• and
• a retractable overlay collector roller attached to a first end of the overlay strip and configured to allow the overlay strip to wind on and unwind from a collector roller synchronously with the winding and unwinding of the first and second curtain segments with respect to the barrel assembly,
• wherein the retractable fastener overlay strip is arranged, in its extended position, in front of or behind the fastener that connects the first and second curtain segments.