Batwing Acoustic Seal and Smoke Seal

The Lorient Curved Fin Batwing® acoustic and smoke seal minimises the opening and closing resistance of the door leaf due to its unique, curved fins.

• Flexible elastomeric fin material springs back to original shape to provide ongoing performance and durability in service.
• Symmetrical design ensures fins are always in contact with two surfaces of the door leaf, creating an air chamber to provide excellent acoustic properties.
• Acoustically tested in accordance with BS EN ISO 140-3: 1995, and proven to meet the requirements of Approved Document E . Will achieve a rating of 31dB Rw when tested on a typical FD30 door assembly, in conjunction with an IS8010 si threshold seal - no additional perimeter seal required.
• Effective smoke seal up to 200°C.
• Aggressive self-adhesive backing tested on many surfaces, including MDF.
• Variety of colours to blend with door designs.
• Fully tested for performance and durability under the third party certification schemes CERTIFIRE and British Board of Agrément.
• Tested to 1,000,000 opening and closing cycles on a full size door assembly, without failure