1、ICS 91.120.30Wrme- und feuchteschutztechnisches Verhalten von Bauteilen Bestimmung des Widerstandes desAuenwandsystems gegen Schlagregen bei pulsierendem LuftdruckEuropean Standard EN 12865 : 2001 has the status of a DIN Standard.A comma is used as the decimal marker.National forewordThis standard h
2、as been prepared by CEN/TC 89 Thermal performance of buildings and buildingcomponents (Secretariat: Sweden).The responsible German body involved in its preparation was the Normenausschuss Bauwesen (Building andCivil Engineering Standards Committee), Technical Committee 00.89.00 Wrmeschutz.National A
3、nnex NAOther relevant standardsDIN EN 1027 Windows and doors Watertightness Test methodDIN EN 12155 Curtain walling Watertightness Laboratory test under static pressureRef. No. DIN EN 12865 : 2001-07English price group 06 Sales No. 110611.01DEUTSCHE NORM July 2001EN 12865Continued overleaf.EN compri
4、ses 10 pages. No part of this standard may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).Hygrothermal performance of building components andbuild
5、ing elementsDetermination of the resistance of external wall systemsto driving rain under pulsating air pressureEnglish version of DIN EN 12865English versionICS 91.120.30Descriptors:Hygrothermal performance of building components and building elementsDetermination of the resistance of external wall
6、systems to driving rain under pulsating air pressure 2001. CEN All rights of exploitation in any form and by any meansreserved worldwide for CEN national members.Ref. No. EN 12865 : 2001 EWrme- und feuchteschutztechnischesVerhalten von Bauteilen Bestimmungdes Widerstandes des Auenwand-systems gegen
7、Schlagregen beipulsierendem LuftdruckThis European Standard was approved by CEN on 2000-12-29.CEN members are bound to comply with the CEN/CENELEC Internal Regulationswhich stipulate the conditions for giving this European Standard the status of anational standard without any alteration.Up-to-date l
8、ists and bibliographical references concerning such national stand-ards may be obtained on application to the Management Centre or to anyCEN member.The European Standards exist in three official versions (English, French, German).A version in any other language made by translation under the responsi
9、bility of aCEN member into its own language and notified to the Management Centre hasthe same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, the CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,Luxembourg, the Nethe
10、rlands, Norway, Portugal, Spain, Sweden, Switzerland,and the United Kingdom.EN 12865March 2001Management Centre: rue de Stassart 36, B-1050 BrusselsEuropean Committee for StandardizationComit Europen de NormalisationEuropisches Komitee fr Normung|Performance hygrothermique descomposants et parois de
11、 btiments Dtermination de la rsistance lapluie battante des systmes de mursextrieurs sous pression dairpulsatoirePage 2EN 12865 : 2001Page3344556789910Page 3EN 12865 : 2001Driving rain is often the cause of building damage due to the penetration of wind driven raininto or through external wall eleme
12、nts. The amount of driving rain impinging on a local partof an external wall surface depends on the rainfall and wind speed occurring simultaneously,the exposure of the building and the architectural/structural details of the surface. Nationalstandards define areas with different classes of driving
13、rain severity which may be used todetermine the protection needed against driving rain.Protection can be achieved by measures such as:a) architectural/structural design to reduce the amount of driving rain (e.g. roofoverhangs);b) ventilated or unventilated air space behind cladding (any water penetr
14、ating thecladding flows down on the internal face of the cladding and is drained out at specifiedopenings; an air flow in a ventilated air space due to stack effects accelerates thedrying);c) rendering on external wall surfaces with appropriate properties to absorb or repel thewater during driving r
15、ain and allow drying during the following drying period;d) proper detailing to prevent water ingress around openings;e) providing a defined water tightness of the wall element including existing joints so asto limit water penetration to an acceptable level.This standard specifies a test method to determine the resistance of wall elements to drivingrain, thus mainly covering measure e).Page 4EN 12865 : 2001Page 5EN 12865 : 2001Page 6EN 12865 : 2001Page 7EN 12865 : 2001Page 8EN 12865 : 2001Page 9EN 12865 : 2001Page 10EN 12865 : 2001
