EN 824:2013

Thermal insulating products for building applications - Determination of squareness

This European Standard specifies the equipment and procedure for determining the deviation from squareness for length, width and/or thickness of full-size products. It is applicable to thermal insulating products. The method is normally applicable to products with straight edges. For products of other shape, e.g. profiled edges, the method can be adapted accordingly.

Wärmedämmstoffe für das Bauwesen - Bestimmung der Rechtwinkligkeit

Diese Europäische Norm legt Prüfeinrichtungen und Verfahren zur Bestimmung der Abweichung von der Rechtwinkligkeit von Seitenflächen in Längs- und Breitenrichtung sowie in Dickenrichtung an Produkten in Liefermaßen fest. Sie gilt für Wärmedämmstoffe. Das Verfahren ist für Produkte mit ebenen Seitenflächen anwendbar. Für anders geformte Produkte, z. B. mit profilierten Seitenflächen, kann das Verfahren entsprechend angepasst werden.

Produits isolants thermiques destinés aux applications du bâtiment - Détermination de l'équerrage

La présente Norme européenne spécifie l'équipement et le mode opératoire permettant de déterminer l'écart
d'équerrage sur la longueur, la largeur et/ou l'épaisseur des produits en vraies dimensions. Elle s’applique aux
produits isolants thermiques. La méthode s'applique normalement aux produits à bords droits. Pour les
produits ayant d'autres formes, par exemple ceux à bords profilés, la méthode peut être adaptée en
conséquence.

Toplotno izolacijski proizvodi za uporabo v gradbeništvu - Ugotavljanje pravokotnosti

Ta evropski standard določa opremo in postopke za ugotavljanje odklona od pravokotnosti pri dolžini, širini in/ali debelini izdelkov naravne velikosti. Uporablja se za toplotnoizolacijske proizvode. Ta metoda se običajno uporablja za izdelke z ravnimi robovi. Za izdelke druge oblike, npr. profilirane robove, se ta metoda lahko ustrezno prilagodi.

General Information

• Status: Published
• Publication Date: 12-Mar-2013
• ICS: 91.100.60 - Thermal and sound insulating materials
• ICS: 91.100.99 - Other construction materials
• Technical Committee: CEN/TC 88 - Thermal insulating materials and products
• Drafting Committee: CEN/TC 88/WG 1 - Common general test methods
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 07-Apr-2025
• Completion Date: 07-May-2025
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Ref Project: SIST EN 824:2013 - Thermal insulating products for building applications - Determination of squareness

Relations

• Replaces: EN 824:1994 - Thermal insulating products for building applications - Determination of squareness
• Effective Date: 20-Mar-2013

Overview

EN 824:2013 is a European Standard developed by the European Committee for Standardization (CEN), specifying the method for determining the deviation from squareness of thermal insulating products used in building applications. This standard outlines the equipment, test specimen requirements, and procedures needed to accurately measure deviations in length, width, and thickness squareness for full-size insulation products-primarily those with straight edges, but adaptable for profiled edges as well.

The standard supports consistent quality control and compliance within the thermal insulation industry, ensuring product dimensions meet strict tolerances for squareness, an essential parameter affecting installation and performance in building envelopes.

Key Topics

• Scope and Application
  EN 824:2013 applies exclusively to thermal insulating products designed for buildings. Its scope covers measuring the deviation from a perfect right angle (90°) in the product edges, essential for proper fitting and installation.

• Test Equipment
  The standard requires a flat surface, a precise metal square with limbs at least 500 mm in length and a squareness deviation of less than ±0.1 mm, and a metal ruler or tape graduated in millimeters (with 0.5 mm readability).

• Test Specimens
  Full-size products are tested, with the number of specimens specified by the product standard or agreed upon between parties. Conditioning of samples at specified temperature and humidity conditions ensures consistency and replicability.

• Measurement Procedure
  Squareness deviation is measured by placing the metal square against product edges and measuring the gap between the product edge and the square’s limb at specified points. The process includes:

  • Measuring length and width edges at corners with angles less than or equal to 90°.
  • Measuring thickness edges by placing the square on a flat surface against the test specimen edge, and recording the maximum deviation.
  • Accounting for any deviation from linearity of edges and reporting it separately.

• Calculation of Results
  Deviation is expressed in millimeters per meter for length and width using a precise formula and in millimeters for thickness. Results are rounded to the nearest millimeter per meter or millimeter as appropriate.

• Test Reporting
  Reports must include identification details such as product name and manufacturer, test conditions and procedure, and detailed results including all individual measurements and maximum deviations from squareness and linearity.

Applications

EN 824:2013 is critical for manufacturers, quality assurance laboratories, and regulatory bodies involved in the production and certification of thermal insulating materials for building construction. Practical applications include:

• Quality Control
  Manufacturers use this standard to ensure products meet specified dimensional tolerances, enabling reliable thermal performance and proper fit during installation.

• Compliance and Certification
  Testing according to EN 824:2013 supports compliance with European construction product directives and enhances product credibility for market acceptance.

• Product Development
  The standard aids in design verification, helping manufacturers optimize product dimensions and improve edge squareness to enhance usability and installation efficiency.

• Inspection and Verification
  Third-party testing laboratories and certification bodies apply this method to verify product claims and ensure conformity before products reach the construction site.

Related Standards

EN 824:2013 is part of a comprehensive series of standards from CEN/TC 88 addressing physical and mechanical properties of thermal insulating materials. Key related standards include:

• EN 822 – Determination of Length and Width of Thermal Insulating Products
• EN 823 – Determination of Thickness
• EN 825 – Determination of Flatness
• EN 826 – Determination of Compression Behaviour
• EN 1602 to EN 1609 – Various tests involving density, dimensional stability, tensile strength, and water absorption
• EN 12085 to EN 12091 – Tests for water vapour transmission, bending, shear, freeze-thaw resistance, and other behaviors

Together, these standards provide a rigorous framework to assess and ensure the dimensional accuracy, durability, and performance of thermal insulation products in building applications.

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Keywords: EN 824:2013, thermal insulating products, building applications, determination of squareness, deviation from squareness, thermal insulation testing, dimensional tolerances, quality control, European standard for insulation, squareness measurement method, CEN standards for thermal insulation.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2013
1DGRPHãþD
SIST EN 824:1997
Toplotno izolacijski proizvodi za uporabo v gradbeništvu - Ugotavljanje
pravokotnosti
Thermal insulating products for building applications - Determination of squareness
Wärmedämmstoffe für das Bauwesen - Bestimmung der Rechtwinkligkeit
Produits isolants thermiques destinés aux applications du bâtiment - Détermination de
l'équerrage
Ta slovenski standard je istoveten z: EN 824:2013
ICS:
91.100.60 0DWHULDOL]DWRSORWQRLQ Thermal and sound insulating
]YRþQRL]RODFLMR materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 824
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2013
ICS 91.100.60 Supersedes EN 824:1994
English Version
Thermal insulating products for building applications -
Determination of squareness
Produits isolants thermiques destinés aux applications du Wärmedämmstoffe für das Bauwesen - Bestimmung der
bâtiment - Détermination de l'équerrage Rechtwinkligkeit
This European Standard was approved by CEN on 15 December 2012.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 824:2013: E
worldwide for CEN national Members.

Contents Page
Foreword . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle. 5
5 Apparatus . 5
6 Test specimens . 5
7 Procedure . 6
8 Calculation and expression of results . 8
9 Accuracy of measurement . 8
10 Test report . 8

Foreword
This document (EN 824:2013) has been prepared by Technical Committee CEN/TC 88 “Thermal insulating
materials and products”, the secretariat of which is held by DIN.
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 September 2013, and conflicting national standards shall be
withdrawn at the latest by September 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 824:1994.
The revision of this standard contains no major changes, only minor corrections and clarifications of an
editorial nature.
This European Standard is one of a series of standards with specify test methods for determining dimensions
and properties of thermal insulating materials and products. It supports a series of products standards for
thermal insulating materials and products which derive from the Council Directive of 21 December 1988 on the
approximation of laws, regulations and administrative provisions of the Member States relating to construction
products (Directive 89/106/EEC) through the consideration of the essential requirements.
This European Standard has been drafted for applications in buildings but it may also be used in other areas
where it is relevant.
This European test standard is one of the following group of inter-related standards on test methods for
determining dimensions and properties of thermal insulation materials and products, all of which fall within the
scope of CEN/TC 88:
 EN 822, Thermal insulating products for building applications — Determination of length and width
 EN 823, Thermal insulating products for building applications — Determination of thickness
 EN 824, Thermal insulating products for building applications — Determination of squareness
 EN 825, Thermal insulating products for building applications — Determination of flatness
 EN 826, Thermal insulating products for building applications — Determination of compression behaviour
 EN 1602, Thermal insulating products for building applications — Determination of the apparent density
 EN 1603, Thermal insulating products for building applications — Determination of dimensional stability
under constant normal laboratory conditions (23 °C/50 % relative humidity)
 EN 1604, Thermal insulating products for building applications — Determination of dimensional stability
under specified temperature and humidity conditions
 EN 1605, Thermal insulating products for building applications — Determination of deformation under
specified compressive load and temperature conditions
 EN 1606, Thermal insulating products for building applications — Determination of compressive creep
 EN 1607, Thermal insulating products for building applications — Determination of tensile strength
perpendicular to faces
 EN 1608, Thermal insulating products for building applications — Determination of tensile strength
parallel to faces
 EN 1609, Thermal insulating products for building applications — Determination of short-term water
absorption by partial immersion
 EN 12085, Thermal insulating products for building applications — Determination of linear dimensions of
test specimens
 EN 12086, Thermal insulating products for building applications — Determination of water vapour
transmission properties
 EN 12087, Thermal insulating products for building applications — Determination of long-term water
absorption by immersion
 EN 12088, Thermal insulating products for building applications — Determination of long-term water
absorption by diffusion
 EN 12089, Thermal insulating prod
...