SIST EN 492:2013
(Main)Fibre-cement slates and fittings - Product specification and test methods
Fibre-cement slates 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 slates and their fibre-cement fittings for one or more of the following uses: - roofing; - internal wall finishes; - external wall and ceiling finishes.
Faserzement-Dachplatten und dazugehörige Formteile - Produktspezifikation und Prüfverfahren
Dieses Dokument legt die technischen Anforderungen an und die Verfahren zur Kontrolle und Prüfung sowie die Abnahmebedingungen für Faserzement-Dachplatten und dazugehörige Faserzement-Formteile für einen oder mehrere der folgenden Verwendungszwecke fest:
- Bedachungen;
- Innenwandverkleidungen;
- Außenwand- und Deckenverkleidungen.
Sie gilt für Faserzement-Dachplatten bis zu einer maximale Höhe h von 850 mm (siehe Abschnitt 4) für eine überlappende Verlegung. Für die Anwendung dieser Norm werden Faserzement-Dachplatten nach ihrem Biegemoment klassifiziert.
Dieses Dokument erstreckt sich auf Faserzement-Dachplatten, die mit Fasern unterschiedlicher Art, wie in 5.1.1 festgelegt, bewehrt sind.
Diese Norm enthält keine Berechnungen zu Bauleistungen, Anforderungen an die Ausführung, Verlegever-fahren, Windsogsicherheit oder Regensicherheit der verlegten Produkte.
Ardoises en fibres-ciment et leurs accessoires en fibres-ciment - Spécification 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 ardoises en fibres-ciment et de leurs accessoires en fibres-ciment utilisés pour un ou plusieurs des usages suivants :
- la toiture ;
- la finition des murs intérieurs ;
- la finition des murs extérieurs et des plafonds.
Il s'applique aux ardoises en fibres-ciment dont la hauteur h (voir Article 4) ne dépasse pas 850 mm pour une pose avec recouvrement. Pour les besoins du présent document, les ardoises en fibres-ciment ont été classées en fonction de leur moment de flexion.
Le présent document s'applique aux ardoises en fibres-ciment renforcées à l'aide de fibres de types différents, comme spécifié en 5.1.1.
Le présent document n'inclut pas les calculs relatifs aux travaux, aux exigences de conception, aux techniques de pose, aux soulèvements par le vent ou à l'étanchéité à la pluie des produits déjà posés.
Vlaknato-cementne strešne plošče in fazonski kosi - Specifikacija za izdelek in preskusne metode
Ta dokument določa tehnične zahteve in metode za nadzor ter preskusne metode in pogoje za sprejem za vlaknato-cementne strešne plošče ter njihove vlaknato-cementne fazonske kose za eno ali več navedenih vrst uporabe: – prekrivanje streh; – zaključke notranjih sten; – zaključke zunanjih sten in stropov.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Faserzement-Dachplatten und dazugehörige Formteile - Produktspezifikation und PrüfverfahrenArdoises en fibres-ciment et leurs accessoires en fibres-ciment - Spécification du produit et méthodes d'essaiFibre-cement slates and fittings - Product specification and test methods91.100.40YODNQLProducts in fibre-reinforced cement91.060.20StreheRoofsICS:Ta slovenski standard je istoveten z:EN 492:2012SIST EN 492:2013en,fr,de01-april-2013SIST EN 492:2013SLOVENSKI
STANDARDSIST EN 492:2005/A2:2006SIST EN 492:2005/A1:2006SIST EN 492:20051DGRPHãþD
SIST EN 492:2013
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 492
October 2012 ICS 91.100.40 Supersedes EN 492:2004English Version
Fibre-cement slates and fittings - Product specification and test methods
Ardoises en fibres-ciment et leurs accessoires en fibres-ciment - Spécification du produit et méthodes d'essai
Faserzement-Dachplatten und dazugehörige Formteile - Produktspezifikation und Prüfverfahren This European Standard was approved by CEN on 4 August 2012.
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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 492:2012: ESIST EN 492:2013
EN 492:2012 (E) 2 Contents Page Foreword .41Scope .52Normative references .53Terms and definitions .64Symbols and abbreviations .65Product requirements .75.1General .75.1.1Composition .75.1.2Appearance and finish .85.2Dimensions and tolerance .85.2.1General .85.2.2Thicknesses .85.2.3Tolerances on nominal dimensions.85.3Physical requirements and characteristics for fibre-cement slates .95.3.1General .95.3.2Apparent density.95.3.3Mechanical characteristics .95.3.4Water impermeability .95.4Durability requirements . 105.4.1General . 105.4.2Freeze-thaw . 105.4.3Heat-rain . 105.4.4Warm water . 105.4.5Soak-dry . 105.5Fire and safety . 105.5.1External fire performance . 105.5.2Reaction to fire . 105.5.3Release of dangerous substances . 105.6Product information. 106Evaluation of conformity . 116.1General . 116.2Initial type testing . 116.3Factory Production Control (FPC) . 126.3.1General . 126.3.2Acceptance tests . 126.3.3Equipment . 136.3.4Raw materials and components . 136.3.5Product testing and evaluation . 136.3.6Non-conforming products . 136.4Inspection of a consignment of finished products . 147Test methods . 147.1General . 147.2Dimensional tests . 147.2.1Preparation of specimen . 147.2.2Apparatus . 147.2.3Procedure . 147.2.4Expression and interpretation of results . 147.3Tests for physical performance and characteristics . 14SIST EN 492:2013
EN 492:2012 (E) 3 7.3.1Apparent density . 147.3.2Mechanical characteristics: Breaking load test . 157.3.3Water impermeability . 187.3.4Warm water . 187.3.5Soak-dry . 197.4Tests for climatic performance . 207.4.1Freeze-thaw . 207.4.2Heat-rain . 227.5Test for fire performance . 237.5.1Test for external fire performance . 237.5.2Test for reaction to fire . 238Marking, labelling and packaging . 31Annex A (normative)
Consignment inspection sampling . 32Annex B (normative)
Statistical method for determining the corresponding wet values or revised dry specifications for the bending moment when carrying out the dry method of test for quality control purposes . 33B.1Procedure . 33B.2Determination of the correlation between the results of testing wet and dry specimens . 33B.3Determination of the regression line . 34B.4Determination of a value for wet testing from an obtained value for dry testing . 34B.5Determination of the minimum value specified for dry testing xstd corresponding to the minimum value specified for wet testing in this standard ystd . 35Annex C (informative)
Examples . 37C.1Examples of dimension h . 37C.2Examples of fibre-cement slates installed showing lines of fixing . 39Annex D (normative)
Requirements of Decision 2001/671/EC regarding the external fire performance of roof coverings expressed following the classes defined in EN 13501-5 . 40Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive . 41ZA.1Scope and relevant characteristics . 41ZA.2Procedure for the attestation of conformity of fibre cement slates and fittings . 43ZA.2.1Systems of attestation of conformity . 43ZA.2.2EC Declaration of conformity . 45ZA.3CE marking . 47Bibliography . 49 SIST EN 492:2013
EN 492:2012 (E) 4 Foreword This document (EN 492:2012) 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 April 2013 , and conflicting national standards shall be withdrawn at the latest by April 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 492:2004. 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, which is an integral part of this document. In comparison with the previous edition of the standard, the following sections have been changed or added: 2, 3.6, 3.7, 5.1.1, 5.3.3, 5.5.3, 6.3.2, 6.4, 7.3.4.4, 7.3.5.4, 7.5.1.2, 7.5.2.2, Annex A, Annex D. Annex ZB concerning the EC Directive 76/769/EEC has been deleted. A distinction has been made between product appraisal (type tests) and routine quality control requirements (acceptance tests). 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 standard, but also on the design, construction and installation of the components as a whole in relation to the environment and conditions of use. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
SIST EN 492:2013
EN 492:2012 (E) 5 1 Scope This European Standard specifies the technical requirements and establishes methods of control and test as well as acceptance conditions for fibre-cement slates and their fibre-cement fittings for one or more of the following uses: roofing; internal wall finishes; external wall and ceiling finishes. This European Standard applies to fibre-cement slates with a height dimension h (see Clause 4) not exceeding 850 mm for overlapping assembly. For the purpose of this European Standard, fibre-cement slates have been classified according to their bending moment. This European Standard covers fibre-cement slates reinforced with fibres of different types as specified in 5.1.1. This European Standard does not include calculations with regard to works, design requirements, installation techniques, wind uplift or rain proofing of the installed products. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. 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 CEN/TS 1187:2012, 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 tests EN 13501-5, Fire classification of construction products and building elements — Part 5: Classification using data from external fire exposure to roofs tests EN 13823, Reaction to fire tests for building products — Building products excluding floorings exposed to the thermal attack by a single burning item EN ISO 1716, Reaction to fire tests for products — Determination of the gross heat of combustion (calorific value) (ISO 1716) 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 3951-1, Sampling procedures for inspection by variables — Part 1: Specification for single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection for a single quality characteristic and a single AQL SIST EN 492:2013
EN 492:2012 (E) 6 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 acceptance test test to establish whether a batch of products conforms to a specification and which is performed on samples drawn either from continuous production or from a consignment Note 1 to entry: Test methods and specification limit values are specified in this standard. Sampling levels and acceptance criteria are given in 6.3.2. 3.2 type test test carried out to demonstrate conformity with the requirements of this standard 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 Note 1 to entry: The test is performed on the product as delivered, but is not required for each production batch. 3.3 acceptable quality level (AQL) quality level which in a sampling plan corresponds to a specified, relatively high probability of acceptance Note 1 to entry: 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 2 to entry: A sampling scheme with an AQL of 4 % means that batches containing up to 4 % defective items have a high probability of acceptance. 3.4 as delivered same condition as the producer intends to supply the product after completing all aspects of the process including maturing and, when appropriate, painting 3.5 upper face face normally exposed to the weather 3.6 under face reverse of upper face 3.7 NT fibre-cement slates and fittings of type NT cover products made using a non-asbestos technology 3.8 ambient laboratory conditions laboratory conditions which are a temperature of (23 ± 5) °C and a relative humidity of (50 ± 20) % 4 Symbols and abbreviations b dimension of the specimen (length or width) measured parallel to the test machine supports in millimetres
one of the coefficients of the regression line (Annex B) SIST EN 492:2013
EN 492:2012 (E) 7 d apparent density of the fibre-cement slate in grams per cubic centimetre e thickness of the fibre-cement slate in millimetres F load at rupture in newtons h dimension of the fibre-cement slate measured perpendicular to the line of fixing which is at or nearest to the horizontal plane of the roof (see Annex C, Figures C.1 and C.2), in millimetres
ls span between the centres of the test machine supports in the bending moment test in millimetres
m mass of the specimen after drying in grams M bending moment at rupture in newton metres per metre Mfi bending moment (average of both directions) at rupture of the specimen from the ith pair tested after the type test (second lot) in newton metres per metre Mfci
bending moment (average of both directions) at rupture of the specimen from the ith pair tested for reference in the type test (first lot) in newton metres per metre
R average ratio of the bending moments at rupture before and after the type test Ri individual ratio of the bending moments at rupture of the ith pair of specimens before and after a type test RL lower estimate of the mean of the ratios at 95 % confidence level of the bending moments at rupture before and after the type test s standard deviation of the values in the appropriate calculation V volume of the specimen in cubic centimetres xo actual result obtained when dry testing
xstd minimum value to be used as the specification for the dry method of test. This value is calculated at the 97,5 % lower confidence level from the value ystd specified for the wet method of test in this document yo value calculated from the value obtained from a specimen tested dry, which is the estimate at the 97,5 % lower confidence level of the value expected from a specimen tested wet ystd minimum value specified in the standard for wet testing. 5 Product requirements 5.1 General 5.1.1 Composition Fibre-cement slates 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. SIST EN 492:2013
EN 492:2012 (E) 8 This European Standard covers fibre-reinforced cement slates and fittings of type NT.
The reinforcing fibres shall take 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 exposed face of the fibre-cement slates may be with or without texture. The fibre-cement slates may be coloured or left in their natural colour. The fibre-cement slates may also receive adherent coloured or uncoloured coatings on their surface. The fibre-cement slates may be supplied with holes for fixing. 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 fibre-cement slate as a durable element. The fittings shall have a general appearance and finish compatible with the fibre-cement slates with which they are to be used. They may be supplied with holes for fixing. 5.2 Dimensions and tolerance 5.2.1 General The manufacturer shall specify the shapes, sizes and configuration of edges. NOTE See 5.6 for designation and information. Fittings shall have nominal dimensions and shapes determined by the manufacturer and appropriate to the corresponding fibre-cement slates. 5.2.2 Thicknesses The actual fibre-cement slate thickness determined in accordance with 7.2 shall be not less than that shown in Table 1. The nominal thickness shall be specified by the manufacturer. The nominal thickness of the fittings shall be not less than the corresponding nominal thickness of the fibre-cement slates with which the fittings are to be used. 5.2.3 Tolerances on nominal dimensions The maximum dimensional variation when measured as specified in 7.2 shall be as follows: Length and width:
± 3 mm; Thickness:
2510+− % of the nominal value. SIST EN 492:2013
EN 492:2012 (E) 9 For fittings that replace fibre-cement slates (e.g. ventilation fibre-cement slates) the tolerances shall be the same as those on the fibre-cement slates. For other fittings (e.g. ridges) the tolerances shall be specified by the manufacturer. 5.3 Physical requirements and characteristics for fibre-cement slates 5.3.1 General Mechanical and material properties are determined on products as delivered, wherever practicable. The results shall be identified as applying to coated or uncoated material. NOTE See 6.3 for statistical interpretation. 5.3.2 Apparent density The manufacturer’s literature shall specify the minimum apparent density of the fibre-cement slates. The fibre-cement slates 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 characteristics When tested in accordance with 7.3.2, the fibre-cement slates shall have a minimum average bending moment per metre width in newton metres per metre as specified in Table 1. The minimum bending moment at rupture in the weaker direction shall be not less than 60 % of the values specified in Table 1 for the average in both directions. Table 1 — Minimum bending moment per metre and minimum thickness Height h (mm) Minimum
thickness ea (mm) Minimum bending moment, average of the two directions (Nm/m) h ≤ 350 2,8 30 350 < h ≤ 450 3,0 40 450 < h ≤ 600 3,5 45 600 < h ≤ 850 4,0 55 a e is the arithmetic mean of four measurements (according to 7.2.4).
5.3.4 Water impermeability When tested in accordance with 7.3.3, traces of moisture may appear on the under face of the fibre-cement slate, but in no instance shall there be any formation of drops of water. SIST EN 492:2013
EN 492:2012 (E) 10 5.4 Durability requirements 5.4.1 General Mechanical and material properties are normally determined for as delivered products. The results shall be identified as applying to coated or uncoated material. Performance of the coating in the tests specified in 5.4.2 and 5.4.3 shall not be considered in the assessment of the product. 5.4.2 Freeze-thaw When tested in accordance with 7.4.1 after 100 freeze-thaw cycles, the ratio RL as defined in 7.4.1.4 shall be not less than 0,75. 5.4.3 Heat-rain When tested in accordance with 7.4.2 after 50 heat-rain cycles, any visible cracks, delamination or other defects in the fibre-cement slates shall not be of such degree as to affect their performance in use. Water tightness is assessed according to 5.3.4. Warping and bowing are visually assessed. 5.4.4 Warm water When tested in accordance with 7.3.4, after 56 days at 60 °C, the ratio RL as defined in 7.3.4.4 shall be not less than 0,75. 5.4.5 Soak-dry When tested in accordance with 7.3.5, after 50 soak-dry cycles, the ratio RL as defined in 7.3.5.4 shall be not less than 0,75. 5.5 Fire and safety 5.5.1 External fire performance When subject to regulatory requirements, the external fire performance of the slates shall be declared in accordance with 7.5.1. 5.5.2 Reaction to fire When subject to regulatory requirements, the reaction to fire of the slates or fittings shall be declared in accordance with 7.5.2. 5.5.3 Release of dangerous substances Materials used in products shall not release any dangerous substances in excess of the maximum permitted levels specified in a relevant European Standard for the material or permitted in the national regulations of the member state of destination. NOTE See notes in ZA.1 and ZA.3. 5.6 Product information The designation of the fibre-cement slate shall include at least the following: SIST EN 492:2013
EN 492:2012 (E) 11 type of product NT (see 5.1.1); name of the fibre-cement slate;
height (h), size and shape. The manufacturer shall include the following in his literature: a) designation of the fibre-cement slate as above; b) nominal values for: 1) thickness;
2) length and width. c) minimum apparent density; d) information relevant to the handling and installation. 6 Evaluation of conformity 6.1 General The conformity of products with the requirements of this standard shall be demonstrated by: initial type testing; and factory production control by the manufacturer. 6.2 Initial type testing Type tests shall be carried out on products as delivered. If several formats or sizes of the same nominal thickness are being produced from the same composition and
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