Frequently Asked Questions

Fire curtains

Fire classification of fire separating elements

EN 13501-2 European Standard define an harmonization procedure for the classification of fire separating elements depending on their fire resistance capacity:

Rating Fire resistance capacity
E

INTEGRITY: Contains flames and hot gases on the side exposed to fire.

Safety E
EI

INTEGRITY: Contains flames and hot gases on the side exposed to fire.

THERMAL INSULATION: Guarantees there is no fire on the side not exposed to fire due to heat transfer.

Safety EW
EW

INTEGRITY: Contains flames and hot gases on the side exposed to fire.

REDUCED THERMAL RADIATION: Limits the transfer of thermal radiation, preventing ignition of materials and damage to persons on the side not exposed to fire.

Safety EW

How to choose fire curtains

After we have established the fire rating the project requires, we can then chose the fire curtains that best adapt to the project taking the following items into account:

  • Maximum dimensions certified according to EXAP EN 15269-11
  • Installation during fire resistance tests according to EN 1634-1 (direct fire resistance capacity of structural components (headbox and lateral guides).
  • Controlled, safe closure by gravity, certified according to EN 14600.
  • Need to include Emergency Function system if somebody is trapped on the fire source.

What do the required certificates mean:

EN 1634-1 FIRE RESISTANCE TEST: specifies the test method to employ in order to determine the fire resistance of fire curtains and the fire compartmentation systems.

EN 13501-2 FIRE RESISTANCE RATING: defines a standardised procedure for rating resistance to fire of fire curtains.

EXAP EN 15269-11 EXTENSION OF APPLICATION OF TEST RESULTS: extending the tested dimensions of fire curtains during the Fire Resistance Test according to standard EN 1634-1 to larger dimensions.

EN 14600 DURABILITY AND AUTOMATIC CLOSING TEST: requirements and methods of necessary compliance to prove the ability of a fire curtain to cover the entire lifecycle of the system.

TECHNICAL ASSESMENT REPORT: This verifies that all the components and specifications of the fire curtains meet the function they are required to, and the complex, non-conventional fire compartmentation system.

APPLUS+ FIRE SAFETY CERTIFICATION: voluntary certificate to ensure that the quality and features of the fire curtains assessed during tests remain constant over time through regular factory controls.

Smoke curtains

How to choose smoke curtains

Smoke curtains are used in conjunction with natural or mechanical smoke exhausting systems in order to control the temperature of the smoke produced during a fire, and to exhaust it to the outside without it affecting the safety of people and consequently allow evacuation.

The principal objective of these systems is to contain and channel smoke in the event of fire in a specific area, avoiding it spreading throughout the building and thus creating several smoke deposits.

Since it belongs to complete smoke and head exhaust ventilation system (SHEV), they are subject to specific regulations in each country or region in charge of sixing the aerodynamic area for smoke evacuation.

Under the directives of these standards the maximum dimensions of these smoke deposits are defined, making it necessary to create two deposits if the dimensions are exceeded, and hence installation of a smoke curtain to divide the space.

Another fundamental aspect is to dimension the drop of the smoke barrier, which directly depends on standard calculations which are made in accordance with the applicable regulations in each case.

A fundamental part of the calculations resides in determining the smoke reservoir in case of fire, which will establish the maximum drop of smoke curtains to be fitted.

For projects in industrial buildings where the fire sector has a considerable height and the aesthetics are not so relevant, fixed smoke curtains tend to be fitted, which visibly hand from the ceiling.

Nevertheless, for projects in commercial buildings where heights are more limited and the aesthetics and architectural factors play a more significant role, automatic smoke curtains are usually fitted, which are permanently rolled up and concealed in the upper headbox, and which are only deployed in case of fire.