The Aluron AS 75EI system for the construction of single and double-leaf thermally insulated fire doors made its debut on the Polish market last year. This unique product, characterised by many unique features, has just received new versions of the Classification Report for fire resistance in accordance with PN-EN 13501-2:2016-07. Fire-rated technical doors and windows in the EI 30 and EI 60 classes were tested. On the basis of the newly issued documents, Aluron's contractors can already carry out certification with notified bodies.

AS 75EI unique fire door

The uniqueness of the fire door. AS 75EI is manifested in a number of conveniences and innovations introduced by Aluron's experts. The solution is based on the three-chamber profiles of the classic AS 75 window and door system, thus ensuring full compatibility between classless and fire systems. It is equipped with the hitherto unheard-of 'warm' and crack-resistant Perliterm fireproof inserts. They are made from perlite formed by the hydration of cooled volcanic lava. They not only provide an excellent barrier against fire, but also exhibit cooling properties. What is more, placing the inserts in a plastic matrix eliminated the dusting problem typical of gypsum inserts. Another proprietary Aluron solution implemented into the system are fire-retardant intumescent tapes clipped into thermal breaks. Their installation method eliminates the common problem of unsticking the tapes. In the event of fire, the intumescent seals tightly fill the space between the sash and the frame, preventing the penetration of fire. Thanks to their unique composition, intumescent seals do not blow out under the influence of the prevailing pressure difference, as is the case with standard intumescent tapes.

Fanlights, fanlights and new fire door dimensions. AS 75EI

The extension of the classification for AS 75EI opens up new design possibilities for fire door manufacturers. From now on, fire doors on the Aluron system will be able to be fitted with top fanlights with maximum dimensions of 2740 x 1557 mm (W x H) and side fanlights with maximum dimensions of 1592 x 2588 mm (W x H). It has also become possible to use a warm opaque panel in the door. It can be installed in susceptible structures - plasterboard walls and AS 75EI walls. In addition to fire doors, manufacturers will also be able to construct technical windows based on the Aluron system.

The new classification has allowed the height of the AS 75EI door leaf to be increased:

  • up to 2800 mm for doors with fire resistance class EI 30,
  • up to 2500 mm for doors with fire resistance class EI 60.

New mounting and fitting solutions for AS 75EI doors

The new Classification Reports also cover aspects relating to the installation of the AS 75EI door. In addition to the possibility of sealing the construction around the perimeter with polyurethane foam and acrylic, a number of new fittings solutions have been introduced. The new solutions include the GEZE door closer with closing sequence control for double-leaf doors, the GEZE concealed door closer, the GEZE overhead door closer actuator, the WALA roller hinges, the WILKA three-point locks, the cable grommet or the electromagnetic hold-open device.