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1、BRITISH STANDARD BS 8212:1995 Code of practice for Dry lining and partitioning using gypsum plasterboard UDC 629.253:691.311-419:62.034.92:006.76:(083.71) Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 05:40:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 8212
2、:1995 This British Standard, having been prepared under the direction of Technical Committee B/544, was published under the authority of the Standards Board and comes into effect on 15 January 1995 BSI 02-1999 First published January 1989 Second edition January 1995 The following BSI references rela
3、te to the work on this standard: Committee reference B/544/3 Draft for comment 93/105870 DC ISBN 0 580 22879 7 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Technical Committee B/544, Plastering, rendering, dry lining, screeds and in s
4、itu flooring, to Subcommittee B/544/3, Dry lining, upon which the following bodies were represented: Association of Building Component Manufacturers Building Employers Confederation Department of the Environment (Building Research Establishment) Federation of Plastering and Drywall Contractors Gypsu
5、m Products Development Association Local Authority Organizations National Council of Building Material Producers Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 05:40:57 GMT+00:00 2006, Uncontrolled Copy,
6、(c) BSI BS 8212:1995 BSI 02-1999i Contents Page Committees responsibleInside front cover Forewordiii Section 1. General 1.1Scope1 1.2References1 1.3Definitions1 1.4Exchange of information2 1.5Time schedule2 Section 2. Materials, components and accessories 2.1Materials4 2.2Components and accessories4
7、 Section 3. Design 3.1Selection of a dry lining system7 3.2Thickness of dry lining system7 3.3Deviations and tolerances8 3.4Partitions13 3.5Provision for services14 3.6Ceramic wall tiling14 3.7Decoration15 3.8Mass/unit area of wall lining and partitioning systems15 3.9Knocks and abrasions15 3.10 Env
8、ironmental conditions15 3.11 Sealing15 3.12 Thermal insulation17 3.13 Water vapour checks18 3.14 Sound insulation18 3.15 Fire protection18 3.16 Cavity barriers18 3.17 Movement joints18 Section 4. Backgrounds 4.1Condition of background19 4.2Solid backgrounds19 4.3Timber backgrounds19 4.4Metal backgro
9、unds22 Section 5. Site considerations 5.1General23 5.2Environmental conditions23 5.3Organization prior to the commencement of dry lining and partitioning works23 5.4Storage of materials23 5.5Lighting24 5.6Scaffolding24 5.7Hoisting24 5.8Protection of the work24 Section 6. Work on site 6.1Cutting and
10、installation of gypsum wallboard25 6.2Fixing to solid backgrounds25 6.3Installation and fixing to timber framing31 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 05:40:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 8212:1995 BSI 02-1999 Page 6.4Installation o
11、f and fixing to metal framing33 6.5Jointing38 6.6Partitions40 6.7Decoration43 Annex A (informative) Thickness tolerance for zinc coating type Z27544 Annex B (informative) Lighting for dry lining44 Figure 1 Deviation band for finished surface of a partition or lining9 Figure 2 Straightness of walls i
12、n any 5 m length10 Figure 3 Permissible deviations on jointing11 Figure 4 Straightedge for measuring deviations at external and internal angles12 Figure 5 Joints over timber supports in walls and partitions20 Figure 6 Joints over timber supports in ceilings: fastenings near cut ends of boards21 Figu
13、re 7 Setting out board: external angles and abutments26 Figure 8 Setting out board: intermediate joints on studs27 Figure 9 Wall to ceiling junction28 Figure 10 Suggested adhesive dab fixing pattern for gypsum wallboard and thermal wallboard laminates29 Figure 11 Channel spacer clip30 Figure 12 Fixi
14、ng thermal wallboard laminates with resin based adhesive31 Figure 13 Typical examples of beam and column encasement33 Figure 14 Typical steel stud partitions34 Figure 15 Movement joints37 Figure 16 Angle jointing39 Figure 17 Prefabricated gypsum wallboard panel41 Figure 18 Laminated partition42 Tabl
15、e 1 Design allowance for thickness of linings to solid backgrounds7 Table 2 Typical independent wall linings8 Table 3 Dry lining to receive ceramic wall tiling16 Table 4 Typical mass/unit area of gypsum wallboard wall lining and partitioning systems17 Table 5 Spacing of timber supports in walls and
16、partitions20 Table 6 Spacing of timber supports in ceilings21 Table 7 Spacing of metal supports in walls and partitions22 Table 8 Spacing of metal supports in ceilings22 Table 9 Fixing of wallboard and thermal wallboard laminate with gypsum based adhesives29 Table 10 Dimensions of timbers40 Table 11
17、 Dimensions of battens and fastenings43 Table A.1 Thickness tolerance for zinc coating type Z275 (including coating on both sides)44 List of references46 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 05:40:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 8212:
18、1995 BSI 02-1999iii Foreword This British Standard was prepared under the direction of Technical Committee B/544. It supersedes BS 8212:1989 which is withdrawn. Dry lining is an alternative to the traditional wet plastering of walls and ceilings to provide surfaces suitable to receive various decora
19、tive treatments. The method involves the fixing of a sheet material, which is subsequently jointed in the appropriate manner, to the face of the walls or ceilings. This code confines itself to recommendations for dry lining using gypsum wallboard; it is not intended to apply to other sheet materials
20、. This code provides guidance on the selection of a dry lining system and lists factors that should be taken into consideration in the selection process. It gives recommendations for methods of dry lining to a variety of solid backgrounds and to timber and metal framing. Recommendations for on site
21、methods of working are also included together with detailed descriptions of the materials, components and accessories used in the dry lining process. Annex A gives thickness tolerances for metal used for metal framing. Annex B give recommendations for lighting conditions appropriate to dry lining op
22、erations. This edition introduces technical changes but it does not reflect a full review or revision of the standard, which will be undertaken in due course. As a code of practice, this British Standard takes the form of guidance and recommendations. It should not be quoted as if it were a specific
23、ation and particular care should be taken to ensure that claims of compliance are not misleading. 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 British Standard do
24、es not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 46, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. T
25、his will be indicated in the amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 05:40:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: London South Bank University, London South Bank University, Fri De
26、c 08 05:40:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 8212:1995 BSI 02-19991 Section 1. General 1.1 Scope This British Standard code of practice gives recommendations for dry lining walls, ceilings and partitioning using gypsum wallboard. Composite products such as gypsum plasterboard backed w
27、ith insulation materials are also included. This code does not deal with linings to heated ceilings. 1.2 References 1.2.1 Normative references This standard incorporates, by dated or undated reference, provisions from other publications. These normative references are made at the appropriate places
28、in the text and the cited publications are listed on page 46. For dated references, only the edition cited applies; any subsequent amendments to or revisions of the cited publication apply to this standard only when incorporated in the reference by amendment or revision. For undated references, the
29、latest edition of the cited publication applies, together with any amendments. 1.2.2 Informative references This standard refers to other publications that provide information or guidance. Editions of these publications current at the time of issue of this standard are listed on the inside back cove
30、r, but reference should be made to the latest editions. 1.3 Definitions For the purposes of this code the definitions given in BS 1191-1 and BS 1191-2, BS 1230-1, BS 4022, BS 6100-1, BS 6100-6.1 and BS 6100-6.6.2 apply, together with the following. 1.3.1 face surface of gypsum plasterboard on which
31、the paper extends continuously to cover the edges 1.3.2 back surface of gypsum plasterboard having a double thickness of paper along the two edges 1.3.3 insulating gypsum wallboard gypsum wallboard backed with a film having a surface of low emissivity, e.g. aluminium, to improve thermal insulation w
32、hen used in conjunction with an air space 1.3.4 thermal wallboard laminate gypsum wallboard backed with an insulating material such as expanded polystyrene, polyurethane, phenolformaldehyde foam or man-made mineral fibre materials 1.3.5 predecorated gypsum wallboard gypsum wallboard faced with eithe
33、r paper or cloth backed vinyl film 1.3.6 prefabricated gypsum wallboard panel partitions prefabricated gypsum wallboard panels, manufactured in accordance with the requirements of BS 4022 and nailed to timber framing members 1.3.7 laminated gypsum plasterboard partitions three or more layers of gyps
34、um wallboard bonded together and fixed at the perimeter to a steel or timber frame 1.3.8 relocatable partitions partitions that permit reassembly after removal and relocation 1.3.9 metal furring channel galvanized steel section for the attachment of wallboard linings to solid backgrounds 1.3.10 resi
35、lient fixing channel galvanized steel section for securing gypsum wallboard to the supporting background by a resilient mounting 1.3.11 nailable fixing plug galvanized steel nail with an expandable plastics sleeve 1.3.12 general purpose bonding compound adhesive made from retarded calcium sulfate he
36、mihydrate and additives 1.3.13 thermal wallboard laminate adhesive adhesive made from synthetic resin emulsion with fillers used for bonding thermal wallboard laminates to plastered walls Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 05:40:57 GMT+00:00 2006, U
37、ncontrolled Copy, (c) BSI BS 8212:1995 2 BSI 02-1999 1.3.14 resilient wallboard adhesive adhesive made from synthetic rubber/resin used to bond plasterboard to plasterboard 1.3.15 decorative textured coating plastics based textured coating used as a decorative finish 1.4 Exchange of information When
38、 preparing dry lining details the designer should take into account the following points. a) The choice of dry lining systems to be used in various parts of the building depends on functional requirements and the nature of the background. The background, including building and manufacturing toleranc
39、es, and its dry lining should therefore receive consideration together. This is particularly important where plasterboard is to be fixed to trussed rafters. A thickness of rafter conforming to BS 5268-3 and perfectly adequate from a structural point of view may be unsuitable to permit adequate fixin
40、g of the end of the plasterboard in accordance with the recommendations given in 4.3.3. b) The type of surface finish and any other points affecting the final appearance, particularly the compatibility of the dry lining with the proposed decorative finish. c) The area and types of finish and thickne
41、ss required together with sufficient details of the nature of the surfaces to be dry lined and the junctions with window frames, door frames, ceilings and linings, so that the most suitable dry lining materials and methods can be selected. d) The effect of the thickness of the dry lining on: 1) the
42、finished sizes and heights of rooms or other spaces; 2) the thickness of grounds; timber framing requirements; 3) flames which are to be flush both sides in thin walls and partitions; 4) the positioning of frames and other joinery relative to dry lining faces; 5) grooves in joinery that are to recei
43、ve dry lining; 6) the positioning of and provision of adequate support for heating appliances and other installations, fixtures and fittings; 7) any other items, the specification for which can be drawn up in detail only after the dry lining thicknesses have been determined. e) The preparation of th
44、e different building surfaces to receive the various types of cornices, arrises, corner treatments, metal accessories (such as angles and beads), expansion joints, coves, mouldings, dado treatments and enrichments. f) The work in other trades, particularly in connection with service pipes, conduits
45、and wiring, that are to be covered by or contained in the dry lining; the predetermined position of any heating appliances and their dry lining treatment. Care should be taken not to destroy the structural integrity of the dry lining or partitioning. g) The suitability of materials that may be in co
46、ntact with different types of dry lining, as well as of any protective treatment that may be necessary. Exchange of pertinent information should take place as soon as possible after contract among those responsible for the execution of backgrounds, the dry lining, internal plastering and subsequent
47、decoration and with other trades whose work will affect or be affected by the dry lining. The dry lining contractor should be furnished with all necessary specifications and appropriate working drawings and should visit the site to become acquainted with building progress. A record should be kept of
48、 all dates in connection with construction and preparation of backgrounds and of the different operations of dry lining and decoration in the various parts of the building. There should be a full exchange of information regarding site conditions. 1.5 Time schedule When preparing a time schedule for
49、the building operations it should be ensured that the various trades follow one another in correct sequence and that they do not interfere unduly with each others work. The time schedule for the whole of the building work should be planned in the initial stages before operations are begun and in consultation with those who will be responsible for carrying out the work of each of the trades concerned. The time schedule should allot times for the construction and preparation of the backgrounds to receive dry lining and all
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