The ALT FR76 doors are manufactured with the use of special five-chamber profile, and are indented to use as a fire resistant system:

• one/two leaf exterior opening doors with EIW30 and EIW60 fire endurance;
  
  
• all types of partitions with EIW45 fire endurance;


• one/two leaf doors with perimeter locking and automatic threshold ™ EIW30 and EIW60 fire endurance.

Innovative five-chamber profiles consisting of 3 aluminium ™parts™ and connected with two pairs of thermal breaks have been designed specially for ALT FR76 system. The mounting depth of profiles is 76 mm. The possibility to install the infill units from 10 up to 48 mm allows to achieve high thermal and soundproof characteristics.