ISO 17772-1:2017

INTERNATIONAL ISO
STANDARD 17772-1
First edition
2017-06
Energy performance of buildings —
Indoor environmental quality —
Part 1:
Indoor environmental input
parameters for the design and
assessment of energy performance of
buildings
Performance énergétique des bâtiments — Qualité de
l’environnement intérieur —
Partie 1: Paramètres d’entrée de l’environnement intérieur pour
la conception et l’évaluation de la performance énergétique des
bâtiments
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
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ii © ISO 2017 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviations . 5
4.1 Symbols . 5
4.2 Abbreviations . 6
5 Interactions with other standards . 6
6 Design input parameters for design of buildings and sizing of heating, cooling,
ventilation and lighting systems . 6
6.1 General . 6
6.2 Thermal environment . 7
6.2.1 Heated and/or mechanically cooled buildings . 7
6.2.2 Buildings without mechanical cooling . 7
6.2.3 Increased air velocity . 8
6.3 Design for indoor air quality (ventilation rates). 8
6.3.1 General. 8
6.3.2 Methods . 9
6.3.3 Non-residential buildings .11
6.3.4 Residential buildings .11
6.3.5 Access to operable windows .12
6.3.6 Filtration and air cleaning .12
6.4 Humidity .12
6.5 Lighting .12
6.5.1 General.12
6.5.2 Non-residential buildings .13
6.5.3 Residential buildings .13
6.6 Noise .13
7 Indoor environment parameters for energy calculation .14
7.1 General .14
7.2 Thermal environment .14
7.2.1 Seasonal and monthly calculations .14
7.2.2 Hourly calculations .14
7.3 Indoor air quality and ventilation .14
7.3.1 General.14
7.4 Humidity .15
7.5 Lighting .15
7.5.1 Non-residential buildings .15
7.5.2 Residential buildings .15
Annex A (normative) Recommended criteria for the thermal environment .16
Annex B (normative) Basis for the criteria for indoor air quality and ventilation rates .22
Annex C (normative) How to define low and very low polluting buildings .27
Annex D (normative) Examples of criteria for lighting .28
Annex E (normative) Indoor system noise criteria of some spaces and buildings.29
Annex F (normative) Criteria for substances in indoor air .30
Annex G (normative) Occupant schedules for energy calculations .31
Annex H (informative) Default criteria for the thermal environment .32
Annex I (informative) Basis for the criteria for indoor air quality and ventilation rates .38
Annex J (informative) Example on how to define low and very low polluting buildings .44
Annex K (informative) Examples of criteria for lighting .45
Annex L (informative) Indoor system noise criteria of some spaces and buildings .46
Annex M (informative) WHO health-based criteria for indoor air .47
Annex N (informative) Occupants schedules for energy calculations .48
Annex O (informative) Occupants schedules for energy calculations .50
Bibliography .58
iv © ISO 2017 – All rights reserved

Foreword
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different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2. www .iso .org/ directives
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URL: http:// www .iso .org/ iso/ foreword .html
This document was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use
in the built environment.
A list of all the parts in the ISO 17772 series can be found on the ISO website.
Introduction
Energy consumption of buildings depends significantly on the criteria used for the indoor environment
(heating, cooling, ventilation and lighting) and building (including systems) design and operation.
Indoor environment also affects health, productivity and comfort of the occupants. Recent studies
have shown that costs of poor indoor environment for the employer, the building owner and for society,
as a whole are often considerable higher than the cost of the energy used in the same building. It has
also been shown that good indoor environmental quality can improve overall work and learning
performance and reduce absenteeism. In addition uncomfortable occupants are likely to take actions
to make themselves comfortable which may have energy implications. There is therefore a need for
specifying criteria for the indoor environment for design and energy calculations for buildings and
building service systems.
There exist other national and International Standards, and technical reports, which specify criteria for
[2]
thermal comfort (ISO 7730 ). These documents do specify different types and categories of criteria,
which may have a significant influence on the energy demand. For the thermal environment criteria
for the heating season (cold/winter) and cooling season (warm/summer) are
...