# Commission Decision of 21 August 2001 implementing Council Directive 89/106/EEC as regards the classification of the external fire performance of roofs and roof coverings (notified under document number C(2001) 2474) (Text with EEA relevance) (2001/671/EC), Division: SYMBOLS

Extent: E+W+S+N.I.

The classifications according to the four test methods are identified as follows:
ENV 1187:2002 test 1: XROOF(t1), where t1 = Burning brand alone,
ENV 1187:2002 test 2: XROOF(t2), where t2 = Burning brand + wind,
ENV 1187:2002 test 3: XROOF(t3), where t3 = Burning brand + wind + radiation,
ENV 1187:2002 test 4: X ROOF (t4) where t4 = burning brand + wind + supplementary radiant heat.
TE critical external fire spread time
TP critical time to fire penetration
Table
CLASSES OF EXTERNAL FIRE PERFORMANCE FOR ROOFS/ROOF COVERINGS
The number of classes is still under review and will be amended as soon as the necessary information is available.
* Attention shall be drawn to dripping from the underside of the specimen, any mechanical failure and any development of holes by adding a suffix “x” to the designation to denote that one or more of these took place during the test. In addition, depending upon inclination of the product during the test, the letters EXT.F will be added to indicate “flat or horizontal” and EXT.S will be added to indicate “inclined”.
Test method
Class
Classification criteria
CR1187:2001 test 1
BROOF (t1)
All of the following conditions must be satisfied:
external and internal fire spread upwards < 0,700 m,
external and internal fire spread downwards < 0,600 m,
maximum burned length external and internal < 0,800 m,
no burning material (droplets or debris) falling from exposed side,
no burning/glowing particles penetrating the roof construction,
no single through opening > 2,5 × 10–5 m2,
sum of all through openings < 4,5 × 10–3 m2,
lateral fire spread does not reach the edges of the measurement zone,
no internal glowing combustion,
maximum redius of fire spread on ‘horizontal’, roofs, external and internal < 0,200 m.
FROOF (t1)
No performance determined
CR1187:2001 test 2
BROOF (t2)
For both test series at 2 m/s and 4 m/s wind speed:
mean damaged length of the roofing and underlay ≤ 0,550 m,
maximum damaged length of the roofing and underlay ≤ 0,800 m,
FROOF (t2)
No performance determined
CR1187:2001 test 3
BROOF (t3)
TE ≥ 30 min and TP ≥ 30 min
CROOF (t3)
TE ≥ 10 min and TP ≥ 15 min
DROOF (t3)
TP> 5 min
FROOF (t3)
No performance determined
ENV 1187:2002 test 4
B ROOF (t4)
All of the following conditions must be satisfied:
No penetration of roof system within 1 hour
In the preliminary test, after withdrawal of test flame, specimens burn for < 5 minutes
In the preliminary test, flame spread < 0.38 m across the region of burning
C ROOF (t4)
All of the following conditions must be satisfied:
No penetration of roof system within 30 minutes
In the preliminary test, after withdrawal of test flame, specimens burn for < 5 minutes
In the preliminary test, flame spread < 0.38 m across the region of burning
D ROOF (t4)
All of the following conditions must be satisfied:
Roof system is penetrated within 30 minutes but is not penetrated in the preliminary flame test
In the preliminary test, after withdrawal of test flame, specimens burn for < 5 minutes
In the preliminary test, flame spread < 0.38 m across the region of burning
E ROOF (t4)
All of the following conditions must be satisfied:
Roof system is penetrated within 30 minutes but is not penetrated in the preliminary flame test
Flame spread is not controlled
F ROOF (t4)
No performance determined

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Source: https://www.legislation.gov.uk/eudn/2001/671/annex/division/2 (the official version)
Page: https://openlegislation.uk/eu-decision-2001-671/annex/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.