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home » performance characteristics: fire resistance » Building Regulations Approved Document Part B, ‘Fire safety’,
identifies situations where fire resistant doors and door sets –
described as ‘fire doors’ are needed, as well as the restriction
of smoke leakage. It also specifies the level of protection (30 or
60 minutes) and refers to appropriate test standards. Part B
firmly recognises the relevance of UKAS accredited, independent
product conformity certification schemes to ensure that fire
resistance performance levels are actually achieved on-site.
Independent initiatives, such as the CERTIFIRE scheme, are
designed to ensure that installed fire doors perform as intended
and members are subjected to rigorous and comprehensive
appraisal. CERTIFIRE audits are usually undertaken by the
ISO 9000 Inspectorate during manufacture and only CERTIFIRE
approved glazing and seals are used.
Building Regulations concentrate on protecting occupants but there is also protection of the building itself to consider, particularly with historic properties. Fire resistant doors and door sets offer the most effective means of containing fire and smoke, so protecting historic building fabric without the damaging effects of sprinklers.
The Longden range of fire resistant door sets can achieve up to FD60 (60- minutes) fire rating, with smoke control where needed, fully certified and supported by the BWF-CERTIFIRE scheme. Longden has passed its CERTIFIRE audit test with further door set testing carried out enabling larger doors, panels and areas of glazing to be certified as fire resistant.
PanelledBoarded
Rivelin
Sheraton
Chippendale/Copeland
Fire performance to BS 476 Part 22
Non Rated
FD30
FD60
Non Rated
FD30
FD60
Non Rated
FD30
Non Rated
FD30
Suitable for internal use Suitable for external use Thickness
45-58mm
45-58mm
58mm
45-58mm
45-58mm
58mm
45mm
45mm
45mm
45mm
Smoke controlSound reduction
Standard Seals
30RwdB
30RwdB
30RwdB
30RwdB
30RwdB
30RwdB30RwdB*
30RwdB*
Acoustic Seals
38RwdB
37RwdB38RwdB
37RwdB35RwdB*
35RwdB*
* Note: Based on glass performance.
© LONGDEN