EN 12865:2001

Hygrothermal performance of building components and building elements - Determination of the resistance of external wall systems to driving rain under pulsating air pressure

This standard specifies a general method for assessing the driving rain resistance of wall systems through determining the water tightness of wall systems under pulsating air pressure.

Wärme- und feuchteschutztechnisches Verhaltens von Bauteilen - Bestimmung des Widerstandes des Außenwandsystems gegen Schlagregen bei pulsierendem Luftdruck

Diese Norm legt ein allgemeines Verfahren zur Beurteilung des Schlagregenwiderstandes von Wandsystemen durch Bestimmung der Wasserdichtheit der Wandsysteme oder dessen Teilen bei pulsierendem Luftdruck fest.

Performance hygrothermique des composants et parois de bâtiments - Détermination de la résistance à la pluie battante des systèmes de murs extérieurs sous pression d'air pulsatoire

La présente norme définit une méthode générale destinée à évaluer la résistance des parois à la pluie battante en déterminant l'étanchéité des parois ou parties de parois sous pression d'air pulsé.

Higrotermalno obnašanje sestavnih delov stavb in elementov stavb – Ugotavljanje upora zunanjega zaščitnega sloja stene proti dežju pri spreminjajočem se tlaku zraka

General Information

• Status: Published
• Publication Date: 20-Mar-2001
• Withdrawal Date: 29-Sep-2001
• ICS: 91.120.30 - Waterproofing
• Technical Committee: CEN/TC 89 - Thermal performance of buildings and building components
• Drafting Committee: CEN/TC 89/WG 10 - Moisture
• Current Stage: 9020 - Submission to 2 Year Review Enquiry - Review Enquiry
• Start Date: 15-Jan-2024
• Completion Date: 15-Jan-2024
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/BC/CEN/91/4 - CPD: Thermal insulation
• Ref Project: SIST EN 12865:2002 - Hygrothermal performance of building components and building elements - Determination of the resistance of external wall systems to driving rain under pulsating air pressure

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.]UDNDWärme- und feuchteschutztechnisches Verhaltens von Bauteilen - Bestimmung des Widerstandes des Außenwandsystems gegen Schlagregen bei pulsierendem LuftdruckPerformance hygrothermique des composants et parois de bâtiments - Détermination de la résistance a la pluie battante des systemes de murs extérieurs sous pression d'air pulsatoireHygrothermal performance of building components and building elements - Determination of the resistance of external wall systems to driving rain under pulsating air pressure91.120.30WaterproofingICS:Ta slovenski standard je istoveten z:EN 12865:2001SIST EN 12865:2002en01-marec-2002SIST EN 12865:2002SLOVENSKI
STANDARD



SIST EN 12865:2002



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12865March 2001ICS 91.120.30English versionHygrothermal performance of building components and buildingelements - Determination of the resistance of external wallsystems to driving rain under pulsating air pressurePerformance hygrothermique des composants et parois debâtiments - Détermination de la résistance à la pluiebattante des systèmes de murs extérieurs sous pressiond'air pulsatoireWärme- und feuchteschutztechnisches Verhaltens vonBauteilen - Bestimmung des Widerstandes desAußenwandsystems gegen Schlagregen bei pulsierendemLuftdruckThis European Standard was approved by CEN on 29 December 2000.CEN members are bound to comply with the CEN/CENELEC Internal Regulations 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 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12865:2001 ESIST EN 12865:2002



Page 2EN 12865:2001ContentsPageForeword3Introduction31Scope42Terms and definitions43Principle54Apparatus55Test specimens66Procedure77Expression of results88Accuracy99Test report9Annex A
(informative) Example of water spraying system11SIST EN 12865:2002



Page 3EN 12865:2001ForewordThis European Standard has been prepared by Technical Committee CEN/TC 89 "Thermalperformance of buildings and building components", the secretariat of which is held by SIS.This European Standard shall be given the status of a national standard, either by publicationof an identical text or by endorsement, at the latest by September 2001, and conflictingnational standards shall be withdrawn at the latest by September 2001.According to the CEN/CENELEC Internal Regulations, the national standards organizationsof the following countries are bound to implement this European Standard: Austria, Belgium,Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the UnitedKingdom.This standard is one of a series of standards which specify test methods for the thermal andmoisture related properties of buildings, building components, building products and buildingmaterials.Annex A is informative.IntroductionDriving rain is often the cause of building damage due to the penetration of wind driven raininto or through external wall elements. 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 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 penetrating 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 rain and allow drying during the following
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