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1、BRITISH STANDARD BS EN 490:1994 Concrete roofing tiles and fittings Product specifications The European Standard EN 490:1994 has the status of a British Standard UDC 692.415.3-4:691.32-4:666.972:658.562 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 09:24:06 GMT+00:00 2006, Uncontrolled Copy
2、, (c) BSI BS EN 490:1994 This British Standard, having been prepared under the direction of the Technical Committee B/542, was published under the authority of the Standards Board and comes into effect on 15 October 1994 BSI 02-1999 The following BSI references relate to the work on this standard: C
3、ommittee reference B/542/2 Draft for comment 91/13890 DC ISBN 0 580 23103 8 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: AustriaOeste
4、rreichisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standard FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Institut fr Normung e.V. GreeceHellenic Organization for Standardization IcelandTechnological Institute of
5、Iceland IrelandNational Standards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione LuxembourgInspection du Travail et des Mines NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund PortugalInstituto Portugus da Qualidade SpainAsociacin Espaola de Normali
6、zacin y Certificacin SwedenStandardiseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United Kingdom British Standards Institution Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 09:24:06 GMT+00:00 2006, Uncon
7、trolled Copy, (c) BSI BS EN 490:1994 BSI 02-1999i Contents Page Cooperating organizationsInside front cover National forewordii Foreword2 Text of EN 4903 National annex NA (informative) Committees responsibleInside back cover National annex NB (informative) Cross-referenceInside back cover Licensed
8、Copy: sheffieldun sheffieldun, na, Sat Nov 04 09:24:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 490:1994 ii BSI 02-1999 National foreword This British Standard has been prepared under the direction of Technical Committee B/542, Roofing and cladding products for discontinuous laying, and is t
9、he English language version of EN 490:1994 Concrete roofing tiles and fittings Product specifications, published by the European Committee for Standardization (CEN). BS EN 490 and BS EN 491 specify requirements and test methods for concrete roof tiles and together supersede BS 473, BS 550:1990 which
10、 is withdrawn. EN 490 was produced as a result of international discussions in which the UK took an active part. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a Brit
11、ish Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 10, an inside back cover and a back cover. This standard has been updated (see copyright date) and may
12、have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 09:24:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 490 March 1994 UDC 692.415.3-4:69
13、1.32-4:666.972:658.562 Descriptors: Roof, roofing, roofing tiles, concrete, specifications, tests, quality control, sampling, designation, marking English version Concrete roofing tiles and fittings Product specifications Tuiles et accessoires en bton Spcifications des produits Dach- und Formsteine
14、aus Beton Produktanforderungen This European Standard was approved by CEN on 1994-03-18. 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 lis
15、ts 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 respo
16、nsibility 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, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway
17、, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1994 Copyright reserved to CEN members Ref. No. EN 490:1994 E Licensed Copy: sh
18、effieldun sheffieldun, na, Sat Nov 04 09:24:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 490:1994 BSI 02-1999 2 Foreword This European Standard has been prepared by the Technical Committee CEN/TC 128, Roof covering products for discontinuous laying, the secretariat of which is held by ON. This E
19、uropean Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 1994, and conflicting national standards shall be withdrawn at the latest by September 1994. According to the CEN/CENELEC Internal Regulations,
20、the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Page Foreword2 Introduction3 1Scope3 2Normat
21、ive references3 3Definitions, symbols and abbreviations3 3.1Definitions3 3.2Symbols and abbreviations4 4Requirements4 4.1Materials4 4.2Hanging length and perpendicularity4 4.3Cover width4 4.4Flatness5 4.5Mass5 4.6Fixing holes5 4.7Transverse strength5 4.8Impermeability5 4.9Freeze/thaw resistance5 4.1
22、0 Nib support5 5Compliance, sampling and quality control system6 5.1Compliance6 5.2Sampling6 5.3Quality control system6 6Designation system6 7Marking, labelling, packing8 7.1Products8 7.2Documents8 Annex A (normative) Sampling procedure9 Annex B (informative) Fasteners and fixings9 Annex C (informat
23、ive) Surface characteristics9 Annex D (informative) Combustibility9 Annex E (informative) Bibliography9 Table 1 Minimum characteristic transverse strength Fc5 Table 2 Type tests and quality control tests7 Table 3 Sampling plan 17 Table 4 Sampling plan 28 Licensed Copy: sheffieldun sheffieldun, na, S
24、at Nov 04 09:24:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 490:1994 BSI 02-19993 Introduction This standard specifies requirements for concrete tiles and fittings for pitched roofs. Due to the time constraints under which the standard has been drafted, the specification with respect to fitting
25、s is limited to materials and the impermeability of valley tiles. The specification of any surface coating is not included in this standard and informative advice on surface characteristics is given in Annex C. The performance of the products has been defined, as far as possible, in terms of a numbe
26、r of type tests. A distinction has been made between type tests and routine quality control tests. A distinction has been made between the sampling requirements for the certification of a consignment of finished products, quality disputes and third party control. The sampling plans do not apply to q
27、uality control. The performance of a roof constructed with these products depends not only on the properties of the product as required by the standard, but also on the design, construction and performance of the roof as a whole in relation to the environment and conditions of use. A brief statement
28、 on combustibility is given in Annex D. 1 Scope This European Standard specifies requirements for concrete roofing tiles, and fittings limited to those described in the text, for assembly into pitched roof coverings. 2 Normative references This European Standard incorporates by dated or undated refe
29、rence, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorpor
30、ated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 491:1994, Concrete roofing tiles and fittings Test methods. 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of this standard, the following definitions
31、apply. 3.1.1 aggregate concrete component consisting of uncrushed and/or crushed natural and/or artificial mineral substances with particle sizes and shapes suitable for the production of concrete 3.1.2 addition finely divided material that may be added to concrete in order to improve certain proper
32、ties or to achieve special properties 3.1.3 pigment addition inert to the ingredients of concrete and intended to provide colour to the concrete 3.1.4 admixture product which is added in small quantities by mass of the cement before or during mixing or during an additional mixing operation, causing
33、required modifications to the properties 3.1.5 cement hydraulic binder, i.e. finely ground inorganic material, which, when mixed with water, forms a paste which sets, by means of hydration reactions and processes and which, after hardening, retains its strength and stability 3.1.6 fitting component,
34、 mainly of concrete, that is complementary to the tiles and has a special function NOTEExamples include ridge tile, hip tile, valley tile, verge tile, angle tile. 3.1.7 valley tile fitting for use at a meeting of two roof pitches forming a re-entrant angle 3.1.8 interlocking tile profiled or flat ti
35、le which has a side lock with or without a head lock feature Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 09:24:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 490:1994 4 BSI 02-1999 3.1.9 non-interlocking tile generally flat, cross cambered and/or longitudinally cambered tile, which is g
36、enerally rectangular in shape, with or without a featured front edge 3.1.10 tile with a regular front edge tile (interlocking and non-interlocking) which, by design, has a constant or regularly varying hanging length across the width 3.1.11 tile with an irregular front edge tile (interlocking and no
37、n-interlocking) which, by design, has an irregular varying hanging length across the width 3.1.12 type test test concerned with one or more of the following, the effect of which cannot be anticipated on the basis of previous test results: a) the introduction of a new product; b) a fundamental change
38、 in formulation; c) a fundamental change in method of manufacture; d) a change in product design. 3.1.13 quality control test test performed on samples drawn either from continuous production or from a consignment of finished products, to establish whether a batch of products conforms to this standa
39、rd 3.1.14 characteristic transverse strength the value of transverse strength for which 95 % of the individual transverse strength results are or are calculated to be greater than or equal to this value (AQL 5 %) 3.2 Symbols and abbreviations 4 Requirements 4.1 Materials The concrete used in the man
40、ufacture of tiles and fittings shall be formed by mixing cement, aggregate and water and produced by the hardening of the cement paste (cement and water). NOTEBesides the basic components the concrete may also contain pigments, admixtures and/or additives. 4.2 Hanging length and perpendicularity The
41、 tile hanging length shall be declared in the manufacturers technical specification. For tiles with a regular front edge, the values of l1 shall be within 4 mm of the manufacturers declared value when tested according to 4.1.1 and 4.1.2 of EN 491:1994. The squareness for tiles with nominally constan
42、t hanging length, when tested according to 4.1.1 of EN 491:1994, shall be calculated as the difference between values l2 and l3 shall be not greater than 4 mm. NOTESome tiles are designed, for example for aesthetic reasons, with an irregular front edge. In these cases, the test method and requiremen
43、ts do not apply. 4.3 Cover width 4.3.1 General The title cover width Cw and optionally the cover width shunts shall be declared in the manufacturers technical specification. NOTESome tiles are designed, for example for aesthetic reasons, with a random cover width. In these cases, the requirements ac
44、cording to 4.3 do not apply. l1hanging length of a tile l2 l3hanging edge length, as defined in 4.1 of EN 491:1994, of a tile Cwnominal cover width of one tile Cwccover width closed up value of ten tiles Cwdcover width drawn out value of ten tiles dprofile depth of a tile Fccharacteristic transverse
45、 strength of tiles Fitransverse strength of an individual tile AQLacceptable quality level ILinterlocking NLnon-interlocking RFregular front edge IFirregular front edge Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 09:24:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 490:1994 BSI 02-19995
46、 4.3.2 Interlocking tiles When tiles, with cover width shunts declared by the manufacturer, are tested according to 4.2.1 of EN 491:1994 the cover width shall comply with the following: When tiles without cover width shunts and tiles with cover width shunt but not declared by the manufacturer are te
47、sted according to 4.2.1 of EN 491:1994 the average cover width shall be within 5 mm of the manufacturers declared cover width. 4.3.3 Non-interlocking tiles When tiles are tested according to 4.2.2 of EN 491:1994 the average cover width shall be within 3 mm of the manufacturers declared value. 4.4 Fl
48、atness When tiles are tested according to 4.3 of EN 491:1994, the gap between any desired contact point and the flat surface shall not exceed 3 mm or Cw/100 mm to the nearest millimetre, whichever is the greater. NOTEFor some tile patterns the test method and 4.4 are not suitable and do not apply, f
49、or example: 1) the tiles are designed to have less than four desired contact points to a flat surface; and/or 2) the tiles are designed to be irregular, for example, for aesthetic reasons. 4.5 Mass The mass of tiles shall be declared in the manufacturers technical specification. When tiles are tested according to 4.4 of EN 491:1994 the average mass shall be: a) manufacturers declared mass 0,2 kg for tiles with declared mass of not greater than 2 kg; b) manufacturers declared mass 10 % for tiles with declared mass of greater t
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