Acoustic, smoke & fire containment systems

Tel: +44 (0)1626 834252 Email: Help Live Chat

LAS1011 FirtreeĀ® & LAS1016 acoustic seal & smoke seal

A highly effective acoustic seal with smoke barrier performance up to 200°C. LAS1011 Firtree® Carries Certifire certification (CF5179).


  • Head and jambs of single and double leaf doors.  May also be used at the threshold when combined with a threshold plate.

Use with

Min/max gap size

  • LAS1011: 3mm/4mm
  • LAS1016: 5mm/6mm

Please note: The code IS1511 Firtree™ has been superseded with LAS1011 Firtree®   .

LAS1011 LAS1016
LAS1606 bulb seal A bulb type buffer seal with a semi-rigid spine for kerf fitting. Location ... Read more
LAS8001 si Drop Seal An aluminium-based drop seal for acoustic, smoke and energy containment. It featur... Read more
LAS8005 si Drop Seal A slim-line, concealed drop seal featuring a high efficiency mechanism. The seal i... Read more