1、BRITISH STANDARDBS EN 14221:2006Timber and wood-based materials in internal windows, internal door leaves and internal doorframes Requirements and specificationsThe European Standard EN 14221:2006 has the status of a British StandardICS 79.060.01; 91.060.50g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43
2、g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 14221:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2006 BSI
3、2006ISBN 0 580 49755 0National forewordThis British Standard was published by BSI. It is the UK implementation of EN 14221:2006. The UK participation in its preparation was entrusted to Technical Committee B/543, Round and sawn timber.A list of organizations represented on B/543 can be obtained on r
4、equest to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date Comment
5、sEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14221November 2006ICS 79.060.01; 91.060.50English VersionTimber and wood-based materials in internal windows, internaldoor leaves and internal doorframes - Requirements andspecificationsBois et matriaux base de bois dans les fentresintrieures, les v
6、antaux et dormants de portes intrieures -Exigences et spcificationsHolz und Holzwerkstoffe in Innenfenstern, Innentren undInnentrzargen - Anforderungen und SpezifikationenThis European Standard was approved by CEN on 11 September 2006.CEN members are bound to comply with the CEN/CENELEC Internal Reg
7、ulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This Eur
8、opean Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the nation
9、al 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, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom
10、.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14221:2006: EEN 14221:2006
11、 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .6 4 General requirements7 5 Appearance 7 5.1 Characteristics.7 5.2 Appearance classes 7 5.2.1 General7 5.2.2 Finger jointing, end jointing, edge jointing and laminating 8 5.3 Adhesives and repa
12、ir compounds.8 5.4 Slope of grain.9 5.5 Repairs9 5.5.1 Features 9 5.5.2 Plugs .9 5.5.3 Filler 9 5.6 Wood-based products.10 6 Biological durability 10 7 Moisture content10 8 Surface finish .10 9 Density 10 Annex A (normative) Quality recommendations for elements in internal windows, door leaves and i
13、nternal doorframes .11 Bibliography 20 EN 14221:2006 (E) 3 Foreword This document (EN 14221:2006) has been prepared by Technical Committee CEN/TC 175 “Round and sawn timber”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by
14、 publication of an identical text or by endorsement, at the latest by May 2007, and conflicting national standards shall be withdrawn at the latest by October 2007. This Standard is one of a package to be implemented by 2007.10.31. The Standards included in the Package are: Standard Number Title 1 p
15、rEN 942 Revised Timber in joinery - General requirements 2 EN 13307-1 Timber blanks and semi-finished profiles for non-structural uses Part 1: Requirements 3 EN 14220 Timber and wood-based materials in external windows, external door leaves and external doorframes Requirements and specifications 4 E
16、N 14221 Timber and wood-based materials in internal windows, internal door leaves and internal doorframes Requirements and specifications Explanation Standards 3 and 4 rely on both Standards 1 and 2, and Standard 2 relies on 1. The revised prEN 942 contains changes which directly affect Standards 2,
17、 3 and 4 and therefore shall be available before they can be used effectively. NOTE Following the completion of the Technical Enquiry for prEN 13307-2 Timber blanks and semi-finished profiles for non-structural uses Part 2: Production control, it has been agreed to remove this Standard form the pack
18、age. As a result of the necessary changes it has been agreed to offer prEN 13307-2 as a CEN/TS. 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,
19、Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14221:2006 (E) 4 Introduction The classification method gi
20、ven in this standard is applicable to timber and wood-based products after it has been incorporated into internal windows, doors and doorframes. This standard contains the principle material requirements of timber in windows, internal door leaves and doorframes. This standard applies to timber and w
21、ood-based products, the processing and the components in the final products. Requirements for mechanical aspects are indirectly considered by appearance and density selection. Characteristics and principles are listed in Table 1 and clauses 5, 6, 7, 8 and 9. Specific national requirements are given
22、in Annex A. This standard includes a Normative Annex A providing guidance on National grading requirements. Tables A.1 and A.2 of Annex A provide default tables for circumstances where a National Annex is not available. This standard is part of a series of standards on timber in windows, doors and s
23、tairs. EN 14221:2006 (E) 5 1 Scope This European Standard specifes principle material requirements for timber and wood-based products in internal windows, doors and doorframes (with or without fixed parts), including appearance, biological durability and other physical characteristics. This European
24、 Standard applies to factory assembled internal windows, door leaves and doorframes uncoated or intended to be coated. If doors are covered by other decorative veneers or films the respective veneer or film Product Standard shall apply. EXAMPLE Timber veneers may be graded to EN 635: Parts 1, 2, 3 a
25、nd 5, and ENV 635-4. 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 20
26、4, Classification of thermoplastic wood adhesives for non-structural applications EN 335-2, Durability of wood and wood-based products - Definition of use classes - Part 2: Application to solid wood EN 844-3:1995, Round and sawn timber - Terminology - Part 3: General terms relating to sawn timber pr
27、EN 942:2006, Timber in joinery - General requirements EN 12765, Classification of thermosetting wood adhesives for non-structural applications EN 13307-1, Timber blanks and semi-finished profiles for non-structural uses - Part 1: Requirements EN 13183-1, Moisture content of a piece of sawn timber Pa
28、rt 1: Determination by oven dry method EN 13183-2, Moisture content of a piece of sawn timber Part 2: Estimation by electrical resistance method EN 13183-3, Moisture content of a piece of sawn timber Part 3: Estimation by capacitance method EN 14298, Sawn timber Assessment of drying quality EN 14221
29、:2006 (E) 6 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 844-3:1995, prEN 942:2006 and the following apply. These definitions shall take into consideration the situation after installation of the product. Where there is a conflict between the defin
30、itions in the Standards referenced and those given below, the definitions given below shall apply. 3.1 profile planed piece of solid or glue-laminated wood, finger-jointed or not, with a cross-section complying with the window, door leaf or doorframe requirements 3.2 concealed face face of a joinery
31、 part which, after installation of the joinery is completed, is permanently concealed by other parts of the joinery product or by other parts or other elements, including materials such as veneer, plastic or metal NOTE These faces may be visible before the product is installed. 3.3 semi-concealed fa
32、ce visible face of a joinery part, which cannot be viewed when the window or door is in the closed position 3.4 visible face face of a joinery part which, after installation of the joinery is completed, is not permanently concealed or semi-concealed NOTE 1 An opaque coating system does not constitut
33、e concealment. NOTE 2 Faces which are visible only when moving parts (e.g. window casements or door leaves) are open are classified as semi-concealed. 3.5 appearance class any surface in joinery classified according to shakes, resin pockets, bark pockets, discoloration, sapwood, exposed pith, ambros
34、ia beetle damage and knots 3.6 coating system combination of coating materials, which are to be applied or have been applied to the face of a joinery part EN 14221:2006 (E) 7 4 General requirements The following requirements for the characteristics of the timber and wood-based products used in inter
35、nal windows, doors and doorframes shall apply: requirements for appearance, which are given in Clause 5; requirements for biological durability, which are given in Clause 6; requirements for physical properties, which are given in Clauses 7, 8 and 9. For products where the ultimate location is not k
36、nown at the time of manufacture, sufficient information shall be provided to enable possible limitations for the product end use to be identified. 5 Appearance 5.1 Characteristics The characteristics of the profiles that are applicable to the finished product are measured and classified in accordanc
37、e with the requirements of prEN 942. 5.2 Appearance classes 5.2.1 General Table 1 identifies the elements for which characteristics shall be assigned and is a template to indicate the form in which the requirements are to be presented. National requirements are presented in Annex A. Where national r
38、equirements have not been indicated in Annex A then the values given in Tables A.1 and A.2 are to be used. The appropriate timber classes are as specified in prEN 942. EN 14221:2006 (E) 8 Table 1 Principle appearance classes for elements in internal windows, doors and doorframes Element prEN 942 Cla
39、ss Visible face (3.4) Semi Concealed face (3.3) Concealed face (3.2) Opaque coating system Translucent Coating system Opaque coating system Translucent Coating system Frames to windows and doors * * * * * Casement and sashes * * * * * Stiles and rails to doors * * * * * Lipping * * * * * Beads and s
40、imilar small sections * * * * * Thresholds, sills * * * * * Panelling and infills * * * * * *Information to be provided. See Table A.1 for default values. When classified as concealed, the grade selected shall not impair the serviceability of the product. 5.2.2 Finger jointing, end jointing, edge jo
41、inting and laminating Specific national requirements are given in Annex A. Where specific national requirements are not available the following restrictions shall apply: Finger jointing, end jointing, edge jointing and laminating is permitted in all elements of Table 1 unless otherwise specified. In
42、fill panels produced from finger jointed pieces shall be manufactured so that when assembled only the fingers of the finger joint are visible. Finger jointing is not permitted where a translucent coating system is applied except where agreed. Laminated timber shall comply with the requirements of EN
43、 13307-1. 5.3 Adhesives and repair compounds Glued timber joints or repairs shall be of durability class D2 as specified in EN 204 or C2 as specified in EN 12765. Any glued timber joints or elements which are in a special condition of high humidity shall use an adhesive of durability not inferior to
44、 class D3 as specified in EN 204 or C3 as specified in EN 12765. At the time of publication no European tests or classifications are available for repair compounds. Repair compounds shall therefore have a similar durability class as the appropriate adhesive. NOTE Adhesives used to connect timber wit
45、h non-timber components may need special consideration. EN 14221:2006 (E) 9 5.4 Slope of grain The slope of grain of timber used shall not exceed 1:10 (10 %), except in knot areas. In addition, the cumulative length of areas with sloped grain, evaluated along the axis of the timber member, shall not
46、 exceed 0,5 m or 20 % of the length of the piece, whichever is shorter. NOTE Slope of grain may also have an effect on the stability of the product. 5.5 Repairs 5.5.1 Features Where indicated in prEN 942 the following features shall be improved, using a repair compound or wooden plugs secured with a
47、dhesive, unless specifically excluded by the specification: - Loose or unsound knots; - Shakes; - Resin pockets and other areas of resin exudation; - Bark pockets; - Exposed pith; - Ambrosia beetle attack. 5.5.2 Plugs Any plug shall: a) be of the same species or species with similar characteristics
48、as the surrounding timber; b) be secured with an appropriate adhesive (see Clause 5.3); c) whenever possible lie with its grain direction in the same general direction as the grain of the piece in which it is inserted; d) be of a width (i.e. the lesser dimension) not greater than 6 mm above the maxi
49、mum limit of knot size for the specified class (the width of a non-cylindrical plug shall be not more than 30 mm); NOTE It is possible that a plug may be produced from branch material to create the appearance of a knot. e) be within (+ 0, -2) percentage points of the moisture content of the timber; f) be within the moisture content range recommended by the adhesive manufacturer; g) have at least 2/3 of its diameter within the face when occurring at an arris. Only one plug shall be used for a single repa
