Testing & Accreditations

Exova Warringtonfire the NAMAS/UKAS Accredited Laboratory based in the UK, have tested and passed Caswell Firesafe non-coated ductwork to BS 476 Part 24:1987 Method for determination of the fire resistance of ventilation ducts.

The Caswell Firesafe non-coated fire resisting ductwork system manufactured by Firetrace Ltd is certified by the LPCB (Loss Prevention Certification Board) for up to 4 hours stability and integrity and up to 2 hours insulation to BS 476-24 (1987). LPCB CERTIFICATION gives the end-user client the added reassurance of a fire-rated system that is recognised by insurers.

Manufactured within an ISO9001 accredited purpose built factory, which is regularly audited by LPCB in accordance with the requirements of LPCB:FPC (Factory Production Controls). These controls ensure that every item of ductwork is manufactured to the exacting standards required by Firesafe Fire Rated Ductwork Ltd and compliance with the specification of the tested product.

LPCB, Caswell Firesafe, and ASFP logos

The table below confirms the system capabilities which apply equally to horizontal and vertical (riser) ductwork and Fire Outside (type test A) and Fire Inside (type test B)

System Description Material Stability & Integrity Insulation
Ventilation/Smoke Extract/ Pressurisation Galvanised Mild Steel Up to 4 Hours Up to 2 Hours*
Ventilation/Smoke Extract/ Pressurisation Stainless Steel Up to 4 Hours Up to 2 Hours*
Kitchen Extract Galvanised Or Stainless Up to 4 Hours Up to 60 mins*
Kitchen Extract Mild Steel (Fully Welded) Up to 4 Hours Up to 60 mins*
Kitchen Extract Stainless Steel (Fully Welded) Up to 4 Hours Up to 60 mins*

*Insulation values are obtained through the application of specific insulation

All systems are manufactured to satisfy the requirements of recognised ductwork specifications including DW 144 and DW 172

See our listing on Red Book Live

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LPS-SD198(appendix B12)
BS476 part 24 1987
Cert - LPCB Ref 1345a

firesafe firesafe FSB ADCAS Caswell Fireafe

ISOQARCert No. 12816
ISO 9001

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