ISO INTERNATIONAL STANDARD 52018-1 First edition 2017-06 Energy performance of buildings Indicators for partial EPB requirements related to thermal energy balance and fabric features - Part 1: Overview of options Performance énergétique des batiments - Indicateurs pour des exigences PEB partielles liées aux caracteristiques du bilan énergétique thermique et du bati- Partie 1: Apercu des options Reference number IS0 52018-1:2017(E) os1 International Organization for Standardization @ IS0 2017 HEJIANG INST OF STANDARDIZATION C1 5956617 ed without license from IHS IS0 52018-1:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS02017,PublishedinSwitzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel.+41 22 749 0111 Fax+41227490947 [email protected] www.iso.org Intenationai br PrganizationforStandardization icensee-ZHEJIANG INST OF STANDARDIZRoISQ s1.7 - All rights reserved I by IHS unde Not for Resale, 2017/9/12 02:41:32 etworking permitted without license from IHS IS0 52018-1:2017(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms and definitions .2 3.1 Building. .2 3.2 Indoor and outdoor conditions 3.3 Technical building systems .6 3.4 Energy. .7 3.5 Energy performance. .7 3.6 Building heat transfer, heat gains and recoverable system thermal losses ..8 4 Symbols and subscripts .10 4.1 Symbols. ..10 4.2 Subscripts .10 5 Description of this document. ..11 5.1 General. .11 5.2 Brief overview of this document .12 5.3 Selection criteria between the possible options .12 5.4 Input and output data. ..12 6 Mix of EPB features with requirements .13 7 Summer thermal comfort. ..13 8 Winter thermal comfort. ..14 9 Energy need for heating or variants ..14 10 Energyneed forcooling,orvariants ..15 11 Combination of"needs" ..15 12 Overall thermal insulation of the thermal envelope. ..15 13 Thermal insulation of individual elements of the thermal envelope ..15 14 Thermal bridges ..16 15 Window energy performances. ..17 16 Airtightness ofthe thermal envelope ..17 17 Solar control ..18 18 Other requirements ..18 19 Quality control ..18 20 Compliance check ..18 Annex A (normative) Input and method selection data sheet - Template ..20 Annex B (informative) Input and method selection data sheet - Default choices ..29 Annex C (normative) Regional references in line with Iso Global Relevance Policy ..42 Bibliography ..43 iii =ZHEJIANG INST OF STANDARDIZATION C1 5956617 d without license from IHS