We stock several types of Acoustic Door Seal to reduce noise pollution. Sound reduction levels are compliant with Approved Document E.
A popular acoustic seal is the automatic door bottom seal, which is spring loaded
to lift clear of the floor as soon as the door leaf is opened by a few
millimetres. When the door is closed the seal automatically lowers to the sealing position.
Sound reduction, depending on type, of -37dB or -51B
Cold Smoke rated : Acoustic Rated : Weatherproof
: Vermin Proof : Light Proof : An aid to Wheelchair Access
Face mounted or rebated options. Anodized Satin finish. In stock lengths 330mm, 430mm, 530mm, 630mm, 730mm, 830mm,
930mm, 1030mm, 1130mm, 1230mm.
Tested for durability 200,000 cycles completed without failure for fire
rated smoke doors.
See this page : http://www.draftproofing.com/acoustic-seal-smoke-seal.html