SIST EN 494:2005
(Main)Fibre-cement profiled sheets and fittings - Product specification and test methods
Fibre-cement profiled sheets and fittings - Product specification and test methods
This document specifies the technical requirements and establishes methods of control and test as well as acceptance conditions for fibre-cement profiled sheets and their fibre-cement fittings for one or more of the following uses:
- roofing,
- internal wall finishes,
- external wall and ceiling finishes.
For the purpose of this document fibre-cement profiled sheets are classified according to their height of corrugation and their mechanical characteristics.
This document covers fibre-cement profiled sheets reinforced with fibres of different type as specified in 5.1.1, with and without factory applied coating.
This document does not include calculations with regard to works, design requirements, installation techniques, wind uplift or rain proofing of the installed sheets.
NOTE Some of these requirements can be applied to curved sheets, after agreement between manufacturer and purchaser.
Faserzement-Wellplatten und dazugehörige Formteile - Produktspezification und Prüfmethoden
Diese Norm legt die technischen Anforderungen an und die Verfahren zur Kontrolle und Prüfung sowie die Abnahmebedingungen für Faserzement-Wellplatten und dazugehörige Faserzement-Formteile für einen oder mehrere der folgenden Verwendungszwecke fest:
3 Bedachungen;
3 Innenwandbekleidungen;
3 Außenwand- und Deckenbekleidungen.
Für die Anwendung dieser Norm werden Faserzement-Wellplatten nach ihrer Wellenhöhe und ihren mechanischen Eigenschaften klassifiziert.
Diese Norm erstreckt sich auf Faserzement-Wellplatten, die mit Fasern unterschiedlicher Art, wie in 5.1.1 festgelegt, bewehrt sind.
Diese Norm enthält keine Berechnungen zu Bauleistungen, Anforderungen an die Ausführung, Verlege-verfahren, Windsogsicherheit oder Regensicherheit der verlegten Platten.
ANMERKUNG Einige dieser Anforderungen können nach Abstimmung zwischen Hersteller und Abnehmer auf gekrümmte Wellplatten angewendet werden.
Plaques profilées en fibres-ciment et accessoires - Spécifications du produit et méthodes d'essai
Le présent document spécifie les exigences techniques et établit les méthodes de contrôle et d?essai ainsi que les
conditions de réception des plaques profilées en fibres-ciment et de leurs accessoires en fibres-ciment utilisés pour
un ou plusieurs usages suivants :
- la toiture ;
- la finition des murs intérieurs,
- la finition des murs extérieurs et des plafonds.
Pour les besoins du présent document, les plaques profilées en fibres-ciment ont été classées en fonction de leur
hauteur d?onde et de leurs caractéristiques mécaniques.
Le présent document s?applique aux plaques profilées en fibres-ciment renforcées a l?aide de fibres de types
différents, telles que spécifiées en 5.1.1, avec ou sans revetement appliqué en usine.
Le présent document n?inclut pas les calculs relatifs aux travaux, aux exigences de conception, aux techniques de
pose, aux soulevements par le vent ou a l?étanchéité a la pluie des produits déja posés.
NOTE Certaines de ces exigences peuvent etre appliquées aux plaques cintrées, apres accord entre le fabricant et
l?acheteur.
Vlaknato-cementne valovite strešne plošče in fazonski kosi - Specifikacija za izdelek in preskusne metode
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 494:2005
01-marec-2005
1DGRPHãþD
SIST EN 494:1998
SIST EN 494:1998/A1:2000
SIST EN 494:1998/AC:2000
SIST EN 494:1998/AC1:1998
9ODNQDWRFHPHQWQHYDORYLWHVWUHãQHSORãþHLQID]RQVNLNRVL6SHFLILNDFLMD]D
L]GHOHNLQSUHVNXVQHPHWRGH
Fibre-cement profiled sheets and fittings - Product specification and test methods
Faserzement-Wellplatten und dazugehörige Formteile - Produktspezification und
Prüfmethoden
Plaques profilées en fibres-ciment et accessoires - Spécifications du produit et méthodes
d'essai
Ta slovenski standard je istoveten z: EN 494:2004
ICS:
91.060.20 Strehe Roofs
91.100.40 &HPHQWQLL]GHONLRMDþDQL] Products in fibre-reinforced
YODNQL cement
SIST EN 494:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN 494:2005
---------------------- Page: 2 ----------------------
SIST EN 494:2005
EUROPEAN STANDARD EN 494
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2004
ICS 91.100.40 Supersedes EN 494:1994
English version
Fibre-cement profiled sheets and fittings - Product specification
and test methods
Plaques profilées en fibres-ciment et accessoires - Faserzement-Wellplatten und dazugehörige Formteile -
Spécifications du produit et méthodes d'essai Produktspezification und Prüfmethoden
This European Standard was approved by CEN on 3 March 2004.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, 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
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 494:2004: E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 494:2005
EN 494:2004 (E)
Contents Page
Foreword.4
1 Scope .5
2 Normative references .5
3 Terms and definitions .5
4 Symbols and abbreviations .6
5 Product requirements .8
5.1 General.8
5.1.1 Composition.8
5.1.2 Appearance and finish .8
5.2 Dimensions and tolerance .9
5.2.1 General.9
5.2.2 Categorization by height of profile .9
5.2.3 Thickness .9
5.2.4 Tolerances on nominal dimensions.10
5.3 Physical requirements and characteristics for fibre-cement profiled sheets .11
5.3.1 General.11
5.3.2 Apparent density.11
5.3.3 Mechanical characteristics .11
5.3.4 Water impermeability .13
5.4 Durability requirements .13
5.4.1 General.13
5.4.2 Freeze-thaw .13
5.4.3 Heat-rain .13
5.4.4 Warm water.14
5.4.5 Soak-dry.14
5.5 Summary of characteristics and classification .14
5.5.1 Summary of characteristics.14
5.5.2 Classification.14
5.6 Fire and safety.15
5.6.1 External fire performance .15
5.6.2 Reaction to fire.15
5.6.3 Release of dangerous substances.15
5.7 Product information.15
6 Evaluation of conformity.16
6.1 General.16
6.2 Type testing.16
6.2.1 General.16
6.2.2 Initial type testing .16
6.2.3 Further type testing .17
6.3 Factory Production Control (FPC) .17
6.3.1 General.17
6.3.2 Acceptance tests .18
6.3.3 Equipment .19
6.3.4 Raw materials and components.19
6.3.5 Product testing and evaluation .19
6.3.6 Non-conforming products .19
6.4 Inspection of a consignment of finished products .19
7 Test methods.20
2
---------------------- Page: 4 ----------------------
SIST EN 494:2005
EN 494:2004 (E)
7.1 General .20
7.2 Dimensional tests.20
7.2.1 Dimensional tests for sheets.20
7.2.2 Dimensional tests for fittings.23
7.3 Tests for physical performance and characteristics .23
7.3.1 Apparent density .23
7.3.2 Mechanical characteristics.24
7.3.3 Water impermeability .27
7.3.4 Warm water .28
7.3.5 Soak-dry .29
7.4 Tests for climatic performance .30
7.4.1 Freeze-thaw.30
7.4.2 Heat-rain .32
7.4.3 Freeze-thaw test for fittings.33
7.5 Test for fire performance.33
7.5.1 Test for external fire performance .33
7.5.2 Test for reaction to fire .34
8 Marking, labelling and packaging.34
Annex A (normative) Figures .35
Annex B (normative) Consignment inspection sampling .46
Annex C (normative) Statistical method for determining the corresponding wet values or revised
dry specifications for the breaking load and/or bending moment when carrying out the
dry method of test for quality control purposes .47
C.1 Procedure.47
C.2 Determination of the correlation between the results of testing wet and dry specimens.47
C.3 Determination of the regression line.48
C.4 Determination of a value for wet testing from an obtained value for dry testing.48
C.5 Determination of the minimum value specified for dry testing x corresponding to the
std
minimum value specified for wet testing in this document y .49
std
Annex D (normative) Requirements of Decisions 2001/671/EC as regards the external fire
performance of roof coverings .51
Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU
Construction Products Directive .52
ZA.1 Scope and relevant characteristics .52
ZA.2 Procedure for the attestation of conformity of fibre cement profiled sheets and fittings.54
ZA.2.1 Systems of attestation of conformity.54
ZA.2.2 EC Declaration of conformity.56
ZA.3 CE marking.57
Annex ZB (informative) Survey of legislation relating to EC Directive 76/769/EEC .59
Bibliography.66
3
---------------------- Page: 5 ----------------------
SIST EN 494:2005
EN 494:2004 (E)
Foreword
This document (EN 494:2004) has been prepared by Technical Committee CEN/TC 128 “Roof covering
products for discontinuous laying and products for wall cladding”, the secretariat of which is held by IBN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by June 2005, and conflicting national standards shall be withdrawn at
the latest by June 2005.
This document supersedes EN 494:1994.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA and ZB, which is an integral part of this
document.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
and United Kingdom.
A distinction has been made between product appraisal (type tests) and routine quality control requirements
(acceptance tests).
Attention is drawn to the need for observance of EU and/or EFTA Directives transposed into national legal
requirements restricting the use of certain materials and to the related marking and labelling requirements.
The performance of a roof or another building part constructed with these products depends not only on the
properties of the product as required by this document, but also on the design, construction and installation of
the components as a whole in relation to the environment and conditions of use.
4
---------------------- Page: 6 ----------------------
SIST EN 494:2005
EN 494:2004 (E)
1 Scope
This document specifies the technical requirements and establishes methods of control and test as well as
acceptance conditions for fibre-cement profiled sheets and their fibre-cement fittings for one or more of the
following uses:
roofing,
internal wall finishes,
external wall and ceiling finishes.
For the purpose of this document fibre-cement profiled sheets are classified according to their height of
corrugation and their mechanical characteristics.
This document covers fibre-cement profiled sheets reinforced with fibres of different type as specified in 5.1.1,
with and without factory applied coating.
This document does not include calculations with regard to works, design requirements, installation
techniques, wind uplift or rain proofing of the installed sheets.
NOTE Some of these requirements can be applied to curved sheets, after agreement between manufacturer and
purchaser.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 197-1, Cement – Part 1: Composition, specifications and conformity criteria for common cements.
ENV 1187:2002, Test methods for external fire exposure to roofs.
EN 13501- 1, Fire classification of construction products and building elements - Part 1: Classification using
test data from reaction to fire test.
ISO 390, Products in fibre-reinforced cement - Sampling and inspection.
ISO 2602, Statistical interpretation of test results - Estimation of the mean - Confidence interval.
ISO 2859-1, Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by
acceptance quality limit (AQL) for lot-by-lot inspection.
ISO 3951, Sampling procedures and charts for inspection by variables for percent non-conforming.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
5
---------------------- Page: 7 ----------------------
SIST EN 494:2005
EN 494:2004 (E)
3.1
profiled sheet
component the cross section of which consists of corrugations as in the examples shown in Figures A.1 to A.7.
The corrugations are defined by their pitch a and their height h
3.2
acceptance test
test to establish whether a batch of products conforms to a specification. The test is performed on samples
drawn either from continuous production or from a consignment
NOTE Test methods and specification limit values are specified in this document. Sampling levels and acceptance
criteria are given in 6.3.2.
3.3
type test
test carried out to demonstrate conformity with the requirements of this document or for the approval of a new
product and/or when a fundamental change is made in formulation and/or method of manufacture, the effects
of which cannot be predicted on the basis of previous experience. The test is performed on the as delivered
product, but is not required for each production batch
3.4
acceptable quality level (AQL)
quality level which in a sampling plan corresponds to a specified, relatively high probability of acceptance. It is
the maximum percent defective (or maximum number of defects per 100 units) that for purposes of sampling
inspection can be considered satisfactory as a process average
NOTE A sampling scheme with an AQL of 4% means that batches containing up to 4% defective items have a high
probability of acceptance.
3.5
as delivered
the same condition as the producer intends to supply the product after completing all aspects of the process
including maturing and, when appropriate, painting
3.6
short sheet
sheet having a length less than or equal to 0,9 m
3.7
long sheet
sheet having a length greater than 0,9 m
3.8
upper face
face normally exposed to the weather
3.9
under face
the reverse of the upper face
4 Symbols and abbreviations
a 1. Pitch of the corrugations in millimetres
2. One of the coefficients of the regression line (Annex C)
b 1. Dimension of the specimen parallel to the supports in either the breaking load test or the bending
moment test in millimetres
6
---------------------- Page: 8 ----------------------
SIST EN 494:2005
EN 494:2004 (E)
2. One of the coefficients of the regression line (Annex C)
d Apparent density of the sheet in grams per cubic centimetres
e Thickness of the sheet in millimetres
f Increase in deflection between applying 20% and 70% of the specified load in the breaking load test in
millimetres
F Load at rupture from either the breaking load test or the bending moment test in newtons
F Load at rupture per metre width from the breaking load test in newtons
s
h Height of the corrugations in millimetres
h Height of the edge of the descending corrugation in millimetres
od
h Height of the edge of the ascending corrugation in millimetres
om
l Length of the sheet in millimetres
l Clear span between the supports in the breaking load test or span between the centre of the supports
s
in the bending moment test in millimetres
L Upper estimate of the mean breaking load or bending moment at 95% confidence level
1
L Lower estimate of the mean breaking load or bending moment at 95% confidence level
2
m Mass of the specimen after drying in grams
M Bending moment at rupture per metre length from the bending moment test in newton metres per
metre
R Ratio of estimate L to estimate L
L 2 1
s Standard deviation of the specimens with mean X
1 1
s Standard deviation of the specimens with mean X
2 2
V Volume of the test specimen in cubic centimetres
x Actual result obtained when dry testing
o
w Width of the sheet in millimetres
X Mean value of the test results (bending strength or bending moment) of the control specimens (first
1
lot) for a type test
X Mean value of the test results (bending strength or bending moment) of the specimens after a type
2
test
x Minimum value to be used as the specification for the dry method of test. This value is calculated at
std
the 97,5% lower confidence level from the value y specified for the wet method of test in this
std
document
7
---------------------- Page: 9 ----------------------
SIST EN 494:2005
EN 494:2004 (E)
y Value calculated from the value obtained from a specimen tested dry, which is the estimate at the
o
97,5% lower confidence level of the value expected from a specimen tested wet
y Minimum value specified in the standard for wet testing.
std
5 Product requirements
5.1 General
5.1.1 Composition
Fibre-cement profiled sheets and fittings shall consist essentially of cement or a calcium silicate formed by
chemical reaction of a siliceous and a calcareous material, reinforced by fibres. The cement shall comply with
EN 197-1 or with technical specifications relevant in the country of use.
Two types of fibre-reinforced cement profiled sheets and fittings are included in this document:
- Type AT (Asbestos Technology) for products the formulation of which contains chrysotile asbestos,
- Type NT (Non-asbestos Technology) for products reinforced by other fibres and not containing asbestos.
The reinforcing fibres shall be one or more of the following forms:
discrete elements randomly dispersed;
continuous strands or tapes;
nets or webs.
Process aids, fillers and pigments which are compatible with the composite may be added.
5.1.2 Appearance and finish
The sheets may be left with their natural colour, or colouring matters may be added in the composition; they
may also receive adherent coloured or uncoloured coatings on their surface.
Variations of the surface appearance which do not impair the characteristics of the sheets as defined in this
document are permitted.
On exposure, the surface and/or its coating will be affected by weathering which may vary with site, location,
aspect, pitch of roof and duration of exposure. Any deterioration in this respect shall not detract from the
minimum mechanical and physical characteristics as specified in this document or from the function of the
sheet as a durable element.
Edges shall be straight and clean.
Sheets may have mitred or pre-mitred corner(s) and/or may be predrilled for fixing.
The fittings shall have a general appearance and finish compatible with the sheets with which they are to be
used. They may be supplied with holes for fixing.
8
---------------------- Page: 10 ----------------------
SIST EN 494:2005
EN 494:2004 (E)
5.2 Dimensions and tolerance
5.2.1 General
The manufacturer shall specify the nominal dimensions.
NOTE See 5.7 for designation and information.
Fittings shall have nominal dimensions and shapes determined by the manufacturer and appropriate to the
corresponding corrugated section sheets.
5.2.2 Categorization by height of profile
The sheets are divided into five categories, depending on the nominal height of the corrugations, according to
Table 1 (examples of profiles are shown in Figures A.1 to A.7).
Table 1 – Categorization by height of profile
h
Category
(mm)
A 15 to 30
B 25 to 45
C 40 to 80
D 60 to 120
E 90 to 150
5.2.3 Thickness
The thickness of the sheets shall either:
be approximately constant across the width of the profile, as shown in Figure A.8a or
vary regularly from the crowns and valleys to the flanks of the corrugations, as shown in Figure A.8b.
When measured in accordance with 7.2.1.3 the minimum individual thickness for each category shall be as
specified in Table 2.
9
---------------------- Page: 11 ----------------------
SIST EN 494:2005
EN 494:2004 (E)
Table 2 – Minimum individual thickness
Minimum individual thickness
h (mm)
Category
(mm)
Length > 0,9 m Length ≤ 0,9 m
A 15 to 30 4,0 3,5
B 25 to 45 5,0 4,0
C 40 to 80 5,2 4,0
D 60 to 120 5,5 5,0
E 90 to 150 6,0 -
NOTE A special Class Z is allowed in Category A with a minimum individual thickness of 3,5 mm.
5.2.4 Tolerances on nominal dimensions
5.2.4.1 Profiled sheets
When measured in accordance with 7.2 the allowable dimensional variations shall be as follows:
a) on the pitch a:
a Tolerances
a ≤ 75 mm ± 1,5 mm
± 2,0 mm
75 mm < a ≤ 180 mm
± 2,5 mm
180 mm < a ≤ 260 mm
260 mm < a ± 3,0 mm
b) on the height h:
h Tolerances
± 2,0 mm
15 mm ≤ h ≤ 45 mm
45 mm ≤ h ≤ 150 mm ± 3,0 mm
c) on the length l : ± 10 mm
+10
d) on the width w : mm
−5
e) on nominal thickness e:
10
---------------------- Page: 12 ----------------------
SIST EN 494:2005
EN 494:2004 (E)
The average thickness measured in accordance with 7.2.1.3 shall be within ± 10% and not more than ±
0,6 mm of the nominal thickness.
f) on the squareness of the sheet:
Out of squareness ≤ 6,0 mm.
g) on the height of edges:
This tolerance applies only for sheets having a rising edge on one side and a descending edge on the
other side, and where it is required by the installation technique in order to ensure weather tightness
and/or geometrical fit.
The producer shall use the tolerances specified in installation standards or regulations or if none are given, he
shall specify them in his literature.
5.2.4.2 Fittings
When measured in accordance with 7.2, the tolerances on nominal dimensions shall be as follows:
a) on length and width ± 10 mm
b) on the average thickness ± 1 mm
NOTE Installation standards or regulations can specify tolerances on other dimensions.
5.3 Physical requirements and characteristics for fibre-cement profiled sheets
5.3.1 General
Mechanical and material properties are determined for products as delivered, whenever practical. The results
shall be identified as applying to coated or uncoated products.
NOTE See 6.3 for statistical interpretation.
5.3.2 Apparent density
The manufacturer’s literature shall specify the minimum apparent density of the sheets. The sheet shall have
an apparent density equal to or greater than that specified by the manufacturer when tested in accordance
with 7.3.1.
5.3.3 Mechanical charac
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.