Car Park Extract
Car Park extract should be tested for Type A (fire outside) and Type B (fire inside) to BS476- part 24 for a specified time for Stability, Integrity and Insulation (if required). The Building Regulations specify what is required to maintain safe conditions, in particular Approved Document B and Approved Document F
- Mechanical ventilation must provide 6 air-changes per hour in normal conditions.
- For smoke clearance 10 air changes per hour is required.
The regulations for smoke clearance state that the system should have an extract facility which is split into two parts, each part capable of providing 50% of the required duty and extracting from both high and low level
The use of a coated or boarded systems in Car Parks can lead to their fire rating being compromised if the coating is damaged.
Air Extraction must be maintained and Fire Dampers must not be used.
|System Description||Material||Stability & Integrity||Insulation|
|Car Park Extract||Galvanised Mild Steel||Up to 4 Hours||Up to 2 Hours*|
*Insulation values are obtained through the application of specific insulation
Trusted by the industry
Our professional approach and continual investment in the training of our staff, technology systems and manufacturing plant ensure you receive the very best product and service. We are ISO 9001:2015 compliant and Investors in People accredited to 2020. Manufacturing to the highest quality control standards. With our internal factory production control (FPC) being maintained by our own skilled and experienced sheet metal fabricators, which is regularly audited by BRE Global and Applus Laboratories.
Considerate to the environment
Non-Coated galvanised fire rated ductwork has significant commercial and environmental savings over systems using intumescent or flame-retardant coatings that require energy and chemicals to degrease, etch, prime, paint and dry. Our systems also alleviate the inherent problems of damaging these coatings during logistics, assembly and installation, which compromises the fire resistance of a secondary coated system.
Supply Only Non Coated Fire Rated Ductwork:
- Rectangular duct up to 3000mm square
- Circular duct up to 1250mm diameter
- Special construction duct up to 8m longest side
- Horizontal and vertical orientations
- Available in Galvanised, Mild & Stainless Steel
- Conventional or Fully Welded construction
- Tested for ‘Fire Outside’ & ‘Fire Inside’ scenarios
- Fire rated Access Doors
- Fire rated Silencers
- Bespoke design for ductwork support systems
All fire rated ducting is manufactured to the CASWELL FIRESAFE® specification. Email us now to obtain a quote for your requirements.
The system was developed and tested in the early 2000’s in accordance with BS476 Part 24 (1987). In recent years further, development and testing in accordance with EN1366 Part 1 (2013) to meet European legalisation including CE marking.
The product is tested to BS 476-24 (1987) and EN 1366-1 (2013) for up to 4 hours stability and integrity and up to 4 hours insulation (fire outside duct) and 2 hours insulation (fire inside duct).
Email us now to obtain a quote for your requirements.