Fire Curtains

fire curtains

Fire Curtains

Fire Curtains helps control the lateral spread of smoke and deadly gases along the underside of an internal ceiling. Fire Curtains are most effective when used as part of a smoke control fire safety system. Smoke reservoirs can be created from which smoke and hot gases can be extracted, or diverted. Fire Curtains may alternatively be implemented to prevent the spread of smoke allowing time for escape.

Fire Curtains are available in wide spans and can be face fixed, soffit fixed or suspended.

Automatic Fire Curtains are more than simply an addition to smoke ventilation systems. Fire Curtains should be considered an important component if you aim to offer a fire safety system that will really save lives.

North: 0161 272 9333   |    South: 0207 873 2390
West Midlands: 0121 285 0239   |    East Midlands: 0115 824 0036
Scotland: 0141 280 2110

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Fire Curtains are a increasingly popular safety component that allows you to stop the spread of lethal gases. Smoke and lethal gases are almost always present as part of a fire and they are invariably the factors responsible for most deaths and serious injury.
Our smoke curtains have been successfully tested and are supplied with a fail safe system that will ensure activation in the event of power failure.

Westwood Fire Curtains can be supplied in unlimited widths by use of an overlap system, with curtains up to 5 metres wide being serviced by single span rollers.

  • Automatic operation
  • Support for server and hatches
  • Custom built to your specification
  • Short lead times
  • Slim, lightweight and easy to install
  • 4hr fire resistance
  • Helps to prevent the passage of smoke and gases
  • 240V operation with battery back-up

Fire Curtains Specification

Coated fibreglass material tested to withstand temperatures of 600 Degrees Centigrade for one hour. The thickness of the Smoke Curtain is approximately 0.75mm.

Bottom Rail and Roller

A bottom rail is attached to the curtain and this rail is designed to stop at ceiling level or into a recess in the box when raised. The curtain coils on to a steel roller mounted on end plate bearings.

Smoke Curtain Operation

Fire Curtains are electrically operated by 240V Tubular Motors and are supplied with a control panel that is connected to the main fire alarm panel for the area. Standard control panel will operate a single motor or alternatively a group panel can be supplied to manage multiple motors within a single smoke compartment. The system requires a 240V single phase fused spur within one metre of the control panel.

Fail safe Smoke Curtain Operation

In the event of power failure, the curtains will automatically close by gravity with a controlled descent. Additionally on receipt of a signal from the fire alarm panel, the curtains will fail safe close by gravity and open automatically when the fire signal ceases.

Smoke Curtain Box

The central roller and coiled up Smoke Curtain is housed in a galvanised metal box, which is fixed to the structure of the building. The box is galvanised as standard and can be polyester powder coated at extra cost.

MAXIMUM SIZES
Unlimited width x 10 metres high.
OPERATING SPEED
Approximately 75mm per second.
WEIGHT
Typically 30kgs per linear metre of width for curtain, box and bottom rail.

North: 0161 272 9333   |    South: 0207 873 2390
West Midlands: 0121 285 0239   |    East Midlands: 0115 824 0036
Scotland: 0141 280 2110

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Please note that we manufacture Single and Twin Skin Lath Fire Rated Roller Shutters tested to Exova Fire and Safety BSEN 1634-1 and providing up to 4 Hours of fire resistance. We integrate with Fire Alarm and Extinguisher systems. The Double Skin Insulated Lath offers additional heat radiation protection.

Fire / Smoke Curtains

Fire Products Structural Recommendation

The structure supporting the rolling door-set must be a fire resistant separating element (to B.S. 476: part 20,21,22: 1987), having a fire resistance greater or equal to that required of the door-set itself. It must be capable of supporting the door-set for the required fire resistance period without compromising the fire resistant performance of the door-set. In addition, consideration must be given to the loads imposed by the various door-set components, i.e. endplates and barrel support brackets. It is recommended, that a critical temperature of 400 °C and steel sections with an Hp/A value below 230m –1 are used for designing fire resistant steel supporting sections.

Where fire/smoke curtains are fixed to masonry supporting elements, the masonry elements must be capable of providing a fire resistance in terms of the insulation, integrity and load bearing capacity criteria of B.S. 476: Part 21: 1987 equal to or greater than the fire resistance rating (integrity) of the rolling shutter assembly.

Fire / smoke curtains fitted to a timber stud partition / steel framed partition are acceptable for up to 60 minutes fire resistance, to the tested opening size of 2750mm wide X 3250 high and above sizes subject to construction..

The surface/sill onto which the shutter closes must be composed of non-combustible material.

All openings must be capable of carrying the weight of the fire / smoke curtains and be equal or greater than the fire resistance of the fire smoke /curtains assembly’s. All fire / smoke curtains weights are indicated on the approval drawings.

Optional Safety Bearings (Fire / Smoke Curtains) – Risk Assessment

Effectively if the sole intended use of the shutter is as a “fire/ smoke curtains” i.e. the shutter will be in the closed position, or, it will remain in the open position and close only under fire conditions then a safety bearing would not be required.

We can provide re-settable safety bearings that have been tested to EN12604,

EN 12605 and comply with the anti fall back regulation.

Please note you have a legal requirement to regularly maintain all fire rated equipment.

Under the regulatory reform (Fire Safety) order 2005 there is an obligation to ensure testing in accordance with BS5588-12.

Fire Alarm Requirements

Tube motor fire shutter – The relay provided by Westwood Security Shutters Ltd requires a normally open volt free signal going closed on fire.

Conventional fire shutter – The solenoid unit requires a 24volt D.C. signal (0.5 amps on activation).

Audio Visual unit – Requires a normally open volt free signal going closed on fire.

Fire Curtains – Require a normally closed signal going open on fire (fail safe system).

 

Fire and Smoke Curtain

 

North: 0161 272 9333 | South: 0207 873 2390 

West Midlands: 0121 285 0239 | East Midlands: 0115 824 0036

Scotland: 0141 280 2110 | South Coast : 01273 358253

 

 

Our Regional Offices …

North:

0161 272 9333 (Head Office)

South:

0207 873 2390

South Coast:

01273 358253

West Midlands:

0121 285 0239

East Midlands:

0115 824 0036

Scotland:

0141 280 2110

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