EN   EN 
 
 
 EUROPEAN  
COMMISSION   
Brussels, XXX   
[…](2023) XXX  draft  
ANNEX  
 
ANNEX  
to the  
Commission Delegated Regulation (EU) .../...of XXX  
supplementing Regulation (EU) No 305/2011 of the European Parliament and of the 
Council by establishing classes of performance in relation to the resistance to fire of 
construction products   
 
   
EN 1  EN ANNEX  
A. SYMBOLS  
For the purposes of this Annex the following symbols apply:  
   
R Load -bearing capacity  
E Integrity  
I Insulation  
W Radiation  
M Mechanical action  
C Self-closing  
S Smoke leakage (in context of ventilation systems) / Smoke control (in 
context of doors)  
P Continuity of power and signal supply under the standard time 
temperature curve  
PH Continuity of power and signal supply under constant temperature  
G / O  Soot fire resistance  
K Fire protection ability  
T Temperature class expressed in maximum gas temperature in °C 
(operating temperature)  
 D Stability duration under constant temperature  
DH Stability duration under the standard time -temperature curve  
F Functionality of powered smoke and heat ventilators  
B Functionality of natural smoke and heat ventilators   
EN 2  EN B. Classes of performance in relation to the resistance to fire of  construction products  
General  
The relevant definitions, tests and performance criteria are fully described or referenced in the European resistance to fire  classification standards, 
harmonised European product standards, European testing standards, and relevant parts of Eurocodes.  
If for asymmetrical elements the declared class of the element is only valid from one side, the class shall be accompanied by  this information.  
The following classes of performance are expressed in minutes unless otherwise spec ified.  
1. Load -bearing elements without a fire -separating function  
Table 1  
Applies to  Walls, floors, roofs, beams, columns, balconies, walkways, stairs  
R  15 20 30 45 60 90 120 180 240 360 
2. Load -bearing elements with a fire -separating function  
Table 2.1 
Applies to  Walls  
RE  15 20 30 45 60 90 120 180 240 360 
REI  15 20 30 45 60 90 120 180 240 360 
REI-M  15 20 30 45 60 90 120 180 240 360 
REW   15 20 30 45 60 90 120 180 240 360 
Table 2.2  
Applies to  Floors, roofs, roof windows, rooflights and shutters  
RE  15 20 30 45 60 90 120 180 240 360 
REI  15 20 30 45 60 90 120 180 240 360 
Table 2.3  
Applies to  Raised floors  
RE  15 20 30 45 60 90 120 180 240 360 
REI  15 20 30 45 60 90 120 180 240 360 
Notes  The classification shall be made specific depending on  the exposure. The absence of the designation letter “r” 
refers to standard temperature/time curve exposure (full fire resistance) whereas its presence refers to the 
constant temperature attack of 500 °C (reduced exposure).  
Raised floors satisfying the sta ndard temperature/time curve exposure for a given time are considered to 
satisfy the reduced exposure conditions for at least the same period.  
3. Products and systems for protecting load -bearing elements  
Table 3.1  
Applies to  Ceilings with no independent fire resistance  
Assessment of the contribution to the fire resistance of structural members: Expressed in terms of classification of the load -bearing element 
being protected.  
Notes  If satisfying the criteria with regard to the 'semi -natural' fire, the symbol 'sn' is added to the classification.   
EN 3  EN Table 3.2  
Applies to  Fire protective coatings (reactive), boards (slabs and mats), renderings (sprays), claddings and screens  
Assessment of the contribution to the fire resistance of structural members: Expressed in terms of classification of the load -bearing element 
being protected.  
Notes  For coatings, if satisfying the criteria with regard to the ‘slow heating’ curve, the symbol 'IncSlow' is added to 
the classification.  
4. Non -loadbearing elements or products with a fire -separating function  
Table 4.1  
Applies to  Partitions (including partitions incorporating uninsulated portions) and fixed windows  
E  15 20 30 45 60 90 120 180 240 360 
EI  15 20 30 45 60 90 120 180 240 360 
EI-M  15 20 30 45 60 90 120 180 240 360 
EW  15 20 30 45 60 90 120 180 240 360 
Table  4.2 
Applies to  Unloaded roofs  
E  15 20 30 45 60 90 120 180 240 360 
EI  15 20 30 45 60 90 120 180 240 360 
EW  15 20 30 45 60 90 120 180 240 360 
Table  4.3 
Applies to Cavity barriers  
E  15 20 30 45 60 90 120 180 240 360 
EI  15 20 30 45 60 90 120 180 240 360 
Notes  The classification is completed by a separate indication, if satisfying the sudden exposure test for cavity 
barriers.  
Table  4.4 
Applies to  Ceilings with  independent fire resistance  
EI  15 20 30 45 60 90 120 180 240 360 
Notes  The classification is completed by indicating how the element has been tested, and refers to a fire from above 
'(a→b)' or from below '(b→a)' or both '(a ↔b)'.   
Table  4.5 
Applies to Facades (curtain walls) and external walls (including glazed elements)  
E  15 20 30 45 60 90 120 180 240 360 
EI  15 20 30 45 60 90 120 180 240 360 
EW  15 20 30 45 60 90 120 180 240 360  
EN 4  EN Notes  The classification is completed by '(i→o)'; '(o→i)'; or '(i↔o)' to indicate whether the element has been tested 
and fulfils the requirements from the inside only; from the outside only; or from both sides respectively.  
The addition of the suffix ‘ef’ indicates that the test was performed on the basis of the ext ernal fire curve.  
Table  4.6 
Applies to  Non-mechanical fire barriers for ventilation ductwork  
E  15 20 30 45 60 90 120 180 240 360 
EI  15 20 30 45 60 90 120 180 240 360 
Notes  In addition to meeting the requirements related to integrity (E), the non-mechanical fire barrier shall also:  
a) be tested from both sides, and  
b) achieve 360 m3/(m2h) maximum leakage rate with reference to nominal duct cross -sectional area during 
the fire test.  
There is no S classification for this product, as it has no ambient temperature smoke performance.  
“ve” and/or “ho” show the product is intended to be used for vertical and/or horizontal use.  
Table  4.7 
Applies to  Penetration seals  
E  15 20 30 45 60 90 120 180 240 360 
EI  15 20 30 45 60 90 120 180 240 360 
Notes  The classification is expressed in terms of classification of the supporting construction with fire -separating 
function being penetrated.  
The classification of pipe penetration seals is completed by the addition of “U/U”, “C/U”, “U/C”, or “C/C” 
depending on the tested pipe end configuration inside the furnace and outside the furnace respectively (U - 
uncapped; C – capped).  
Table  4.8 
Applies to  Combined penetration seals  
E  15 20 30 45 60 90 120 180 240 360 
EI  15 20 30 45 60 90 120 180 240 360 
Notes  The classification is expressed in terms of classification of the supporting construction with fire -separating 
function being penetrated.  
The classification shall be completed with the additional relevant classifications of combined elements as 
given in this annex.  
Table  4.9 
Applies to  Linear joint seals  
E  15 20 30 45 60 90 120 180 240 360 
EI  15 20 30 45 60 90 120 180 240 360 
Notes  The classification is completed by the addition of the symbols  
 “H”, or “V”, or “T” indicating that the classification is valid for the corresponding orientation 
(Horizontal supporting construction; Vertical supporting construction - vertical joint; Vertical 
supporting construction - horizontal joint respectively),  
 “M”, or “F”, or “B” indicating the type of splices (Manufactured; Field; or Both manufactured and field 
respectively),  
 “X”; or ”Mxxx” indicating the movement capability (No movement; or Movement induced (in %)  
EN 5  EN respectively), including the subscript “lat” or  “shear” indicating the induced movement, and  
 “W w1 to w2” indicating the joint width range (in mm) for which the classification criterion is satisfied 
(w1 being the lower width and w2 the higher width limit).  
Table  4.10 
Applies to  Fire resisting doorsets, openable windows (in walls and roofs), openable rooflights and shutters 
(including those that incorporate glazing, closing devices and other building hardware)  
E  15 20 30 45 60 90 120 180 240 360 
EI  15 20 30 45 60 90 120 180 240 360 
EW  15 20 30 45 60 90 120 180 240 360 
C The C classification may be declared where a self -closing device is fitted and the doorset was not manually 
closed for the purpose of the test.  
Optionally, for durability of self -closing device, the C classification may be  complemented by the digits 0 to 5 
according to the intended use where cycle testing has been carried out.  
Notes  The EI classification is completed by the addition of the suffix '1' or '2' to indicate which definition of 
insulation is used.  
In the case th e classification does not cover heating on both the closing and the opening face, this shall be 
made explicit in the classification.  
For fire -resisting doorsets also having passed smoke control doorsets criteria, the classification can be 
completed with th e Sa and/or S 200 classes.  
Table  4.11 
Applies to  Smoke control doorsets, openable windows (in walls and roofs), openable rooflights and shutters 
(including those that incorporate glazing, closing devices and other building hardware)  
S200 Depending on test  conditions fulfilled.  
Sa Depending on test conditions fulfilled.  
C The C classification may be declared where a self -closing device is fitted and the doorset was not manually 
closed for the purpose of the test.  
Optionally, for durability of self -closing  device, the C classification may be complemented by the digits 0 to 5 
according to the intended use where cycle testing has been carried out.  
Notes  This table does not include or address products for smoke ventilation.  
For smoke control doorsets also having passed fire -resisting doorsets criteria, the classification can be 
completed with the relevant E, EI 1/EI2, or EW classes .  
Additional smoke control classification of large industrial doorsets is possible to a leakage limit of 50 m3/h. 
Table  4.12 
Applies to  Closures for conveyers and track bound transportation systems  
E  15 20 30 45 60 90 120 180 240 360 
EI  15 20 30 45 60 90 120 180 240 360 
EW  15 20 30 45 60 90 120 180 240 360 
C The C classification may be declared where a self -closing device  is fitted and the closures for conveyers and 
track bound transportation system was not manually closed for the purpose of the test.  
Optionally, for durability of self -closing device, the C classification may be complemented by the digits 0 to 5 
according to the intended use where cycle testing has been carried out.  
Notes  The EI classification is completed by the addition of the suffix '1' or '2' to indicate which definition of 
insulation is used. An EI classification shall be generated for those cases where the test specimen is a pipe or 
duct configuration with no assessment of the closure for the conveyor system.   
EN 6  EN Sustained operational capability of any clearing device and/or any separating device for a conveyor system is 
identified by using a “T”.  
Table  4.13 
Applies to  Air transfer grilles  
E  15 20 30 45 60 90 120 180 240 360 
EI  15 20 30 45 60 90 120 180 240 360 
EW  15 20 30 45 60 90 120 180 240 360 
Notes  If satisfying the criteria with regard to integrity during the open state, the symbol ‘resist flame’ is added to the 
classification.  
If satisfying the criteria with regard to the 'smoldering' curve, the symbol 'IncSlow' is added to the 
classification.  
Table  4.14 
Applies to  Service ducts and shafts  
E  15 20 30 45 60 90 120 180 240 360 
EI  15 20 30 45 60 90 120 180 240 360 
Notes  The classification defines how the element has been tested and refers to a fire from the inside '(i→o)' or from 
the outside '(o→i)'  or  both '(i ↔o)'.  In addition, the symbols 've' and/or 'ho' show the product is  intended to 
be used for vertical and/or horizontal use.  
Table  4.15 
Applies to  Chimneys  
 G + distance in mm (e.g. G 50) or O + distance in mm (e.g. O 50)  
E  15 20 30 45 60 90 120 180 240 360 
EI  15 20 30 45 60 90 120 180 240 360 
T (operating  
temperature) in ºC  80 100 120 140 160 200 250 300 400 450 600 
Notes  Distance not required for built -in products.  
The classification defines how the element  has been tested and refers to a fire from the outside '(o→i)' or both 
'(i ↔o)'.  
've' and/or 'ho' show the product is intended to be used for vertical and/or horizontal use.  
Table  4.16 
Applies to  Wall and ceiling coverings  
K1 10 15 20 30 45 60 90 120 180 240 360 
K2 10 15 20 30 45 60 90 120 180 240 360 
Notes  The suffixes '1' and '2' indicate which substrates, fire behaviour criteria and extension rules are used in this 
classification.  
5. Products for use in ventilation systems (excluding smoke and heat exhaust ventilation)  
Table  5.1 
Applies to  Fire resisting ventilation ducts   
EN 7  EN E  15 20 30 45 60 90 120 180 240 360 
EI  15 20 30 45 60 90 120 180 240 360 
S 10 m3/(m2h) maximum leakage rate with reference to the duct surface area during the fire test  
Notes  In addition to meeting the requirements related to integrity (E) the duct must also achieve 15 m3/(m2h) 
maximum leakage rate with reference to duct surface area during the fire test.  
The classification defines how the element has been tested and refers to a fire from the inside '(i→o)' or from 
the outside '(o→i)'  or  both '(i ↔o)'.   
've' and/or 'ho'  show the product is intended to be used for vertical and/or horizontal use.  
Table  5.2 
Applies to  Fire dampers  
E  15 20 30 45 60 90 120 180 240 360 
EI  15 20 30 45 60 90 120 180 240 360 
S 200 m3/(m2h)  maximum leakage rate with reference to nominal duct cross sectional area:  
a) smallest size at ambient temperature;  
b) largest size at ambient temperature and during the fire test.  
Notes  In addition to meeting the requirements related to integrity (E) the fire  damper shall also:  
a) be tested from both sides, and  
b) achieve 360 m3/(m2h) maximum leakage rate with reference to nominal duct cross sectional area during 
the fire test.  
've' and/or 'ho' show the product is intended to be used for vertical and/or horizontal use.   
“H” indicates a fire damper capa ble of satisfying integrity (E), or integrity and insulation (EI) for the 
classification period having a horizontal blade axis or geometry.  
 “V” indicates a fire damper capable of satisfying integrity (E), or integrity and insulation (EI) for the 
classifi cation period having a vertical blade axis or geometry.  
6. Products to be used within electrical, power control and communication building service installations  
Table  6.1 
Applies to  Fire protective systems for cable systems and associated components  
P  15 20 30 45 60 90 120 180 240 360 
Notes  The classification shall indicate:  
The type of cables which can be installed within the fire protective systems, i.e. any standard cable or only 
specific cables; and  
the cables configurations which can  be protected and the operating voltage, i.e;  
 either to all types of power  cables (rated voltage 300/500 V) for an operating voltage up to 230/400 V 
(three -phase AC);  
 either to all types of power cables (rated voltage 450/750 V up to 0,6/1 kV) for an operating voltage u p 
to 400/690 V (Three -phase AC);  
 either to all types of signal -/control cables (rated voltage up to 170 V) for an operating voltage up to 110 
V; 
 or any combination of the above possibilities.  
Table  6.2 
Applies to  Unprotected electric, power control and communication cables with intrinsic fire resistance  
Pca  15 20 30 45 60 90 120 180 240 360  
EN 8  EN Notes  For power cables and control cables the classification shall indicate for which rated voltage the performance 
criteria are satisfied.  
Table  6.3 
Applies to  Unprotected small electric, power control and communication cables with intrinsic fire resistance (<20 
mm diameter and with conductor sizes ≤2.5 mm2)  
PH ca  15 20 30 45 60 90 120 180 240 360 
Notes  For power cables and control cables the classification shall indicate for which rated voltage the performance 
criteria are satisfied.  
7. Products to be used in smoke and heat control systems  
Table  7.1 
Applies to  Single compartment smoke control ducts  
E600  15 20 30 45 60 90 120 180 240 360 
S 10 m3/(m2h) maximum leakage rate with reference to duct surface area at ambient temperature and 5 m3/(m2h) 
maximum leakage rate related to the duct surface area during the fire test.  
Notes  In addition to meeting the requirements  related to integrity (E) the duct must  also achieve 10 m3/(m2h) 
maximum leakage rate with reference to duct surface area during the fire test.  
The classification is completed by the suffix 'single'  for products intended to be used for single compartment 
use only.  
've' and/or 'ho' show the prod uct is intended to be used for vertical and/or horizontal use, within the 
compartment.  
'500', '1 000', '1 500' show the product is intended to be used up to these values of under -pressure, measured in 
Pa at ambient temperature.  
Table  7.2 
Applies to  Multi -compartment fire resistant smoke control ducts  
E  15 20 30 45 60 90 120 180 240 360 
EI  15 20 30 45 60 90 120 180 240 360 
S 10 m3/(m2h) maximum leakage rate with reference to duct surface area at ambient temperature and 5 m3/(m2h) 
maximum leakage rate related to the duct surface area during the fire test.  
Notes  In addition to meeting the requirements related to integrity (E) the duct must also achieve 10 m3/(m2h) 
maximum leakage rate with reference to duct surface area during the fire test.  
The classification is completed by the suffix 'multi' for products intended to be used for multi -compartment 
use. 
've' and/or 'ho' show the product is intended to be used for vertical and/or horizontal use.  
'500', '1 000', '1 500' show the product is intended to be used up to these values of under -pressure, measured in 
Pa at ambient temperature.  
Table  7.3 
Applies to  Single compartment smoke control dampers  
E600  15 20 30 45 60 90 120 180 240 360 
S 200 m3/( m2h) maximum leakage rate with reference to nominal duct cross sectional area:  
a) smallest size at ambient temperature;  
b) largest size at ambient temperature and during the fire test.   
EN 9  EN Notes  In addition to meeting the requirements related to integrity (E) the single compartment smoke control damper 
shall a lso: 
a) be tested from both sides,  
b) pass a maintenance of opening test, and  
c) achieve 360 m3/(m2h) maximum leakage rate with reference to nominal duct cross sectional area during 
the fire test  
1) smallest size at ambient temperature, and  
2) largest size at ambient temperature and during the fire test.  
The classification is completed by the suffix 'single' for products intended for single compartment use.  
'ved', 'vew', ‘vedw' and/or 'hod', 'how', ‘hodw' show the product is intended to be used for vert ical and/or 
horizontal use, together with mounting in a duct or in a wall/floor or both respectively.  
“H” indicates a single compartment smoke control damper capable of satisfying integrity (E) for the 
classification period having a horizontal blade axis o r geometry,  
“V” indicates a single compartment smoke control damper capable of satisfying integrity (E) for the 
classification period having a vertical blade axis or geometry.  
‘500’, ‘1000’ and ‘1500’ show that the product is intended to be used up to this  value of under -pressure in Pa 
at ambient temperature.  
‘AA’ denotes for use with applications providing automatic activation, ‘MA’ denotes for use with applications 
requiring manual intervention or providing automatic activation.  
‘C300’, C 10000’, ‘C MOD’ or ‘C300(N)’, C 10000(N)’, ‘C MOD(N)’ show the product is intended to be used in smoke 
control only systems, fully controlled smoke control systems and smoke control systems combined with 
environmental systems or modulating smoke control dampers intended to be  used in any system having a 
controlled or variable position, tested under load, or without load (N), respectively.  
‘HOT 400/30’ (High Operational Temperature) indicates that the single compartment smoke control damper 
has been subjected to an additional t est to demonstrate that it has the ability to be opened and closed during a 
period of 30 minutes of temperatures up to 400 °C.  
Table  7.4 
Applies to  Multi -compartment fire resistant smoke control dampers  
E  15 20 30 45 60 90 120 180 240 360 
EI  15 20 30 45 60 90 120 180 240 360 
S 200 m3/( m2h) maximum leakage rate with reference to nominal duct cross sectional area:  
a) smallest size at ambient temperature;  
b) largest size at ambient temperature and during the fire test.  
Notes  In addition to meeting the requirements related to integrity (E) or integrity and insulation (EI) the multi -
compartment fire resistant smoke control damper shall also:  
a) be tested from both sides,  
b) pass a maintenance of opening test, and  
c) achieve 360 m3/(m2h) maximum leakage wi th reference to nominal duct cross sectional area during the 
fire test   
1) smallest size at ambient temperature, and  
2) largest size at ambient temperature and during the fire test.  
The classification is completed by the suffix 'multi' for products intende d for multi -compartment use.  
'ved', 'vew', ‘vedw' and/or 'hod', 'how', ‘hodw' show the product is intended to be used for vertical and/or 
horizontal use, together with mounting in a duct or in a wall/floor or both respectively.  
“H” indicates a multi -compar tment fire resistant smoke control damper capable of satisfying integrity (E), or 
integrity and insulation (EI) for the classification period having a horizontal blade axis or geometry,  
“V” indicates a multi -compartment fire resistant smoke control damper capable of satisfying integrity (E), or 
integrity and insulation (EI) for the classification period having a vertical blade axis or geometry.  
‘500’, ‘1000’ and ‘1500’ show that the product is intended to be used up to this value of under -pressure in Pa 
at ambient temperature.  
‘AA’ denotes for use with applications providing automatic activation, ‘MA’ denotes for use with applications 
requiring manual intervention or providing automatic activation.   
EN 10  EN ‘C300’, C 10000’, ‘C MOD’ or ‘C 300(N)’, C 10000(N)’, ‘C MOD(N)’ show the product is intended to be used in smoke 
control only systems, fully controlled smoke control systems and smoke control systems combined with 
environmental systems or modulating smoke control dampers intended to be used in any system having a 
contr olled or variable position, tested under load, or without load (N), respectively.  
‘HOT 400/30’ (High Operational Temperature) indicates that the multi -compartment fire resistant smoke 
control damper has been subjected to an additional test to demonstrate t hat it has the ability to be opened and 
closed during a period of 30 minutes of temperatures up to 400 °C.  
Table  7.5 
Applies to  Smoke barriers  
D600  15 20 30 45 60 90 120 180 240 360 
DH  15 20 30 45 60 90 120 180 240 360 
Table  7.6 
Applies to  Powered smoke and heat control ventilators (fans), including connectors  
F200  15 20 30 45 60 90 120 180 240 360 
F300  15 20 30 45 60 90 120 180 240 360 
F400  15 20 30 45 60 90 120 180 240 360 
F600  15 20 30 45 60 90 120 180 240 360 
F842  15 20 30 45 60 90 120 180 240 360 
Table  7.7 
Applies to  Natural smoke and heat exhaust ventilators  
B300  15 20 30 45 60 90 120 180 240 360 
B600  15 20 30 45 60 90 120 180 240 360 
Bθ  15 20 30 45 60 90 120 180 240 360 
Notes  Where θ indicates the exposure condition (temperature), higher than 300 ºC.  
These products are designed to open in case  of fire and do not have an integrity (E) classification.