Syston Doors - roller shutters, industrial doors, door maintenance and serviceSyston Doors - roller shutters, industrial doors, door maintenance and service
 Syston Doors - supplying and installing doors since 1920

Fire Shutters - Introduction

What is a fire resisting rolling shutter?

A traditional single skin fire resisting rolling shutter looks and operates in a similar way to a standard steel rolling shutter. The physical differences are that materials used are heavier and there are more fixings required. Syston Doors can also provide alternative physical fire shutter products as shown on this website.

Fire Shutter Structural Recommendations

The structure supporting the rolling shutter must be a fire resistant separating element (to BS476, Part 20, 21, 22, 1987), having a fire resistance equal or greater than that required of the rolling shutter itself and must be capable of supporting the rolling shutter for the required fire resistance period without compromising the fire performance of the rolling shutter. Consideration must be given to the loads imposed by the various rolling shutter components, i.e. end plates and the barrel support brackets.

Fixing to Masonry Openings

Opening to be constructed from masonry, reinforced concrete or dense concrete blocks and have a fire resistance equal or greater to that of the door.

Lightweight and hollow blocks are NOT suitable.

All concrete/masonry elements must be designed in accordance with BS5628: Part 3:1985 and have a density of >600kg/m³. Lintels spanning the structural opening should comply with BS8810: Part 1:1997.

Client to ensure that openings are plumb and square and that the structure will accept rawlbolt type fixings without cracking.

Subject to the fire shutter being fitted to a flat surface, gaps of up to 6mm are acceptable (for a distance of 150mm), but if, due to an uneven structural finish, larger gaps are apparent, they must be sealed with a suitable fire retardant material, e.g. plaster, fire retardant mastic seal (non-intumescent). Syston Doors do not include this sealing.

Fixing to Steel Openings

Where fire resisting rolling shutters are fitted to steel the steel must be insulated and thermal bridging effects considered where insulation has been breached.

It is recommended that a critical steel temperature of 400°C and steel sections with an Hp/A below 230m-1 are used for designing fire resisting steel supporting structures.

Fixing to Timber Partitions

Fire resisting rolling shutters can be fixed to non-loadbearing timber framed or steel framed partitions up to 2750mm wide x 3250mm high, (maximum area 10m²), for up to 60 minutes under cover of BRE test certificate FG 7941 N. The opening must be capable of carrying the weight of the shutter and be equal or greater than the fire resistance of the rolling shutter assembly.

It is most important that the Contractor adheres to the opening construction details, as these are also covered by the assessment and as such become the CONTRACTOR’S RESPONSIBILITY.

Fire testing

We do not as standard include for a return journey involving a fire test after the original installation. We can include this at extra cost.

Maintenance

Please note that it is a requirement under Regulatory Reform (Fire Safety) Order 2005, that fire resisting Rolling Shutters are tested every six months. Access should therefore be allowed to the mechanism to enable this to be carried out. Syston Doors can offer routine testing and maintenance contracts on application. If no contract is entered into we cannot take any responsibility for the working condition of the shutters after the guarantee period.

Fire Shutters over fire exits and escape routes

As required under Appendix B of the Building Regulations Approved Document B, fire resisting rolling shutters across a means of escape should only be released by a heat sensor, such as a fusible link or electric heat detector, in the immediate vicinity of the rolling shutter. Closure of rolling shutters in such locations should not be initiated by smoke detectors or a fire alarm system, UNLESS the rolling shutter is also intended to partially descend to form part of a boundary to a smoke reservoir.

Note

Removable guides, bottom rubber seals, safety edges and wicket gates cannot be fitted to fire shutters.


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