1、BS EN 13914-1:2016Design, preparation andapplication of externalrendering and internalplasteringPart 1: External renderingBS EN 13914-1:2016 Incorporating corrigendum April 2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 13914-1:2016 BRITISH STANDARDNationa
2、l forewordThis British Standard is the UK implementation of EN 13914-1:2016. It supersedes BS EN 13914-1:2005 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee B/544, Plastering, rendering, dry lining.A list of organizations represented on this committee
3、 can be obtained on request to its secretary.National Annex NA provides additional information and guidance from the UK committee.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institut
4、ion 2017. Published by BSI Standards Limited 2017ISBN 978 0 580 98042 8ICS 91.100.10Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2016.Amendments/corr
5、igenda issued since publicationDate Text affected30 April 2017 National Annex NA addedBS EN 13914-1:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13914-1 March 2016 ICS 91.100.10 Supersedes EN 13914-1:2005English Version Design, preparation and application of external rendering and intern
6、al plastering - Part 1: External rendering Conception, prparation et application des enduits extrieurs et intrieurs - Partie 1: Enduits extrieurs Planung, Zubereitung und Ausfhrung von Auen- und Innenputzen - Teil 1: Auenputz This European Standard was approved by CEN on 2 January 2016. CEN members
7、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 t
8、o 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
9、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, Lith
10、uania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-
11、1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13914-1:2016 EBS EN 13914-1:2016EN 13914-1:2016 (E) 2 Contents Page European foreword . 4 1 Scope 6 2 Normative references 7 3 Terms and definitions . 8 4 Essential
12、 principles and building programme 11 4.1 Essential principles . 11 4.2 Building programme . 12 5 Materials 12 5.1 Types of render . 12 5.2 Materials for site-made renders . 14 5.3 Water 15 5.4 Materials for reinforcement, carrier and beads . 15 5.5 Fixings 16 5.6 Firring. 17 6 Design considerations
13、 17 6.1 General . 17 6.2 Factors affecting the design of the rendering system . 17 6.3 Characteristics of background 18 6.4 Adequacy of the background . 19 6.5 Durability of the render . 20 6.6 Exposure conditions 21 6.7 Resistance to rain penetration 21 6.8 Resistance to water rising from the groun
14、d without pressure (capillary water) 22 6.9 Soluble salts . 22 6.10 Effects of atmospheric pollution . 22 6.11 Effects of freezing . 22 6.12 Resistance to impact or abrasion . 23 6.13 Corrosion of metals . 23 6.14 Occurrence of cracking 23 6.15 Thermal considerations 26 6.16 Protection afforded by a
15、rchitectural features and functions 26 6.17 Selection of renders. 36 6.18 Number, thickness and relative strength of coats 37 6.19 Types of finish . 40 6.20 Colour and texture . 40 7 Work on site, preparation and application of renderings 41 7.1 General . 41 7.2 Storage of materials 41 7.3 Scaffoldi
16、ng 41 7.4 Protection of adjacent surfaces . 41 7.5 Preparation of background 41 7.6 Proportioning of mix materials on site 44 7.7 Mixing on site . 44 7.8 Forming architectural features . 45 BS EN 13914-1:2016EN 13914-1:2016 (E) 3 7.9 Application of the various coats 45 8 Maintenance and repair (othe
17、r than restoration) 46 8.1 General . 46 8.2 Inspection 47 8.3 Repairs to cracks . 47 8.4 Repair of hollow or detached areas . 47 8.5 Overcoming unsatisfactory appearance. 48 8.6 Overcoming water penetration . 49 Annex A (informative) Example on the selection of site mixed prescribed renders mixed in
18、 accordance with background type . 50 A.1 General . 50 A.2 Strong mixes . 50 A.3 Moderately strong mixes . 50 A.4 Weak mixes . 50 Annex B (informative) Restoration of renders on old and historic buildings . 51 B.1 General . 51 B.2 Preliminary investigations 51 B.3 Preparatory work . 53 B.4 Restorati
19、on systems and measures . 53 B.5 Design . 54 B.6 Application 54 Annex C (informative) Examples of products for reinforcement, carrier and beads 56 C.1 General . 56 C.2 Figures 56 Annex D (informative) Examples of types of finish . 60 Bibliography . 61 BS EN 13914-1:2016EN 13914-1:2016 (E)BS EN 13914
20、-1:2016EN 13914-1:2016 (E) 2 Contents Page European foreword . 4 1 Scope 6 2 Normative references 7 3 Terms and definitions . 8 4 Essential principles and building programme 11 4.1 Essential principles . 11 4.2 Building programme . 12 5 Materials 12 5.1 Types of render . 12 5.2 Materials for site-ma
21、de renders . 14 5.3 Water 15 5.4 Materials for reinforcement, carrier and beads . 15 5.5 Fixings 16 5.6 Firring. 17 6 Design considerations 17 6.1 General . 17 6.2 Factors affecting the design of the rendering system . 17 6.3 Characteristics of background 18 6.4 Adequacy of the background . 19 6.5 D
22、urability of the render . 20 6.6 Exposure conditions 21 6.7 Resistance to rain penetration 21 6.8 Resistance to water rising from the ground without pressure (capillary water) 22 6.9 Soluble salts . 22 6.10 Effects of atmospheric pollution . 22 6.11 Effects of freezing . 22 6.12 Resistance to impact
23、 or abrasion . 23 6.13 Corrosion of metals . 23 6.14 Occurrence of cracking 23 6.15 Thermal considerations 26 6.16 Protection afforded by architectural features and functions 26 6.17 Selection of renders. 36 6.18 Number, thickness and relative strength of coats 37 6.19 Types of finish . 40 6.20 Colo
24、ur and texture . 40 7 Work on site, preparation and application of renderings 41 7.1 General . 41 7.2 Storage of materials 41 7.3 Scaffolding 41 7.4 Protection of adjacent surfaces . 41 7.5 Preparation of background 41 7.6 Proportioning of mix materials on site 44 7.7 Mixing on site . 44 7.8 Forming
25、 architectural features . 45 BS EN 13914-1:2016EN 13914-1:2016 (E) 3 7.9 Application of the various coats 45 8 Maintenance and repair (other than restoration) 46 8.1 General . 46 8.2 Inspection 47 8.3 Repairs to cracks . 47 8.4 Repair of hollow or detached areas . 47 8.5 Overcoming unsatisfactory ap
26、pearance. 48 8.6 Overcoming water penetration . 49 Annex A (informative) Example on the selection of site mixed prescribed renders mixed in accordance with background type . 50 A.1 General . 50 A.2 Strong mixes . 50 A.3 Moderately strong mixes . 50 A.4 Weak mixes . 50 Annex B (informative) Restorati
27、on of renders on old and historic buildings . 51 B.1 General . 51 B.2 Preliminary investigations 51 B.3 Preparatory work . 53 B.4 Restoration systems and measures . 53 B.5 Design . 54 B.6 Application 54 Annex C (informative) Examples of products for reinforcement, carrier and beads 56 C.1 General .
28、56 C.2 Figures 56 Annex D (informative) Examples of types of finish . 60 Bibliography . 61 BS EN 13914-1:2016EN 13914-1:2016 (E)BS EN 13914-1:2016EN 13914-1:2016 (E) 4 European foreword This document (EN 13914-1:2016) has been prepared by Technical Committee CEN/TC 125 “Masonry”, the secretariat of
29、which is held by BSI. 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 September 2016, and conflicting national standards shall be withdrawn at the latest by September 2016. Attention is drawn to t
30、he 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 13914-1:2005. The first draft of this document was prepared by the European Union
31、 of Contractors of Plastering, Dry Lining, Stucco and Related Activities (UEEP) at the request of the CEN Technical Sector Board (Resolution No. BTS1/56/1991). This document gives requirements and recommendations for building details, design and materials considerations, the selection of mixes and t
32、he application of renders based on cement, lime or organic binders for use on external backgrounds. NOTE The term rendering mortar is used in the European Standard product specification EN 998-1, but to reflect common usage in relation to this document and for ease of reference the term render (noun
33、) has been used. A rendered finish may be applied to a variety of backgrounds, either to improve resistance to rain penetration and weathering and/or for aesthetic reasons. For the purposes of this document (except where stated in relation to a specific product standard) the term strength should be
34、considered in terms of relative strengths between different types of backgrounds compared with the nominal strengths of prescribed render mixes. Although it may be possible to consider this in terms of compressive strength, this standard deals with aspects of a craft as opposed to design calculation
35、s. Therefore strength is not considered in terms of numerical values derived from testing. Similar considerations also apply to terms such as movement, absorbency and permeability etc. used in this document. This document refers only to the technical suitability of materials and/or procedures. Durin
36、g the application the user will need to observe any legal obligations relating to health and safety at any stage. Because this document is a code-like document as opposed to the more conventional European product standard, it is appropriate to mention that, as with product standards, the use of the
37、verbal form shall denotes a requirement for which verification of compliance has to be able to be demonstrated. Recommendations are denoted by the verbal form should and should be followed unless there is a justifiable reason for not doing so. It is not the function of this standard to assign respon
38、sibility for the design and application of any work or actions mentioned within to any specific party. Such responsibility is a matter for other documentation associated with the work, e.g. the contract. BS EN 13914-1:2016EN 13914-1:2016 (E) 5 It has been assumed in the drafting of this document tha
39、t the application of its provisions is entrusted to appropriately qualified and experienced people, for whose guidance it has been prepared. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standar
40、d: 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
41、, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 13914-1:2016EN 13914-1:2016 (E)BS EN 13914-1:2016EN 13914-1:2016 (E) 4 European foreword This document (EN 13914-1:2016) has been prepared by Technical Committee CEN/TC 125 “Masonry”, the secretariat of which is held by BSI. This European S
42、tandard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2016, and conflicting national standards shall be withdrawn at the latest by September 2016. Attention is drawn to the possibility that some of the eleme
43、nts 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 13914-1:2005. The first draft of this document was prepared by the European Union of Contractors of Plastering, Dry Li
44、ning, Stucco and Related Activities (UEEP) at the request of the CEN Technical Sector Board (Resolution No. BTS1/56/1991). This document gives requirements and recommendations for building details, design and materials considerations, the selection of mixes and the application of renders based on ce
45、ment, lime or organic binders for use on external backgrounds. NOTE The term rendering mortar is used in the European Standard product specification EN 998-1, but to reflect common usage in relation to this document and for ease of reference the term render (noun) has been used. A rendered finish ma
46、y be applied to a variety of backgrounds, either to improve resistance to rain penetration and weathering and/or for aesthetic reasons. For the purposes of this document (except where stated in relation to a specific product standard) the term strength should be considered in terms of relative stren
47、gths between different types of backgrounds compared with the nominal strengths of prescribed render mixes. Although it may be possible to consider this in terms of compressive strength, this standard deals with aspects of a craft as opposed to design calculations. Therefore strength is not consider
48、ed in terms of numerical values derived from testing. Similar considerations also apply to terms such as movement, absorbency and permeability etc. used in this document. This document refers only to the technical suitability of materials and/or procedures. During the application the user will need
49、to observe any legal obligations relating to health and safety at any stage. Because this document is a code-like document as opposed to the more conventional European product standard, it is appropriate to mention that, as with product standards, the use of the verbal form shall denotes a requirement for which verification of compliance has to be able to be demonstrated. Recommendations are denoted by the verbal form should and should be followed unless there is a justifiable reason for not doing so. It is not the function of this stan
