Water based surface embedded heating and cooling systems - Part 5: Determination of the thermal output for wall and ceiling heating and for floor, wall and ceiling cooling

The EN 1264 series gives guidelines for surface embedded heating and cooling systems installed in buildings, residential and non-residential (e.g. office, public, commercial and industrial buildings) and focuses on systems installed for the purpose of thermal comfort.
The EN 1264 series gives guidelines for water based heating and cooling systems embedded into the enclosure surfaces of the room to be heated or to be cooled. It also specifies the use of other heating media instead of water, as appropriate.
The EN 1264 series specifies standardized product characteristics by calculation and testing the thermal output of heating for technical specifications and certification. For the design, construction and operation of these systems, see EN 1264-3 and EN 1264-4 for the types A, B, C, D, H, I and J. For the types E, F and G, see the EN ISO 11855 series.
The systems specified in the EN 1264 series are adjoined to the structural base of the enclosure surfaces of the building, mounted directly or with fixing supports. The EN 1264 series does not specify ceiling systems mounted in a suspended ceiling with a designed open air gap between the system and the building structure which allows the thermally induced circulation of the air. The thermal output of these systems can be determined according to the EN 14037 series and EN 14240.
EN 1264-5 specifies the recalculation of values determined in EN 1264-2 for the system in question. It enables the conversion of the calculation and measurement results of EN 1264-2 into results for other surface orientations in the room, i.e. for ceiling and wall heating, as well as for the application as cooling surfaces, i.e. for floor, ceiling and wall cooling. The test results of EN 1264-2 are the basis of all calculation, whether or not the system in question is used for heating or cooling application.

Raumflächenintegrierte Heiz- und Kühlsysteme mit Wasserdurchströmung - Teil 5: Bestimmung der Wärmeleistung von Wand- und Deckenheizung sowie Kühlleistung von Fußboden-, Wand- und Deckenkühlung

Die Normenreihe EN 1264 gibt Leitlinien für in Wohn- und anderen Gebäuden (z. B. Bürogebäuden, öffentlichen Gebäuden sowie Gewerbe- und Industriegebäuden) installierte raumflächenintegrierte Heiz  und Kühlsysteme und legt einen Schwerpunkt auf Systeme, die für den Zweck der thermischen Behaglichkeit installiert werden.
Die Normenreihe EN 1264 gibt Leitlinien für Heiz- und Kühlsysteme mit Wasserdurchströmung, die in die Raumumschließungsflächen des zu heizenden oder des zu kühlenden Raumes eingebettet sind. Sie legt ggf. auch die entsprechende Verwendung anderer Heizmittel als Wasser fest.
Die Normenreihe EN 1264 legt die Identifizierung standardisierter Produktmerkmale durch Berechnung und Prüfung der Wärmeleistung der Heizung für technische Spezifikationen und die Zertifizierung fest. Für das Design, den Bau und den Betrieb dieser Anlagen siehe EN 1264 3 und EN 1264 4 für die Typen A, B, C, D, H, I und J. Für die Typen E, F und G siehe Normenreihe EN ISO 11855.
Die in der Normenreihe EN 1264 festgelegten Systeme grenzen an den tragenden Untergrund der Umschließungsflächen des Gebäudes an und werden direkt oder mit Befestigungshalterungen angebracht. Die Normenreihe EN 1264 trifft keine Festlegungen für in abgehängten Decken montierte Deckensysteme mit einem auslegungsgemäßen offenen Luftspalt zwischen dem System und der Gebäudestruktur, der eine thermisch induzierte Umwälzung der Luft erlaubt. Die Wärmeleistung dieser Systeme kann nach der Normenreihe EN 14037 und EN 14240 bestimmt werden.
EN 1264 5 legt die Umrechnung von Werten fest, die in EN 1264 2 für das betreffende System bestimmt wurden. Sie ermöglicht die Umrechnung der Berechnungs- und Messergebnisse von EN 1264 2 in Ergebnisse für andere Oberflächenausrichtungen im Raum, d. h. für die Wand- und Deckenheizung, sowie für die Anwendung als Kühlflächen, d. h. für die Fußboden , Decken- und Wandkühlung. Daher sind die Prüfergebnisse von EN 1264 2 die Basis aller Berechnungen, unabhängig davon, ob das betreffende System für Heiz- oder für Kühlanwendungen eingesetzt wird.

Systèmes de surfaces chauffantes et rafraîchissantes hydrauliques intégrées - Partie 5 : Détermination de l'émission thermique des surfaces chauffantes et rafraîchissantes intégrées dans les sols, les plafonds et les murs

La série EN 1264 fournit des lignes directrices pour les systèmes de surfaces chauffantes et rafraîchissantes intégrées dans les bâtiments résidentiels et non résidentiels (par exemple, des bureaux, des bâtiments publics, commerciaux et industriels), et se concentre sur les systèmes installés à des fins de confort thermique.
La série EN 1264 fournit des lignes directrices pour les systèmes de surfaces chauffantes et rafraîchissantes intégrées dans les parois des pièces à chauffer ou à rafraîchir. Elle spécifie également l'utilisation de fluides caloporteurs autres que l'eau, le cas échéant.
La série EN 1264 spécifie les caractéristiques normalisées des produits en calculant et en mettant à l'essai l'émission thermique du chauffage pour les spécifications techniques et la certification. Pour la conception, la construction et le fonctionnement de ces systèmes, voir l'EN 1264-3 et l'EN 1264-4 pour les types A, B, C, D, H, I et J. Pour les types E, F et G, voir la série EN ISO 11855.
Les systèmes spécifiés dans la série EN 1264 sont fixés directement ou à l'aide de supports de fixation au plancher porteur des parois du bâtiment. La série EN 1264 ne spécifie pas les systèmes de plafond montés dans un plafond suspendu, dont l'entrefer ouvert conçu entre le système et la structure du bâtiment permet la circulation de l'air induite par la chaleur. L'émission thermique de ces systèmes peut être déterminée selon la série EN 14037 et l'EN 14240.
L'EN 1264-5 spécifie le recalcul des valeurs déterminées dans l'EN 1264-2 pour le système en question. Il permet de convertir les résultats de calcul et de mesure de l'EN 1264-2 en résultats pour des surfaces orientées différemment, telles que les plafonds et les murs chauffants, ainsi que pour les applications de surfaces rafraîchissantes, telles que les systèmes rafraîchissants par le sol, les plafonds ou les murs. Les résultats d'essais de l'EN 1264-2constituent la base de tous les calculs, que le système en question soit utilisé ou non pour des applications de chauffage ou de refroidissement.

Ploskovni sistemi za ogrevanje in hlajenje z vodo - 5. del: Določevanje oddaje toplote za stensko in stropno ogrevanje ter talno, stensko in stropno hlajenje

General Information

Status
Published
Publication Date
18-May-2021
Withdrawal Date
29-Nov-2021
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
19-May-2021
Due Date
15-Jul-2021
Completion Date
19-May-2021

Relations

Overview

EN 1264-5:2021 - part of the CEN EN 1264 series - covers the determination and recalculation of the thermal output of water‑based surface embedded heating and cooling systems when applied to walls, ceilings and floors. The standard specifies how to convert floor heating test and calculation results (from EN 1264-2:2021) into corresponding values for wall and ceiling heating and for floor, wall and ceiling cooling. It is intended for systems embedded in building enclosure surfaces for thermal comfort (residential and non‑residential).

Key topics and technical requirements

  • Recalculation method: Provides the calculation method that converts EN 1264-2 floor test results into thermal outputs for other surface orientations and cooling applications by accounting for changes in surface thermal resistance (ΔR) and an equivalent heat transmission coefficient (K).
  • Characteristic curves: Uses linear characteristic curves q = K · Δϑ to link specific thermal output q with the temperature difference Δϑ between medium and room (heating) or room and medium (cooling).
  • Standard conditions: Defines standard temperature differences used for ratings - 10 K for heating and 8 K for cooling - and specifies reporting for thermal resistances R = 0, 0.05, 0.10 and 0.15 m²·K/W.
  • Table A.1 and Annex B: Supplies additional thermal transfer resistance values and guidance on heat exchange coefficients for floor, wall and ceiling applications; clarifies that α values are for conversion purposes, not direct heat‑transfer calculation.
  • Test report content: Requires documentation of construction drawings, pipe spacings and cover thicknesses, and that results apply only to the tested construction; changes affecting thermal behavior require retesting.

Practical applications and users

  • Product manufacturers and testing laboratories: to rate and certify embedded heating/cooling products and generate standardized thermal output data.
  • HVAC designers and building engineers: to convert floor heating measurement data into design inputs for wall and ceiling heating/cooling and to select systems for comfort applications.
  • Specifiers, certification bodies and procurement teams: to compare system performance using a single, reproducible method.
  • Facilities managers and installers: to understand performance limits and to ensure installed systems match rated outputs.

Related standards

  • EN 1264-1 (definitions/symbols), EN 1264-2 (floor test methods), EN 1264-3 (dimensioning), EN 1264-4 (installation)
  • EN ISO 11855 (embedded radiant systems types E/F/G)
  • EN 14037 / EN 14240 (suspended ceilings and chilled ceilings)
  • EN 442-2 (analogy for radiator testing methods)

Keywords: EN 1264-5:2021, water based surface embedded heating and cooling systems, wall heating, ceiling heating, floor cooling, thermal output, EN 1264-2, calculation method, radiant heating and cooling, test report.

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EN 1264-5:2021
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Standards Content (Sample)


SLOVENSKI STANDARD
01-julij-2021
Nadomešča:
SIST EN 1264-5:2009
Ploskovni sistemi za ogrevanje in hlajenje z vodo - 5. del: Določevanje oddaje
toplote za stensko in stropno ogrevanje ter talno, stensko in stropno hlajenje
Water based surface embedded heating and cooling systems - Part 5: Determination of
the thermal output for wall and ceiling heating and for floor, wall and ceiling cooling
Raumflächenintegrierte Heiz- und Kühlsysteme mit Wasserdurchströmung - Teil 5:
Bestimmung der Wärmeleistung von Wand- und Deckenheizung sowie Kühlleistung von
Fußboden-, Wand- und Deckenkühlung
Systèmes de surfaces chauffantes et rafraîchissantes hydrauliques intégrées - Partie 5 :
Détermination de l'émission thermique des surfaces chauffantes et rafraîchissantes
intégrées dans les sols, les plafonds et les murs
Ta slovenski standard je istoveten z: EN 1264-5:2021
ICS:
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 1264-5
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2021
EUROPÄISCHE NORM
ICS 91.140.10 Supersedes EN 1264-5:2008
English Version
Water based surface embedded heating and cooling
systems - Part 5: Determination of the thermal output for
wall and ceiling heating and for floor, wall and ceiling
cooling
Systèmes de surfaces chauffantes et rafraîchissantes Raumflächenintegrierte Heiz- und Kühlsysteme mit
hydrauliques intégrées - Partie 5 : Détermination de Wasserdurchströmung - Teil 5: Bestimmung der
l'émission thermique des surfaces chauffantes et Wärmeleistung von Wand- und Deckenheizung sowie
rafraîchissantes intégrées dans les sols, les plafonds et Kühlleistung von Fußboden-, Wand- und
les murs Deckenkühlung
This European Standard was approved by CEN on 12 April 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 1264-5:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Calculation method . 6
5 Test report . 7
Annex A (normative) Figures and tables . 8
Annex B (informative) Explanations concerning the specification of the heat exchange
coefficients of Table A.1 . 10
Bibliography . 11
European foreword
This document (EN 1264-5:2021) has been prepared by Technical Committee CEN/TC 130 “Space
heating appliances without integral heat sources”, the secretariat of which is held by UNI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by November 2021, and conflicting national standards
shall be withdrawn at the latest by November 2021.
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 supersedes EN 1264-5:2008.
The main changes compared to the previous edition are listed below:
a) Modification of the Title;
b) Clarification of the Scope;
c) Improved wording, especially the term “prove method”.
EN 1264, Water based surface embedded heating and cooling systems, consists of the following parts:
— Part 1: Definitions and symbols;
— Part 2: Floor heating: Methods for the determination of the thermal output using calculations and
experimental tests;
— Part 3: Dimensioning;
— Part 4: Installation;
— Part 5: Determination of the thermal output for wall and ceiling heating and for floor, wall and ceiling
cooling.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: 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 the
United Kingdom.
Introduction
The EN 1264 series is based on the realization that in the field of commercial trade the thermal output
of heating and cooling systems represents the basis of rating. In order to be able to evaluate and
compare different heating and cooling systems, it is therefore necessary to refer to values determined
using one single, unambiguously defined method. The basis for doing so are the test methods for the
determination of the thermal output of floor heating systems specified in EN 1264-2. In analogy to
EN 442-2, Radiators and convectors — Part 2: Test methods and rating, this test method provides
characteristic partial load curves under defined boundary conditions as well as the characteristic
output of the system represented by the standard thermal output together with the associated standard
temperature difference between the heating medium and the room temperature.
1 Scope
The EN 1264 series gives guidelines for surface embedded heating and cooling systems installed in
buildings, residential and non-residential (e.g. office, public, commercial and industrial buildings) and
focuses on systems installed for the purpose of thermal comfort.
The EN 1264 series gives guidelines for water based heating and cooling systems embedded into the
enclosure surfaces of the room to be heated or to be cooled. It also specifies the use of other heating
media instead of water, as appropriate.
The EN 1264 series specifies standardized product characteristics by calculation and testing the
thermal output of heating for technical specifications and certification. For the design, construction and
operation of these systems, see EN 1264-3 and EN 1264-4 for the types A, B, C, D, H, I and J. For the
types E, F and G, see the EN ISO 11855 series.
The systems specified in the EN 1264 series are adjoined to the structural base of the enclosure
surfaces of the building, mounted directly or with fixing supports. The EN 1264 series does not specify
ceiling systems mounted in a suspended ceiling with a designed open air gap between the system and
the building structure which allows the thermally induced circulation of the air. The thermal output of
these systems can be determined according to the EN 14037 series and EN 14240.
EN 1264-5 specifies the recalculation of values determined in EN 1264-2 for the system in question. It
enables the conversion of the calculation and measurement results of EN 1264-2 into results for other
surface orientations in the room, i.e. for ceiling and wall heating, as well as for
...

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Frequently Asked Questions

EN 1264-5:2021 is a standard published by the European Committee for Standardization (CEN). Its full title is "Water based surface embedded heating and cooling systems - Part 5: Determination of the thermal output for wall and ceiling heating and for floor, wall and ceiling cooling". This standard covers: The EN 1264 series gives guidelines for surface embedded heating and cooling systems installed in buildings, residential and non-residential (e.g. office, public, commercial and industrial buildings) and focuses on systems installed for the purpose of thermal comfort. The EN 1264 series gives guidelines for water based heating and cooling systems embedded into the enclosure surfaces of the room to be heated or to be cooled. It also specifies the use of other heating media instead of water, as appropriate. The EN 1264 series specifies standardized product characteristics by calculation and testing the thermal output of heating for technical specifications and certification. For the design, construction and operation of these systems, see EN 1264-3 and EN 1264-4 for the types A, B, C, D, H, I and J. For the types E, F and G, see the EN ISO 11855 series. The systems specified in the EN 1264 series are adjoined to the structural base of the enclosure surfaces of the building, mounted directly or with fixing supports. The EN 1264 series does not specify ceiling systems mounted in a suspended ceiling with a designed open air gap between the system and the building structure which allows the thermally induced circulation of the air. The thermal output of these systems can be determined according to the EN 14037 series and EN 14240. EN 1264-5 specifies the recalculation of values determined in EN 1264-2 for the system in question. It enables the conversion of the calculation and measurement results of EN 1264-2 into results for other surface orientations in the room, i.e. for ceiling and wall heating, as well as for the application as cooling surfaces, i.e. for floor, ceiling and wall cooling. The test results of EN 1264-2 are the basis of all calculation, whether or not the system in question is used for heating or cooling application.

The EN 1264 series gives guidelines for surface embedded heating and cooling systems installed in buildings, residential and non-residential (e.g. office, public, commercial and industrial buildings) and focuses on systems installed for the purpose of thermal comfort. The EN 1264 series gives guidelines for water based heating and cooling systems embedded into the enclosure surfaces of the room to be heated or to be cooled. It also specifies the use of other heating media instead of water, as appropriate. The EN 1264 series specifies standardized product characteristics by calculation and testing the thermal output of heating for technical specifications and certification. For the design, construction and operation of these systems, see EN 1264-3 and EN 1264-4 for the types A, B, C, D, H, I and J. For the types E, F and G, see the EN ISO 11855 series. The systems specified in the EN 1264 series are adjoined to the structural base of the enclosure surfaces of the building, mounted directly or with fixing supports. The EN 1264 series does not specify ceiling systems mounted in a suspended ceiling with a designed open air gap between the system and the building structure which allows the thermally induced circulation of the air. The thermal output of these systems can be determined according to the EN 14037 series and EN 14240. EN 1264-5 specifies the recalculation of values determined in EN 1264-2 for the system in question. It enables the conversion of the calculation and measurement results of EN 1264-2 into results for other surface orientations in the room, i.e. for ceiling and wall heating, as well as for the application as cooling surfaces, i.e. for floor, ceiling and wall cooling. The test results of EN 1264-2 are the basis of all calculation, whether or not the system in question is used for heating or cooling application.

EN 1264-5:2021 is classified under the following ICS (International Classification for Standards) categories: 91.140.10 - Central heating systems. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 1264-5:2021 has the following relationships with other standards: It is inter standard links to EN 1264-5:2008. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase EN 1264-5:2021 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

SIST EN 1264-5:2021 표준은 건물 내 수면에 설치된 난방 및 냉방 시스템의 열 출력 결정에 대한 가이드라인을 제공하며, 이러한 시스템들이 열적 편안함을 위해 설치된다는 점에서 중요한 역할을 합니다. 이 표준의 범위는 주거 및 비주거 건물에서의 수계열 난방 및 냉방 시스템에 관한 것으로, 물 외에도 적절한 다른 난방 매체의 사용을 규정합니다. EN 1264 시리즈는 난방 시스템의 열 출력을 계산 및 테스트하여 기술적인 사양 및 인증을 위한 표준화된 제품 특성을 규정합니다. 이는 사용자가 시스템을 설계하고, 제작하며, 운영하는 데 필수적입니다. 특히, EN 1264-5는 EN 1264-2에서 결정된 값을 재계산하는 방법을 규정하여, 다른 표면 방향에서의 결과로 변환할 수 있도록 지원합니다. 이는 난방뿐만 아니라 바닥, 천장, 벽 냉각 시스템에도 적용할 수 있습니다. 이 표준의 강점은 일반적인 적용 가능성과 신뢰성에 있습니다. 예를 들어, 시스템의 열 출력을 명확히 아는 것은 클라이언트가 필요한 난방 및 냉각 요구를 충족시킬 수 있도록 중요한 정보를 제공합니다. 또한, EN 1264-5는 다른 관련 표준인 EN 14037 시리즈 및 EN 14240과의 연계를 통해, 다양한 시스템에 대한 철저한 검증과 인증을 가능하게 합니다. 따라서, 이 표준은 현대 건축 환경에서의 난방 및 냉방 시스템의 표준화와 효율성을 보다 강화하는 데 중요한 역할을 합니다.

EN 1264-5:2021は、壁や天井の暖房および床、壁、天井の冷却システムの熱出力を決定するための基準を提供する重要な文書です。この標準は、建物の表面に埋め込まれた水を基にした暖房および冷却システムの設計、施工、運用に関するガイドラインを提供しており、その適用範囲は住宅から非住宅(オフィス、公共、商業、工業ビル)まで広がります。 この標準の強みは、特に技術仕様や認証において、標準化された製品特性を計算とテストを通じて明確にする点です。EN 1264-5では、EN 1264-2で決定された値の再計算について詳述されており、これにより、異なる表面の向きにおける結果を他の空間に適用することが可能になります。具体的には、天井や壁の暖房、または床、天井、壁の冷却としての応用についても対応しています。 さらに、EN 1264シリーズは、熱的快適性を目的としたシステムに焦点を当てており、他の加熱媒体の使用も適切に指定しています。これにより、水に依存しない代替オプションが考慮されることで、システムの柔軟性が向上します。標準は、建物の囲い面に直接取り付けられるか、支持具で固定されるシステムを対象としており、天井の吊り下げ方式や、システムと建物構造間の空気循環を許可する設計のものは含まれていません。 EN 1264-5:2021の関連性は、様々な環境において高い熱的効率を実現するための指針を提供することで、現代の建築ニーズに応える点にあります。これにより、設計者やエンジニアは、熱出力の適切な管理を行い、エネルギー効率の良いシステムの構築を促進できます。全体として、EN 1264-5は水を基にした暖房および冷却システムに関する重要な標準であり、その有用性と関連性は今後も高まると考えられます。

The EN 1264-5:2021 standard plays a crucial role in establishing best practices for water-based surface embedded heating and cooling systems in buildings. Its primary scope encompasses guidelines for systems installed within enclosures that provide thermal comfort, not only in residential settings but also in various non-residential environments such as offices, commercial spaces, public buildings, and industrial facilities. One of the notable strengths of this standard is its comprehensive approach to the thermal output determination for wall, ceiling, and floor systems. By specifying methods for recalculating values derived from EN 1264-2, EN 1264-5 allows for effective adaptation of thermal output assessments to different surface orientations and applications. This versatility is critical for ensuring optimal performance of heating and cooling solutions across a variety of configurations. Moreover, the standard emphasizes the importance of standardized product characteristics, which enhances technical specifications and aids in the certification process of these systems. By detailing the necessary calculation and testing methods, EN 1264-5 ensures that engineers and designers can provide reliable, efficient thermal solutions tailored to the unique needs of each building. The relevance of EN 1264-5 is further underscored by its compatibility with other harmonized standards in the EN 1264 series. It provides clear guidance on the design, construction, and operation of embedded heating and cooling systems, complementing its counterparts EN 1264-3 and EN 1264-4 for specific system types. This interconnection promotes a cohesive framework that improves the overall quality and regulatory compliance of thermal comfort systems in modern architecture. In summary, EN 1264-5:2021 stands out as a vital standard that not only defines the parameters for the thermal output of wall and ceiling heating as well as cooling applications but also solidifies the foundation for improved efficiency and comfort in both residential and commercial environments through systematic guidelines and standardization practices.

Die Norm EN 1264-5:2021 ist ein bedeutendes Dokument im Bereich der wasserbasierten, oberflächenintegrierten Heiz- und Kühlsysteme. Ihr Umfang umfasst die Bestimmung der thermischen Leistung von Wand- und Deckenheizungen sowie von Fußboden-, Wand- und Deckenkühlungen in sowohl Wohn- als auch Nichtwohngebäuden, darunter Büros, öffentliche Einrichtungen, kommerzielle und industrielle Bauwerke. Dies zeigt die Vielseitigkeit und Relevanz der Norm in verschiedenen Anwendungen der Gebäudetechnik. Ein herausragendes Merkmal der EN 1264-5 ist ihre Fähigkeit, die Werte, die in EN 1264-2 ermittelt wurden, für unterschiedliche Oberflächenorientierungen umzurechnen. Dies ermöglicht eine präzise Bewertung und Optimierung der Systeme, unabhängig davon, ob sie zur Heiz- oder Kühlzwecken eingesetzt werden. Es ist auch wichtig zu erwähnen, dass diese Norm die Verwendung anderer Heizmedien anstelle von Wasser spezifiziert, was ihre Flexibilität und Anpassungsfähigkeit an verschiedene technische Anforderungen erhöht. Die Norm leistet einen wertvollen Beitrag zur Standardisierung der Produktmerkmale durch Berechnungen und Tests der thermischen Leistung, was entscheidend für technische Spezifikationen und Zertifizierungen ist. Darüber hinaus bietet sie klare Richtlinien für die Gestaltung, den Bau und den Betrieb dieser Systeme. Es wird auf die Typen A, B, C, D, H, I und J verwiesen, während für die Typen E, F und G die EN ISO 11855 Reihe konsultiert werden muss. Insgesamt ist die EN 1264-5:2021 ein unerlässliches Dokument für Fachleute im Bereich der Gebäudetechnik, da sie nicht nur die technischen Voraussetzungen für Heiz- und Kühlsysteme festlegt, sondern auch deren effektive Anwendung in der Praxis unterstützt. Diese Norm verbessert das Verständnis und die Effizienz von wasserbasierten Systemen erheblich und trägt somit zur Schaffung eines thermisch komfortablen Umfelds bei.

La norme EN 1264-5:2021, qui fait partie de la série EN 1264, se concentre sur les systèmes de chauffage et de refroidissement à eau intégrés dans les surfaces des bâtiments, qu'ils soient résidentiels ou non résidentiels. Cette norme revêt une grande importance pour l'amélioration du confort thermique dans les espaces bâtis, en précisant comment déterminer la capacité thermique des systèmes de chauffage et de refroidissement installés au niveau des murs, des plafonds et des sols. Une des forces de la norme EN 1264-5 réside dans son approche systématique pour la recalculation des valeurs de performance thermique, issues de la norme EN 1264-2. Ce processus permet une conversion précise des résultats de calcul pour différentes orientations de surface dans une pièce, facilitant ainsi l'application de ces systèmes pour les besoins en chauffage et en refroidissement. Cela assure une flexibilité d'utilisation, que ce soit pour des surfaces de plafond, de mur ou de sol, ce qui est crucial pour les différents types de bâtiments et leur utilisation multi-fonctionnelle. De plus, la norme encadre le choix des médias de chauffage alternatifs à l'eau, offrant ainsi une portée élargie qui s'adapte aux innovations technologiques et aux différents besoins des utilisateurs. En standardisant les caractéristiques des produits par le biais de tests et de calculs de l'output thermique, EN 1264-5 s'assure que des spécifications techniques fiables soient fournies, favorisant la confiance dans les systèmes installés. L'interconnexion avec d'autres normes, telles que l'EN 1264-3 et 1264-4, ainsi que la série EN ISO 11855 pour certains types de systèmes, renforce encore la pertinence de cette norme dans le cadre d'un développement harmonisé et efficace des systèmes de chauffage et de refroidissement basés sur l'eau. En résumé, la norme EN 1264-5:2021 est un document essentiel pour la conception, la construction et l'exploitation des systèmes de chauffage et de refroidissement intégrés dans les surfaces des bâtiments. Elle garantit non seulement un confort thermique optimal, mais également une approche standardisée qui répond aux exigences modernes en matière d'efficacité et de performance énergétique.