- The acoustic automatic door bottom provides excellent performance for acoustic openings
- Independent testing has shown that the STC Series Automatic Door Bottom has "sealed-in-place" type performance

- Meets ANSI Standard S12.60-2002, Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools. Helps school projects earn LEED IEQ School Specific Credits for Enhanced Acoustical Performance

- Smoother action positive seal mechanism. Consist of an aluminum case which surrounds a movable drop-bar seal. The drop-bar seal is actuated by a plunger which contacts the jamb as the door is closing, forcing the drop-bar seal down against the ?oor / threshold.

- Installation is fast and easy because disassembly is not required to change handing: simply ?ip the automatic door bottom and you’ve reversed the hand.

- The drop-bar seal actuation mechanism causes the drop-bar seal to always actuate on the hinge side ?rst. This feature prevents the seal from skidding along the ?oor / threshold while the door is being closed. Door hang up will not occur.

- Recommended gap under door is ½" for optimal acoustic performance max drop is 3/4"

- Internal mechanism allows bar to accommodate slight imperfections in floor materials

- Provided NET length