CEN ISO/TR 52018-2:2017

SLOVENSKI STANDARD
01-september-2017
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Energy performance of buildings - Indicators for partial EPB requirements related to
thermal energy balance and fabric features - Part 2: Explanation and justification of ISO
52018-1 (ISO/TR 52018-2:2017)
Performance énergétique des bâtiments - Indicateurs et exigences de PEB partielle liées
aux éléments du bilan énergétique thermique et aux éléments d'enveloppe - Partie 2:
Explication et justification de l’ISO 52018-1 (ISO/TR 52018-2:2017)
Ta slovenski standard je istoveten z: CEN ISO/TR 52018-2:2017
ICS:
27.015 (QHUJLMVNDXþLQNRYLWRVW Energy efficiency. Energy
2KUDQMDQMHHQHUJLMHQD conservation in general
VSORãQR
91.120.10 Toplotna izolacija stavb Thermal insulation of
buildings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN ISO/TR 52018-2
TECHNICAL REPORT
RAPPORT TECHNIQUE
July 2017
TECHNISCHER BERICHT
ICS 91.120.10
English Version
Energy performance of buildings - Indicators for partial
EPB requirements related to thermal energy balance and
fabric features - Part 2: Explanation and justification of ISO
52018-1 (ISO/TR 52018-2:2017)
Performance énergétique des bâtiments - Indicateurs
pour des exigences PEB partielles liées aux
caractéristiques du bilan énergétique thermique et du
bâti - Partie 2: Explication et justification de l'ISO
52018-1 (ISO/TR 52018-2:2017)
This Technical Report was approved by CEN on 24 February 2017. It has been drawn up by the Technical Committee CEN/TC 89.

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, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN ISO/TR 52018-2:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (CEN ISO/TR 52018-2:2017) has been prepared by Technical Committee ISO/TC 163
"Thermal performance and energy use in the built environment" in collaboration with Technical
Committee CEN/TC 89 “Thermal performance of buildings and building components” the secretariat of
which is held by SIS.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
This document is part of the set of standards and accompanying technical reports on the energy
performance of buildings and has been prepared under a mandate given to CEN by the European
Commission and the European Free Trade Association (Mandate M/480, see reference [EF3] below).
Directive 2010/31/EU recasting the Directive 2002/91/EC on energy performance of buildings (EPBD,
[EF4]) promotes the improvement of the energy performance of buildings within the European Union,
taking into account all types of energy uses (heating, lighting, cooling, air conditioning, ventilation) and
outdoor climatic and local conditions, as well as indoor climate requirements and cost effectiveness
(Article 1).
The directive requires Member States to adopt measures and tools to achieve the prudent and rational
use of energy resources. In order to achieve those goals, the EPBD requires increasing energy efficiency
and the enhanced use of renewable energies in both new and existing buildings. One tool for this is the
application by Member States of minimum requirements on the energy performance of new buildings
and for existing buildings that are subject to major renovation, as well as for minimum performance
requirements for the building envelope if energy-relevant parts are replaced or retrofitted. Other tools
are energy certification of buildings, inspection of boilers and air-conditioning systems.
The use of European standards increases the accessibility, transparency and objectivity of the energy
performance assessment in the Member States facilitating the comparison of best practices and
supporting the internal market for construction products. The use of EPB-standards for calculating
energy performance, as well as for energy performance certification and the inspection of heating
systems and boilers, ventilation and air-conditioning systems will reduce costs compared to developing
different standards at national level.
The first mandate to CEN to develop a set of CEN EPBD standards (M/343, [EF2]), to support the first
edition of the EPBD [EF1] resulted in the successful publication of all EPBD related CEN standards in
2007-2008.
The mandate M/480 was issued to review the mandate 343, as the recast of the EPBD raised the need to
revisit the standards and reformulate and add standards so that they become on the one hand
unambiguous and compatible, and on the other hand provide a clear and explicit overview of the
choices, boundary conditions and input data that need to be defined at national or regional level. Such
national or regional choices remain necessary, due to differences in climate, culture & building
tradition, policy and legal frameworks. Consequently, the set of CEN-EPBD standards published in
2007-2008 had to be improved and expanded on the basis of the recast of the EPBD.
The EPB standards are flexible enough to allow for necessary national and regional differentiation and
facilitate Member States implementation and the setting of requirements by the Member States.
Further target groups are users of the voluntary common European Union certification scheme for the
energy performance of non-residential buildings (EPBD art.11.9) and any other regional (e.g. Pan
European) parties wanting to motivate their assumptions by classifying the building energy
performance for a dedicated building stock.
References:
[EF1] EPBD, Directive 2002/91/EC of the European Parliament and of the Council of
16 December 2002 on the energy performance of buildings
[EF2] Mandate M/343 Mandate to CEN, CENELEC and ETSI for the elaboration and adoption of
standards for a methodology calculating the integrated energy performance of buildings and estimating
the environmental impact, in accordance with the terms set forth in Directive 2002/91/EC; 30 January
[EF3] Mandate M/480, Mandate to CEN, CENELEC and ETSI for the elaboration and adoption of
standards for a methodology calculating the integrated energy performance of buildings and promoting
the energy efficiency of buildings, in accordance with the terms set in the recast of the Directive on the
energy performance of buildings (2010/31/EU) of 14th December 2010
[EF4] EPBD, Recast of the Directive on the energy performance of buildings (2010/31/EU) of 14th
December 2010
Endorsement notice
The text of ISO/TR 52018-2:2017 has been approved by CEN as CEN ISO/TR 52018-2:2017 without any
modification.
TECHNICAL ISO/TR
REPORT 52018-2
First edition
2017-06
Energy performance of buildings —
Indicators for partial EPB
requirements related to thermal
energy balance and fabric features —
Part 2:
Explanation and justification of ISO
52018-1
Performance énergétique des bâtiments — Indicateurs pour
des exigences PEB partielles liées aux caractéristiques du bilan
énergétique thermique et du bâti —
Partie 2: Explication et justification de l’ISO 52018-1
Reference number
ISO/TR 52018-2:2017(E)
©
ISO 2017
ISO/TR 52018-2:2017(E)
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
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ii © ISO 2017 – All rights reserved

ISO/TR 52018-2:2017(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and subscripts . 1
5 General aspects . 2
6 Mix of EPB features with requirements . 3
7 Summer thermal comfort . 3
7.1 Motivation . 3
7.2 Points of attention . 3
7.3 Indicators . 5
7.4 Comparable economic strictness . 5
7.5 New construction/renovation . 6
7.6 Exceptions . 6
8 Winter thermal comfort . 6
9 Energy need for heating, or variants . 6
9.1 Motivation . 6
9.2 Indicators . 7
9.3 Comparable economic strictness . 8
9.4 New construction/renovation . 9
9.5 Exceptions . 9
10 Energy need for cooling, or variants . 9
11 Combination of “needs” . 9
12 Overall thermal insulation of the thermal envelope .
...