ISO INTERNATIONAL STANDARD 15927-3 First edition 2009-03-15 Hygrothermal performance of buildings Calculation and presentation of climatic data - Part 3: Calculation of a driving rain index for vertical surfaces from hourly wind and rain data Performance hygrothermique des batiments Calcul et présentation desdonneesclimatiques Partie 3: Calcul d'un indice de pluie battante pour surfaces verticales a partir de données horaires de vent et de pluie Reference number ISO 15927-3:2009(E) @ ISO 2009 Not for Resale ISO 15927-3:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHTPROTECTED DOCUMENT @ ISO2009 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either isO at the address below or IsO's memberbody in the country of the requester. ISO copyright office Case postale 56. CH-1211Geneva 20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ Iso 2009 - All rights reserved I without license from IHS Not for Resale ISO 15927-3:2009(E) Contents Page Foreword. iv Introduction 1 Scope 2 Terms, definitions, symbols and units .... 2 3 Calculation of airfield indices from hourly wind and rain data. 4 Estimation of the effect of driving rain from average wind and present weather code for rain.... 5 Calculation of wall indices.. 5 Annex A (informative) Limits to the validity of the calculated indices . 11 Annex B (informative) The nature of a "spell" of driving rain . Annex C (informative) The procedure for generating the driving-rain maps. Annex D (informative) Comparison of methods specified in Clauses 3 and 4 . 15 Bibliography ii from IHS Not for Resi