EN 17037:2018+A1:2021

Daylight in buildings

This document specifies elements for achieving, by means of natural light, an adequate subjective impression of lightness indoors, and for providing an adequate view out. In addition, recommendations for the duration of sunshine exposure within occupied rooms are given.
This document gives information on how to use daylighting to provide lighting within interiors, and how to limit glare. This document defines metrics used for the evaluation of daylighting conditions and gives principles of calculation and verification. These principles allow to address the issue of variability of daylight over the days and the year.
This document applies to all spaces that may be regularly occupied by people for extended periods except where daylighting is contrary to the nature and role of the actual work done.
The specification of lighting requirements for humans in indoor work places including visual tasks are given in EN 12464-1 and are not part of this document.

Tageslicht in Gebäuden

Dieses Dokument legt Grundlagen zur Erreichung eines hinreichenden subjektiven Helligkeitseindrucks in Innen¬räumen durch Tageslicht und einer ausreichenden Aussicht fest. Darüber hinaus enthält das Dokument Empfehlungen für die Dauer der Besonnung in Aufenthaltsräumen.
Dieses Dokument bietet Informationen zur Nutzung des Tageslichts für die Beleuchtung von Innenräumen und zur Beschränkung von Blendung. Darüber hinaus legt dieses Dokument Messgrößen für die Bewertung der Tageslichtbeleuchtungsbedingungen fest und enthält Grundsätze für die Berechnung und Verifizierung. Diese Grundsätze ermöglichen es, die Variabilität des Tageslichts zu verschiedenen Tages  und Jahreszeiten zu berücksichtigen.
Dieses Dokument gilt für alle regelmäßig und über längere Zeit von Menschen genutzten Räume, mit Ausnahme von Räumen, in denen eine Tageslichtbeleuchtung der Nutzung des Raumes entgegensteht.
Die Festlegungen der Beleuchtungsanforderungen für Personen an Arbeitsplätzen in Innenräumen einschließlich visueller Aufgaben sind in EN 12464 1 enthalten und nicht Teil dieses Dokuments.

Lumière naturelle dans les bâtiments

Le présent document spécifie les critères permettant d’obtenir, par le biais de la lumière naturelle, une impression subjective adéquate de clarté à l’intérieur et d’assurer une vue adéquate sur l’extérieur. En outre, des recommandations sont données concernant la durée d’exposition à l’ensoleillement direct à l’intérieur des locaux (ou pièces) occupés.
Le présent document fournit des informations sur la façon d’exploiter l’éclairage naturel pour assurer l’éclairage en intérieur, ainsi que les moyens de réduire l’éblouissement. Le présent document définit les systèmes de mesure utilisés pour évaluer les conditions d’éclairage naturel et fournit les principes de calcul et de vérification. Ces principes permettent de traiter de l’aspect de variabilité de la lumière naturelle au fil des jours et de l’année.
Le présent document s’applique à tous les espaces pouvant être occupés par des personnes de façon régulière et sur de longues périodes, à l’exception des espaces dans lesquels l’éclairage naturel est en inadéquation avec la nature et la fonction des travaux réalisés.
Les exigences en matière d’éclairage vis-à-vis des personnes occupant des lieux de travail intérieurs, y compris les tâches visuelles, sont spécifiées dans l’EN 12464 1 et ne font pas partie du présent document.

Dnevna svetloba v stavbah

General Information

• Status: Published
• Publication Date: 21-Dec-2021
• Withdrawal Date: 29-Jun-2022
• ICS: 91.160.01 - Lighting in general
• Technical Committee: CEN/TC 169 - Lighting applications
• Drafting Committee: CEN/TC 169/WG 11 - Daylight
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 22-Dec-2021
• Completion Date: 22-Dec-2021
• Ref Project: SIST EN 17037:2019+A1:2023 - Daylight in buildings

Relations

• Merged From: EN 17037:2018 - Daylight in buildings
• Effective Date: 19-Jan-2023
• Merged From: EN 17037:2018/AC:2021 - Daylight in buildings
• Effective Date: 18-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2023
Dnevna svetloba v stavbah
Daylight in buildings
Tageslicht in Gebäuden
Lumière naturelle dans les bâtiments
Ta slovenski standard je istoveten z: EN 17037:2018+A1:2021
ICS:
91.160.01 Razsvetljava na splošno Lighting in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 17037:2018+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2021
EUROPÄISCHE NORM
ICS 91.160.01 Supersedes EN 17037:2018
English Version
Daylight in buildings
Lumière naturelle dans les bâtiments Tageslicht in Gebäuden
This European Standard was approved by CEN on 29 July 2018 and includes Corrigendum 1 issued by CEN on 13 October 2021
and Amendment 1 approved by CEN on 24 August 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC 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
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, 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: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17037:2018+A1:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 5
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Symbols and abbreviations . 10
5 Assessment of daylight in interior spaces . 12
5.1 Daylight Provision . 12
5.1.1 General . 12
5.1.2 Criteria for daylight provision. 12
5.1.3 Daylight Provision Calculation Methods . 13
5.1.4 Verification of daylight provision . 13
5.2 Assessment for view out . 13
5.2.1 General . 13
5.2.2 Criteria for view out . 14
5.2.3 Verification of view out . 14
5.3 Exposure to sunlight . 14
5.3.1 General . 14
5.3.2 Criteria for exposure to sunlight . 14
5.3.3 Verification of sunlight duration . 14
5.4 Protection from glare . 15
5.4.1 General . 15
5.4.2 Criteria for protection from glare . 15
5.4.3 Verification for protection from glare . 15
Annex A (informative) Recommendations . 16
A.1 General . 16
A.2 Recommendations for daylight provision in a space. 16
A.3 Recommendations for view . 20
A.4 Recommendation for exposure to sunlight . 21
A.5 Recommendation for glare protection . 21
Annex B (informative) Daylight . 23
B.1 General . 23
B.2 Calculation grids . 23
B.3 Calculation methods . 24
B.3.1 General . 24
B.3.2 Calculation method using daylight factor (method 1) . 24
B.3.3 Calculation method using illuminance level (method 2) . 25
B.4 Daylight availability . 25
B.5 Validation of actual daylighting performance . 26
Annex C (informative) View out . 27
C.1 General . 27
C.2 Quality of view out . 27
C.3 Width of view out . 27
C.4 Verification of view out . 32
C.4.1 Simplified verification method . 32
C.4.2 Advanced verification method . 33
Annex D (informative) Exposure to sunlight . 36
D.1 General . 36
D.2 Principle of assessment of hours of sunlight . 36
D.3 Method using software . 38
D.4 Method using manual geometric constructions . 40
D.5 Determination of the position of the sun in the sky . 40
D.6 Evaluation rules for sunlight duration . 45
D.7 Sunlight duration in the reference point P . 47
D.7.1 Example . 47
D.7.2 Calculation . 47
D.7.3 Result . 47
D.8 On-site verification of duration of exposure to sunlight . 49
Annex E (informative) Glare . 50
E.1 General . 50
E.2 Daylight Glare Probability . 50
E.3 Annual evaluation . 51
E.3.1 General . 51
E.3.2 Simplified annual glare evaluation . 52
E.3.2.1 General . 52
E.3.2.2 Solar protection device being opaque in the extended and close position . 53
E.3.2.3 Solar protection device where the curtain is made of textile, film or perforated
opaque material. 53
E.3.2.4 Non-diffusing glazing device with a low variable light transmittance (e.g.
electrochromic glazing) . 56
E.3.2.5 Sunshine zones . 59
E.4 Reflections or veiling glare . 60
E.5 Verification of the glare protection capability of shadings . 60
Annex F (informative) A–deviations . 63
Annex G (normative) !Special national conditions" . 64
Bibliography . 65

European foreword
This document (EN 17037:2018+A1:2021) has been prepared by Technical Committee CEN/TC 169
“Light and Lighting”, the secretariat of which is held by DIN.
This document includes the corrigendum EN 17037:2018/AC:2021 issued by CEN on 13 October 2021,
th
which cor
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