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Flameshield 8524 Overlapping Vertical Active Fire Curtain Barrier – BS 8524-1 & BS 8524-2 Tested - Vertical Active Fire Curtain

Verified by manufacturer 1 day ago

8524 - No Smoke Seals

A1S Group Variant:

Vertical overlapping active fire curtain barrier providing 120 minutes fire integrity and up to 74 minutes radiation performance, tested to BS 8524-1 and installed to BS 8524-2.

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+44 (0)1204 383839 Website

Application

Vertical overlapping active fire curtain barrier suitable for applications requiring BS 8524-compliant fire compartmentation across large or irregular openings, including protected means of escape, atria, lobbies, reception areas, corridor separation, openings in fire-resisting walls, boundary protection, escalators, stairwells, lift shafts and lift lobbies.

Regularly specified within hospitals and healthcare facilities, schools and universities, hotels, high-rise buildings, offices, retail environments, stadia, museums and galleries, as well as transport infrastructure such as train stations and airports. Also appropriate for warehouses, factories, nurseries, shopping centres, restaurants, and defence or custodial environments where large-span fire containment is required.

The Flameshield 8524 Overlapping Fire Curtain is designed for multiple applications such:

  • Protected means of escape
  • Atrium
  • Lobbies
  • Receptions
  • Openings in walls
  • Egress
  • Corridor separation
  • Boundary protection
  • Escalators
  • Stairs
  • Lifts and lift lobbies
  • Hospitals
  • Schools
  • Hotels
  • High Buildings
  • Offices
  • Military sites
  • Retail
  • Stadia
  • Museums and galleries
  • Prisons
  • Train stations
  • Airports
  • Warehouses
  • Factories
  • Nurseries
  • Shopping centres
  • Restaurants

Description

The Flameshield 8524 Overlapping Vertical Active Fire Curtain Barrier is an electrically operated, gravity fail-safe fire curtain system designed to provide BS 8524-compliant fire compartmentation across wide openings using overlapping curtain leaves. The system delivers 120 minutes fire integrity and up to 74 minutes radiation performance, supporting occupant tenability and protected means of escape strategies in large or complex layouts.

The barrier assembly comprises a carbon steel barrel and integrated 24 V d.c. electric motor, incorporating a high-performance flexible fire curtain fabric capable of withstanding temperatures in excess of 1000°C. Barrel deflection performance complies with BS 6323-5, ensuring stability and reliable deployment. A two-section bottom rail provides controlled descent, consistent tension and dependable gravity fail-safe operation in the event of power or system failure.

The overlapping configuration allows multiple curtain leaves to deploy in sequence, forming a continuous fire-resisting barrier where single-span solutions are impractical. A two-stage closing operation with optional timed delay supports phased evacuation strategies and safe building management.

Designed to complement architectural intent, the Flameshield 8524 Overlapping curtain can be concealed above ceiling lines, with end plates, guides and head boxes available in specialist RAL finishes, enabling seamless integration with interior design schemes.

A comprehensive suite of ancillary safety devices is available, including egress switches, access switches, obstruction detection, and heat and smoke activation, all fully tested to Annex H of BS 8524-1. Optional audible and visual warning systems, including voice warning devices, can be specified to enhance occupant awareness during deployment.

The system is fully compliance-tested, incorporates low-maintenance components, and is capable of full reset following fire testing without the need for specialist engineer attendance.

Independent testing and approval has been carried out by Warrington Fire Research Centre and Exova, with fire and radiation performance tested to BS EN 1634-1 in accordance with BS 8524-1. Manufacture aligns with Warrington Test WF 366190 and relevant sections of BS EN 16034, ensuring consistent quality and regulatory confidence.

Features and benefits:

  • Gravity fail safe closes without mains power.
  • Provides smoke control.
  • Lightweight slimline compact design.
  • Two stage closing operation.
  • Compliance tested to maintain building fire safety and integrity in accordance with BS 8524-1 and installed in accordance with BS 8524-2.
  • Can be hidden neatly above the ceiling line to assist the building design and aesthetics.
  • Voice warning devices available.
  • Fully resets after fire test without the need for engineers to attend.
  • Low maintenance costs.
  • Timed delay closing.

General information

Color

Other

Finish

Powder-coated

Material

Carbon steel

Shape

Rectangle

Length

Bespoke

Width

Bespoke

Height

Bespoke

Warranty description

One year

Uniclass

Pr_25_80_79_94 Vertical active fire curtain barriersPrimary

CAWS

L20/610 Roller shutters/ curtains

SKU Code

FS 8524 OV

Specification data - Vertical active fire curtain barriers

Classification data

Standards

To BS 8524-1, BS EN 1634-1, BS 476-6 and -7, BS EN 12605, BS EN 14600, BS EN 13501-2 and BS EN 16034.

Barrier assemblies

To BS 8524-1.

Test standards

Vertical, horizontal and angled to BS EN 1634-1.

Third-party certification

Warrington Fire Report 367279.

Size

-

Manufacturer guidance

Maximum size (w x h): 8000 x 8000 mm. (32 m²). Insert requirements.

Performance

-

Smoke containment

No Smoke Seals.

Fire resistance

60 minutes.
120 minutes.

Accessories

Partial Drop.

Guidance for specification option:

The barrier shall have the facility to deploy to a pre-determined position to allow escape and initial smoke containment. The partial close position shall be site adjustable with an adjustable wait time in the partial close position of up to 10 minutes

Emergency Retract.

Guidance for specification option:

The barrier can have an emergency retract interface for escape and emergency access. The interface shall be volt free, normally open (close on operation). The signal required shall be momentary with a site adjustable retract time. The emergency retract facility shall be operational as long as there is primary / secondary power available.

BMS Interface.

Guidance for specification option:

The barrier has volt free c/o contacts to indicate whether the barrier is fully open or fully closed.

Obstruction Beam Detection Device.

Guidance for specification option:

An obstruction beam detection device, with on site adjustable time module between 5 minutes and 10 minutes, shall sound in the event of an obstruction being present as along as mains power is available. The obstruction device shall not stop the barrier from deploying it to its active position. Where sensory equipment for detecting obstructions to barrier assemblies is provided they shall conform with BS 8524-1 (5.8.5).

Audio / Visual / Spoken Warning Unit.

Guidance for specification option:

The barrier has a volt free contact which indicates an active c/o (change over) contact which indicates an active alarm signal. An Audio / Visual / Spoken warning unit can be interfaced with this using power supplied by the primary / secondary source or via an external source.

Radiation

74 minutes at 15 kW/m².

Fabric

Fire curtains are formed from a fire rated fabric 0.54 mm thick stainless steel wire reinforced, with a specially formulated aluminum pigmented and fire retardant polymer which provides a heat reflecting surface as well as other properties for smoke and fire.

Barrel

Fire curtain barrels are manufactured from carbon steel tube, tube size dependent on the overall size of the unit and deflection calculated to conform to British Standards.

Sustainability data

Contains Red List materials

No

Country of material origin

United Kingdom

Country of product manufacture

United Kingdom

Manufacturing plant location

Material

Carbon steel

Expected Life

Ten year

Guidance for specification option:

Lifetime under BS 8524-2.

Manufacturer guidance

Lifetime under BS 8524-2.

BIM objects

BOS

NBS BIM Object Standard

This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.

Find out more about the NBS BIM Object Standard.

Platform Compatible Version
Revit
-

1

IFC
-

1

Literature

A1S Group Specification Sheet: Flameshield 8524 OV

A1S Group Specification Sheet: Flameshield 8524 OV

A1S Group Drawing (Face Fit) Flameshield 8524 OV

A1S Group Drawing (Face Fit) Flameshield 8524 OV

A1S Group Drawing (Reveal Fit) Flameshield 8524 OV

A1S Group Drawing (Reveal Fit) Flameshield 8524 OV

CPD materials

The Functionality, Design and Compliance of Fire and Smoke Curtains​

The Functionality, Design and Compliance of Fire and Smoke Curtains​

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