CR 1187:2001
(Main)Test methods for external fire exposure to roofs
Test methods for external fire exposure to roofs
This European Standard specifies three methods for determining the performance of roofs to external fire exposure. The three methods assess the performance of roofs under the following conditions:test 1 - with burning brands test 2 - with burning brands and wind
test 3 - with burning brands, wind and supplementary radiant heat. The tests assess the fire spread across the external surface of the roof, the fire spread within the roof, the fire penetration (tests 1 and 3) and the production of flaming droplets or debris falling from the underside of the roof or from the exposed surface (tests 1 and 3). Tests 2 and 3 are not applicable to geometrically irregular roofs or roof mounted appliances e.g. ventilators and dome lights.
Prüfverfahren zur Beanspruchung von Bedachungen durch Feuer von außen
Diese Europäische Norm beschreibt drei Prüfmethoden das Brandverhalten von Bedachungen gegen Feuerbeanspruchung von außen zu ermitteln. Die drei Verfahren beurteilen das Brandverhalten von Bedachungen unter den folgenden Beanspruchungen: Prüfmethode 1: Mit Beanspruchung durch Brandsätze Prüfmethode 2: Mit Beanspruchung durch Brandsätze und Wind Prüfmethode 3: Mit Beanspruchung durch Brandsätze, Wind und zusätzlicher Strahlungswärme. Die Prüfverfahren beurteilen die Brandausbreitung auf der Dachoberfläche, die Brandausbreitung innerhalb des Dachaufbaus, die Durchdringung des Daches durch Feuer (Prüfmethode 1 und 3) und das Auftreten von brennendem Abtropfen oder brennenden Teilen entweder von der Dachunterseite fallend oder von der beanspruchten Dachoberfläche (Prüfmethode 1 und 3). Prüfmethode 2 und 3 sind nicht zur Beurteilung von geometrisch unregelmäßigen Dächern oder auf Dächern befestigten Anlagen wie Ventilatoren und Lichtkuppeln geeignet..
Méthodes d'essai pour l'exposition des toitures à un feu extérieur
La présente norme européenne spécifie trois méthodes permettant de déterminer les performances des toitures exposées à un feu extérieur. Les trois méthodes d'essai évaluent les performances des toitures dans les conditions suivantes : - essai 1 - avec brandons enflammés ; - essai 2 - avec brandons enflammés et vent ; - essai 3 - avec brandons enflammés, vent et chaleur rayonnante supplémentaire. Les essais évaluent la propagation du feu sur la surface extérieure de la toiture, la propagation du feu à l'intérieur de la toiture, la pénétration du feu (essais 1 et 3) et la production de flammèches ou de débris enflammés tombant de la face inférieure de la toiture ou de la surface exposée de la toiture (essais 1 et 3). Les essais 2 et 3 ne sont pas applicables aux toitures à géométrie irrégulière ou aux accessoires montés sur la toiture (par exemple : ouvrants de ventilation ou lanterneaux d'éclairage).
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Preskusne metode za strehe, izpostavljene požaru z zunanje strani
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST CR 1187:2002
01-februar-2002
Preskusne metode za strehe, izpostavljene požaru z zunanje strani
Test methods for external fire exposure to roofs
Prüfverfahren zur Beanspruchung von Bedachungen durch Feuer von außen
Méthodes d'essai pour l'exposition des toitures a un feu extérieur
Ta slovenski standard je istoveten z: CR 1187:2001
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
91.060.20 Strehe Roofs
SIST CR 1187:2002 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST CR 1187:2002
CEN REPORT
CR 1187
RAPPORT CEN
CEN BERICHT
May 2001
ICS 13.220.50
English version
Test methods for external fire exposure to roofs
Méthodes d'essai pour l'exposition des toitures à un feu Prüfverfahren zur Beanspruchung von Bedachungen durch
extérieur Feuer von außen
This CEN Report was approved by CEN on 19 April 2001. It has been drawn up by the Technical Committee CEN/TC 127.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. CR 1187:2001 E
worldwide for CEN national Members.
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Contents Page
Foreword 3
Introduction 4
1 Scope 5
2 Normative references 5
3 Terms and definitions 5
4 Test 1: Method with burning brands 7
4.1 Test equipment 7
4.2 Calibration 8
4.3 Test conditions (pitch) 8
4.4 Test specimen 8
4.5 Conditioning 10
4.6 Test environment 11
4.7 Test procedure 11
4.8 Observations and measurement 12
4.9 Test report 13
14
4.10 Direct field of application of test results
5 Test 2 : Method with burning brands and wind 15
5.1 Test equipment 15
5.2 Calibration 16
5.3 Test conditions 18
5.4 Test specimen 18
19
5.5 Conditioning
5.6 Test environment 19
5.7 Test procedure 19
5.8 Observations and measurements 20
5.9 Test report 20
5.10 Direct field of application of test results 21
6. Test 3 : Method with burning brands, wind and supplementary radiant heat. 21
6.1 Test equipment 21
6.2 Calibration 23
6.3 Test conditions 24
6.4 Test specimen 24
6.5 Conditioning 25
6.6 Test environment 26
6.7 Test procedure 26
6.8 Observations and measurements 27
6.9 Test report 27
6.10 Direct field of application of test results 29
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Foreword
This CEN Report has been prepared by Technical Committee CEN/TC 127 "Fire safety in buildings",
the secretariat of which is held by BSI.
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Introduction
The first mandate given to CEN/TC127 on fire resistance testing in support of the Construction
Products Directive required two test methods for external fire exposure to roofs. One test method
was to include the effect of a burning brand, the other was to include the effect of a burning brand
together with wind and supplementary radiant heat. These two draft methods were circulated for the
CEN 6 month enquiry, but many countries did not support the two and several countries requested
that only one method should be prepared by CEN.
The topic was referred to the EC Fire Regulators’ Group. Discussions took place in both the Fire
Regulators’ Group and the Standing Committee on Construction, and in April 1997 CEN/TC 127 was
requested to produce a standard incorporating the two existing draft methods and the Nordtest
method.
The Standing Committee accepted this as a short-term solution and strongly expressed the view that
a truly harmonised test procedure should be developed in the long term i.e. a single test procedure
for these characteristics.
Caution
The attention of all persons concerned with managing and carrying out these tests is drawn to the
fact that fire testing can be hazardous and that there is a possibility that toxic and/or harmful smoke
and gases may be evolved during the test.
An assessment of all potential hazards and risks to health should be made and safety precautions
should be identified and provided. Written safety instructions should be issued. Appropriate training
should be given to all relevant personnel. Laboratory personnel should ensure that they follow
written safety instructions at all times.
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1 Scope
This CEN Report specifies three methods for determining the performance of roofs to external fire
exposure. The three methods assess the performance of roofs under the following conditions:
test 1 - with burning brands
test 2 - with burning brands and wind
test 3 - with burning brands, wind and supplementary radiant heat.
The tests assess the fire spread across the external surface of the roof, the fire spread within the
roof, the fire penetration (tests 1 and 3) and the production of flaming droplets or debris falling from
the underside of the roof or from the exposed surface (tests 1 and 3).
Tests 2 and 3 are not applicable to geometrically irregular roofs or roof mounted appliances e.g.
ventilators and roof lights.
NOTE The three tests listed above do not imply any ranking order. Each test stands on its own
without the possibility to substitute or exchange one for another.
2 Normative references
This CEN Report incorporates by dated or undated reference, provisions from other publications.
These normative references are cited at the appropriate places in the text and the publications are
listed below. For dated references, subsequent amendments to or revisions of any of these
publications apply to this CEN Report only when incorporated in it by amendment or revision. For
undated references the latest edition of the publication referred to applies (including amendments).
EN ISO 13943:2000 Fire safety – Vocabulary (ISO 13943:2000).
3 Terms and definitions
For the purposes of this CEN Report, the terms and definitions given in EN ISO 13943:2000,
together with the following apply:
3.1
roof
covering and sealing systems including any insulating layers or vapour barriers normally provided
together with their supporting elements including attachment (glued, mechanically fastened etc.),
and roof lights or other closures for roof apertures that are intended to provide a weatherproof
surface
3.2
material
basic single substance or a uniformly dispersed mixture of substances (e.g. metal, stone, wood,
bitumen, concrete, mineral wool)
3.3
damaged material
material that has been burnt, melted or otherwise visually changed by heat. Discolouration and soot
deposits are not to be regarded as damaged material
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3.4
burnt material
material that has been destroyed by combustion or pyrolysis
3.5
composite
combination of materials which is generally recognized in building construction as a discrete entity
(e.g. coated or laminated products such as roofing felts)
3.6
assembly
fabrication of materials and / or composites (e.g. sandwich panels)
3.7
product
material, composite or assembled about which information is required
3.8
specimen
representative section of the roof prepared for the purpose of the test
3.9
continuous deck
element with a continuous supporting function in which the nominal gap between adjacent elements
is not greater than 0,5 mm (5,0 mm in the case of wooden planks with plain edges)
3.10
exposed surface
external surface of the specimen which is subject to the heating conditions of the test
3.11
measuring zone
area of the specimen within which measurements are made
3.12
underside
bottom surface of the specimen
3.13
sustained flaming
flames arising from an observed location, which persist for 5 s or longer
3.14
external fire spread
progression and extent of sustained flaming across the exposed surface of the specimen
3.15
fire penetration
appearance on the underside of any sustained flaming or glowing due to combustion including the
occurrence of any flaming droplets falling from the underside. Charring and/or discolouration are not
to be regarded as fire penetration
3.16
opening
appearance during the test of any hole greater than 25 mm in area or any crack greater than 2 mm
wide, which penetrates completely through the specimen and which would allow burning materials to
fall through the roof
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3.17
internal damage
extent of damaged material in each layer inside the specimen, measured from the edges of the
projection of the ignition source in the upwards and downwards directions with respect to the pitch of
the roof
3.18
fire spread within the roof
maximum burnt length measured from the upper edge of the projection of the ignition source in the
upward direction of each layer for sloped roofs, and in any direction for horizontal roofs (see 4.8.1)
3.19
flaming droplets or debris
burning material falling from the specimen that continues to burn on the floor for at least 5 s
3.20
joint
any kind of connection or link within a layer in the roof such as overlap, seams etc.
3.21
roof covering
uppermost layer of a roof. This layer can comprise single layer or multiple layer coverings
3.22
damaged length
the length of damaged material of the roof covering and the substrate respectively, expressed in mm
as measured from the centre of the wood crib position (for test method 2)
3.23
substrate
product which is used immediately beneath the roof covering, about which information is required
(for test method 2)
3.24
pitch
inclination of the roof to the horizontal
4 Test 1: Method with burning brands
4.1 Test equipment
4.1.1 Basket
A basket as shown in figure 1 shall be used. The basket shall be made from 3 mm diameter mild
steel wire forming a mesh of approximately 50 mm x 50 mm. The basket shall be open at the top
and bottom and have four projecting feet 10 mm long, one at each corner. The outer dimensions of
the basket shall be 300 mm x 300 mm x 200 mm deep. The mass of the basket shall be
(650 ± 50) g.
4.1.2 Wood wool
Wood wool shall consist of fibres approximately 2 mm wide x 0,2 mm to 0,3 mm thick and be
manufactured from softwood e.g. spruce, pine or fir.
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4.1.3 Balance
The balance is used to weigh the wood wool. It shall have a nominal capacity of at least 2 kg and an
accuracy of ± 1 g.
4.1.4 Timing device
A timing device with an accuracy of ± 5 s over 1 h shall be used.
4.2 Calibration
Each new batch of wood wool shall be checked by carrying out a control test as follows. A sample of
calcium board as described in 4.4.2.2 c), measuring 1 m x 1 m shall be supported horizontally at a
height of about 1 m above the floor. A basket filled with conditioned wood wool as described in 4.5.1
and 4.7.2 shall be placed at the centre of the board and ignited as described in 4.7.5. The burning
time shall be measured from the commencement of ignition until the final flame extinguishes.
Three separate tests shall be carried out. The calcium board used shall be cooled down between the
tests. If the range of the burning times recorded is greater than 2 min, a further three tests shall be
conducted. The mean burning time for all performed tests shall be calculated and shall lie within the
range of 4 min to 5 min.
4.3 Test conditions (pitch)
Roofs intended to be installed with pitches up to 20° in practice shall be tested at a pitch of 15°.
Roofs intended to be installed with pitches greater than 20° shall be tested at a pitch of 45°.
In special cases (e.g. where proof for a specific type of roof is to be provided), by way of departure
from the specifications regarding pitches, verification of the resistance of a roof to burning brands
may also be carried out by testing at the actual intended pitch. The test results so obtained shall
then be valid only for the pitch tested.
4.4 Test specimen
4.4.1 General
Four specimens with minimum dimensions 0,8 m in width x 1,8 m in length shall be prepared under
appropriate supervision by the laboratory for each roof pitch to be tested.
Roof lights shall be tested in the original size, with a waterproofing system attached as in practice.
The specimens shall be representative, in all details of practical application (except for standard
supporting deck), with regard to both the support, and the type and number of layers of roofing
materials (including any insulation, vapour barriers, etc), and with regard to the joining of those
layers. An example specimen section is shown in figure 2.
Where appropriate (see table 1), at least one specimen shall incorporate a vertical joint in the top
layer and another specimen shall incorporate a horizontal joint in the top layer. The other two
specimens may be without any joint in the top layer.
In the case of a roof with jointed thermal insulation, a vertical joint in the insulation shall be included
in each of the specimens. This joint shall be located on the longitudinal axis of the test specimen.
Additional guidance on joints is given in 4.4.3.
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4.4.2 Selection of standard supporting decks
4.4.2.1 General
When the product being evaluated is a roof covering system intended for general application over a
variety of decks (see 4.10), the test deck shall be selected in accordance with either 4.4.2.2 b) or
4.4.2.2 c).
4.4.2.2 Roof coverings intended to be installed over continuous decks
a) In the case of roof coverings intended to be installed over a continuous deck which is not profiled,
a roof deck in accordance with either 4.4.2.2 b) or 4.4.2.2 c) shall be used. If the materials are to be
laid over a profiled steel deck, then a trapezoidal profiled steel deck, in accordance with 4.4.2.2 d)
shall be used.
b) If it is intended to simulate a wooden continuous deck with gaps not exceeding 0,5 mm, the wood
particle board deck shall be constructed from planks 250 mm wide x 16 mm thick running parallel to
the eaves with plain edges and tightly butt jointed so that the gaps between planks do not exceed
0,5 mm.
If it is intended to simulate a deck made of narrow solid wood planks, the gaps between the particle
board panels shall be (5,0 0,5) mm.
The wood particle board shall consist of wood particles bonded with polymer adhesive (e.g.
ureaformaldehyde); it shall have a density of (680 ± 50) kg/m and shall not be treated with fire
retardants.
c) If roofing materials are intended to be laid only on continuous, non-combustible decks with a
minimum thickness of 10 mm, then the deck shall consist of 10 mm thick reinforced calcium silicate
board, dry density (680 ± 50) kg/m.
d) The trapezoidal profiled steel deck shall have the width of the crown approximately equal to 50 %
of the pitch and a trough depth of approximately 100 mm. The corrugations shall run parallel to the
eaves and be open at the ends.
4.4.2.3 Roof coverings intended to be installed without a continuous deck
The spacing of roof supports of any type shall be in accordance with the maximum permissible
spans proposed by the manufacturer for the particular application but not exceeding the minimum
dimensions prescribed for the specimen in 4.4.1.
4.4.3 Positioning of joints
4.4.3.1 Specimen types
The five types are illustrated in figure 3.
Type 1 : Single central joint in the top layer parallel to the roof pitch. No joints are required in any
other layer (including insulation).
Type 2 : Single joint in the top layer at 90° to the roof pitch 100 mm above the lower edge of the
basket. No joints are required in any other weathering layer. A single central joint in the insulation
parallel to the roof pitch shall be provided, where applicable (see table 1). The joint shall extend from
100 mm below the lower edge of the basket to 800 mm above the upper edge of the basket.
Type 3: No joint is required in any of the weathering layers. A single central joint in the insulation
parallel to the roof pitch shall be provided, where applicable. The joint shall extend from 100 mm
below the lower edge of the basket to 800 mm above the upper edge of the basket.
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Type 4: A single central joint in the weathering layer parallel to the roof pitch next to the insulation.
No joints are required in any other layer (including insulation).
Type 5: A single central joint in the weathering layer parallel to the roof pitch next to the top layer.
No joints are required in any other layer (including insulation).
Where there are overlapping layers, the position of the joints shall be considered to be the edge of
the upper layer.
4.4.3.2 Types to be tested
According to the different compositions of roofs, test specimens described in table 1 shall be tested:
Table 1 - Test specimens
Specimen Type
st nd rd th
Composition of the roof 1 spec 2 spec 3 spec 4 spec
3 or more weathering 124 5
layers
2 weathering layers 1 2 3 4
1 weathering layer 1 2 3 3
Where the dimensions of the elements of any of the layers are such that it requires more than four
pieces to cover the specimen, or if any of the layers are jointless, then the specimens shall be
fabricated in such a way that those layers are representative. In the first instance, at least one joint in
the layer(s) concerned shall be located underneath the basket.
4.4.4 Edge detailing
No special measures shall be taken by the sponsor to protect the edge of the specimen.
4.5 Conditioning
4.5.1 Wood wool
Before being stored, any compressed wood wool shall be loosened by pulling apart, but not to the
extent that the fibres are separated. Large pieces of unshredded wood shall be removed.
The wood wool shall not be selected for tests until the stabilized moisture content of a representative
sample lies within the range of 8 % to 12 % of the dry weight. This shall be determined by drying a
10 g to 20 g sample in an oven at (105° ± 5) °C. Wood wool used for this moisture content
determination shall not be used for the test.
A suitable amount of wood wool selected for the test shall be stored for at least 12 h in a room at a
temperature of (23 2) °C and a relative humidity of (50 5) %.
The wood wool shall not be exposed to a different atmosphere for a period of more than 1 h before
the test is carried out.
4.5.2 Test specimen
At the time of test, the test specimen shall be in equilibrium with the laboratory environment.
If the materials involved are likely to absorb or contain a significant amount of moisture (liable to
influence the test results), then extra care shall be exercised to ensure that the specimen is at this
stable equilibrium. The moisture content of these materials shall be measured and recorded at the
time of test.
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Special samples may be used for moisture content determination and may be conditioned with the
test specimens. These special samples shall be fabricated so as to represent the loss of water
vapour from the specimen by having similar thicknesses and exposed faces.
4.6 Test environment
Testing shall be carried out in a draught-free area, in an enclosure of not less than 150 m³ in volume.
The lower edge of the top surface of the specimen shall be (0,75 ± 0,25) m above the laboratory
floor. The temperature in the enclosure shall be (20 ± 10) °C prior to the fire test.
NOTE An exhaust hood may be fitted above the specimen provided it does not create a
draught over the specimen.
4.7 Test procedure
4.7.1 Protection of the edges
It may be necessary for the laboratory to take measures to prevent failure due to flames passing
around the edges of the specimen. These measures shall not affect the fire behaviour within the
measuring zone (see also figure 4) and shall be fully described in the test report. If it is necessary to
protect the lower edge, this shall be done in such a way so as not to interfere with or obstruct
material flowing or falling from the roof surface.
4.7.2 Filling the basket
Wood wool specified in 4.1.2 and conditioned in accordance with 4.5.1 shall be uniformly pressed
into the wire frame basket, in at least six layers, until the mass of wood wool in the basket is
(600 ± 10) g. The packed volume of the wood wool shall correspond to the internal dimensions of the
basket, excluding the feet.
4.7.3 Positioning of the brand
4.7.3.1 The basket filled with wood wool (the brand), shall be suspended with its base (excluding the
feet) parallel to the nominal slope of the specimen 10 mm from the surface of the specimen so that
this position is maintained throughout the test. On a curved surface the centre of the base of the
basket shall be 10 mm above the surface.
In cases where the weight of the basket will not affect the deformation of the roof or roof covering
during the test, the basket may be placed directly on the roof surface. Any device used to retain the
basket shall not interfere with the burning behaviour of the wood wool.
The brand shall be placed in accordance with figure 4.
4.7.3.2 Roof lights shall be tested with the basket placed in turn at:
a) the upper edge of the roof light, where the slope is smallest (see position a, figure 5);
b) the centre of the roof light (see position b, figure 5);
c) the lower edge of the roof light, where the slope is greatest (see position c, figure 5);
d) on the waterproofing attached to the lower side of the roof light and as close as possible to
the upstand of the roof light (see position d, figure 5).
If the roof light consists of several segments joined together, the basket shall be positioned over the
joint closest to the centre in test b.
A new specimen shall be used for each test if interference could exist between successive tests.
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4.7.4 Start of the test
For each fire test, the brand shall be positioned on the specimen before ignition. The wood wool
shall be ignited along the bottom of all four sides within a period of 10 s, commencing with the upper
side. The timing device shall be started at the commencement of the ignition of the wood wool.
4.7.5 End of the test
The duration of the test is 60 min, measured from the commencement of the ignition of the wood
wool. Surface flames still existing 30 min after the start of the test shall be extinguished e.g. by
applying a fire blanket, gaseous extinguishing agent etc, taking care not to influence any internal
constructions. 60 min after the start of the test, the roof shall be opened and checked for non-flaming
fire propagation (glowing combustion).
A test may be terminated earlier, if:
a) evidently there is no occurrence of fire (flames, glowing combustion, smoke);
b) the flames reached an edge of the sample;
c) penetration occurs; or
d) there is a risk to safety of personnel or impending damage to equipment.
4.8 Observations and measurement
4.8.1 General
During and/or after the test, the following parameters (see 4.8.2 to 4.8.4) shall be observed,
measured and recorded. Dimensions shall be measured in cm.
Progress of sustained flaming shall be estimated with respect to the base of the flame, in contact
with the exposed surface, and not with respect to the flame envelope.
If the roof is a flat roof with a pitch of zero degrees, then the relevant flame spread is that in any
direction. This is determined by reference to concentric circles using the centre of the basket as a
nominal origin. In such cases, if the radius of spread is L cm, the result shall be expressed as
(L - 15) cm, as an approximation to the distance of fire spread.
4.8.2 External fire spread
4.8.2.1 The time when the sustained flaming has progressed upwards 10 cm, 30 cm, 50 cm and
70 cm from the upper edge of the projection of the brand onto the exposed specimen surface and
when reaching the upper edge of the measuring zone, as defined in 3.11 and figure 4.
4.8.2.2 The time when the sustained flaming has progressed downwards 10 cm, 30 cm and 50 cm
from the lower edge of the projection of the brand onto the exposed specimen surface and when
reaching the lower edge of the measuring zone, as defined in 3.11 and figure 4.
4.8.2.3 The time of occurrence and description of any burning material (flaming droplets or debris)
falling from the exposed surface, as defined in 3.19.
4.8.2.4 The extent during the test of the external fire spread upwards and downwards, as defined in
3.14, expressed as the maximum burnt length from the edges of the projection of the brand onto the
exposed surface, measured at the end of the test.
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4.8.3 Fire penetration and openings
4.8.3.1 The time and nature of fire penetration, if this has occurred, as defined in 3.15.
4.8.3.2 The time of occurrence and description of any burning material (flaming droplets or debris)
falling from the underside of the specimen, as defined in 3.19.
4.8.3.3 The time of occurrence of openings and their dimensions, as defined in 3.16.
4.8.4 Damage
4.8.4.1 The extent and nature of internal damage upwards and downwards, measured after the test
from the edges of the projection of the brand, as defined in 3.17.
4.8.4.2 The maximum length of burnt material upwards and downwards in each layer, measured
after the test from the edges of the projection of the brand, as defined in 3.18.
4.8.4.3 The extent of area of internal damage, as defined in 3.4.
4.9 Test report
The report shall provide all the information relevant to the selected procedures, the products tested
and the results obtained. Photographs are strongly recommended to illustrate the test results.
The test report shall include the following:
a) reference to this CEN Report i.e. CR 1187 test 1;
b) the name of the test laboratory, the address where the test has been performed, and the date of
the test;
c) the names of the sponsor, the product and the manufacturer of the specimen and its component
parts, if known. If unknown, this shall be stated;
d) a statement concerning the degree of supervision exercised by the laboratory during specimen
fabrication. If there was no supervision, this shall be mentioned in the report, together with the
reason why this requirement was not complied with;
e) a full description of the product tested with a description of the test roof deck. This shall include
the method of attaching the roof covering (nails, fixings, spacing, adhesives, etc.), the density or
mass per unit area of materials and, where applicable, moisture content of the materials used.
Building material classes (e.g. with reference to standards), the nature and quantity of adhesives or
their rate of application may also be necessary to define the product uniquely;
f) description of any actions taken to prevent the flames passing around the edges (see 4.7.1). If no
actions were taken, this shall be stated.
g) for each tested specimen, information concerning:
- the pitch
o
- the room temperature at the beginning of the test, in C;
h) for each tested specimen observations recorded on its behaviour during and after the test
including:
(i) external fire spread, expressed by the time of occurrence, in minutes and seconds, and
description where applicable:
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- for the fire to spread distances of 10 cm, 30 cm, 50 cm and 70 cm, and to the edge of the
measuring zone, in an upwards direction;
- for the fire to spread distances of 10 cm, 30 cm and 50 cm, and to the edge of the
measuring zone, in a downwards direction;
- any falling flaming materials (see 3.19) from the surface of the roof:
-the burnt length upwards and downwards (see 4.2.8.4);
- the damaged area;
(ii) fire penetration, expressed by the time of occurrence in minutes and seconds and
description:
- any falling flaming materials (see 3.19) from the underside;
- openings (see 3.16) formed;
- any fire penetration (see 3.15) if it occurs;
(iii) damage:
- non-flaming propagation (smouldering or glowing combustion);
- the extent of internal damage (see 3.17) upwards and downwards;
- the maximum length of burnt material (see 3.4) upwards and downward in each functional
layer;
- the damaged area;
(iv) time at which the test is terminated and the cause of the termination (see 4.7.5).
NOTE For classification purposes, not all measurements taken might be needed but they
can be useful for the extension of the field of application, direct or extended.
i) the range of roof pitches for which the product has been evaluated and the types of deck for which
the report is valid (see 4.10).
4.10 Direct field of application of test results
4.10.1 Pitch
o
Test results obtained at 15° apply to roofs with pitches from 0 up to 20°.
Test results obtained at 45° apply to roofs with pitches greater than 20°.
o o
Test results obtained at a single specified pitch other than 15 or 45 apply to roofs for that pitch
only.
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SIST CR 1187:2002
Page 15
CR 1187:2001
4.10.2 Nature of the deck
4.10.2.1 Test with standard supporting decks
Test results obtaine
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