Flameshield Fireduct - We Manufacture and Supply Flameshield Fireduct EN
EN 1366 is the new pan European standard that will replace BS 476 Part 24. Our innovative
Flameshield Fireduct EN ductwork system is the first and leading non-coated
ductwork system currently available in the UK to achieve full compliance to all parts of the
new EN 1366 Parts 1 & 8 standard.
In addition to being certified under EN 1366 Flameshield Fireduct EN will shortly be a CE marked product as Kent Ductwork and Flameshield Products Limited are fully compliant in the following areas.
- Full ISO 9001:2012 certification.
- Full Factory Production Controls in place.
- Full Site Installation Control schemes in place.
Though you can still fit ductwork that complies with the BS standard, in order to future proof your building and construction projects, we recommend specifying our Flameshield Fireduct EN ductwork system for your critical ventilation and smoke extraction systems.
EN 1366 Parts 1 & 8 compliance requires the following
There are three different test scenarios, duct A, duct B and duct C. Unlike the test standard for BS 476 Part 24 the EN 1366 standards require tests to be passed for larger sizes of ductwork in different orientations (vertical as well as horizontal) and with different shapes rectangular, circular or flat oval ducts, all are required to be tested.
EN 1366 Part 1 Covers with Ventilation Ductwork
A standard duct A test is carried out incorporating a duct size of 1000mm x 500mm or 800mm diameter (whether horizontal or vertical). A successful test for both of these shapes enables ducts up to either 1250mm x 1000mm or 1000mm diameter to be offered in accordance with the test standard.
A standard duct B test is carried out incorporating a duct size of 1000mm x 250mm or 630mm diameter (whether horizontal or vertical). A successful test for both of these shapes enables ducts up to either 1250mm x 1000mm or 1000mm diameter to be offered in accordance with the test standard.
A duct A test (fire exposure from outside to inside) MUST meet a leakage criteria (not required in the BS 476 Part 24 test standards) before being able to be tested in accordance with the Part 8 (the smoke extraction) standard.
Any ducts with a size in excess of either 1250mm x 1000mm or 1000mm diameter MUST be tested in accordance with the EN 1366 Part EXAP (Extended Field of Application BS EN 15882-1:2011) up to a maximum duct size of 2500mm x 1250mm.
The conditions of these tests are that:
- Both horizontal and vertical applications MUST be tested.
- ALL shapes of ductwork MUST be tested.
- Ducts with an external application of insulation MUST be tested for the different time periods of protection required.
EN 1366 Part 8 for Smoke Extraction Ductwork
The rectangular duct size is tested at 1000mm x 250mm and MUST be insulated. A successful tested solution for a horizontal duct will also be accepted for ducts in a vertical orientation. A successful test enables ducts up to 1250mm x 1000mm or 560mm diameter to be offered in accordance with the test standard.
Any ducts sized in excess of 1250mm x 1000mm MUST be tested in accordance with the EN 1366 Part EXAP (Extended Field of Application) up to a maximum duct size of 2500mm x 1250mm however, the EXAP test standard for smoke ducts has not currently been published therefore larger sized smoke extract ducts CANNOT be tested at this time.
Other Ductwork systems just don’t come close to Flameshield Fireduct EN
The EN standard tests are more extensive and onerous than the tests required to achieve the BS 478 Part 24 standard as new specific sets of criteria are required. As an example, Duct C tests (smoke extract) must retain at least 90% of its cross sectional area as compared to 75% in a similar BS 476 Part 24 test.
The Flameshield product achieves this and more; in fact, other ductworks would be required to pass a minimum of at the very least 20 EN tests to be even remotely comparable to the Flameshield product.
To be safe and certain there is only one choice - Flameshield Fireduct EN.