prEN 16863

Thermal insulation products for buildings - Factory made reflective insulation products (RI) - Specification

This European Standard specifies the requirements for factory made reflective insulation products, which are used for the thermal insulation of buildings. The products are manufactured in the form of rolls, boards or sheets and are used in conjunction with an air space or spaces and in non load-bearing applications.
It applies to thermal insulation products that derive a proportion of their claimed thermal properties from the presence of one or more reflective or low emissivity surfaces together with any associated airspace(s).
This European Standard describes product characteristics and includes procedures for testing, evaluation of conformity, marking and labelling.
This European Standard does not specify the required level of a given property to be achieved by a product to demonstrate fitness for purpose in a particular application. The levels required for a given application are to be found in regulations or non-conflicting standards.
This European Standard covers the use of products for heat retention in buildings (cold or temperate climate) and an informative annex provides for the provision of further information on the product performance for applications with downwards heat flow.

Wärmedämmstoffe für Gebäude - Werkmäßig hergestellte reflektierende Wärmedämmstoffe - Spezifikation

Diese Europäische Norm legt die Anforderungen für werkmäßig hergestellte reflektierende Wärmedämmstoffe, die für die Wärmedämmung von Gebäuden verwendet werden, fest. Die Wärmedämmstoffe werden in Form von Rollen, Platten oder Folien hergestellt und in Verbindung mit (einem) Luftspalt(en) in nicht-tragenden Anwendungen verwendet.
Die Norm ist auf Wärmedämmstoffe anwendbar, die einen Anteil der angegebenen thermischen Eigenschaften aus dem Vorhandensein einer oder mehrerer reflektierender oder niedrig emittierender Oberflächen zusammen mit verbundenem Hohlraum beziehen.
Diese Europäische Norm beschreibt die Produkteigenschaften und enthält die Prüfverfahren und Festlegungen für die Konformitätsbewertung, die Kennzeichnung und die Beschriftung.
Diese Europäische Norm legt keine Klassen oder Leistungsstufen für eine vorgegebene Eigenschaft fest, die ein Produkt erreichen muss, um für einen bestimmten Anwendungsfall tauglich zu sein. Die für bestimmte Anwendungen benötigten Klassen und Stufen können Regelwerken oder nicht entgegenstehenden Normen entnommen werden.
Diese Europäische Norm deckt die Verwendung von Produkten für das Wärmerückhaltevermögen in Gebäuden (kaltes oder gemäßigtes Klima) ab und ein informativer Anhang stellt die Vorgaben für weiteren Informationen über die Produktleistungsfähigkeit für Anwendungen mit absteigendem Wärmefluss bereit.

Produits isolants thermiques pour le bâtiment - Produits d'isolation réfléchissants manufacturés - Spécification

La présente Norme européenne définit les exigences pour les produits d’isolation réfléchissants manufacturés, qui sont utilisés pour l’isolation thermique des bâtiments. Les produits sont fabriqués sous forme de rouleaux, de panneaux ou de feuilles et sont utilisés conjointement à une ou plusieurs couches d’air et dans des applications sans charge.
Elle s’applique aux produits d’isolation thermique dont une partie des propriétés thermiques revendiquées est due à la présence d’une ou plusieurs surfaces réfléchissantes ou à faible émissivité vis-à-vis de couche(s) d’air associée(s).
La présente Norme européenne décrit les caractéristiques des produits et comporte des modes opératoires d’essai, d’évaluation de conformité, de marquage et d’étiquetage.
La présente Norme européenne ne spécifie pas le niveau requis d’une propriété donnée devant être atteint par un produit pour en démontrer l’aptitude à l’emploi dans une application particulière. Les niveaux requis pour une application particulière sont à trouver dans les réglementations ou dans des normes non contradictoires.
La présente Norme européenne couvre l’utilisation des produits pour la conservation de la chaleur dans les bâtiments (climat froid ou tempéré) et une annexe informative fournit plus d’informations sur les performances du produit pour les applications à flux thermique descendant.

Toplotnoizolacijski proizvodi za stavbe - Odsevni izolacijski proizvodi (RI) - Specifikacija

General Information

• Status: Not Published
• Publication Date: 05-Feb-2017
• ICS: 91.100.60 - Thermal and sound insulating materials
• Technical Committee: CEN/TC 88 - Thermal insulating materials and products
• Drafting Committee: CEN/TC 88/WG 21 - Reflective insulation products
• Current Stage: 4098 - Decision to abandon - Enquiry
• Start Date: 09-Jun-2017
• Completion Date: 14-Apr-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
• Mandate: M/103 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on thermal insulating products
• Ref Project: oSIST prEN 16863:2015 - Thermal insulation products for buildings - Factory made reflective insulation products (RI) - Specification

Overview

The European Standard prEN 16863 titled Thermal insulation products for buildings - Factory made reflective insulation products (RI) - Specification establishes stringent requirements for reflective insulation materials designed for use in buildings. Developed by CEN/TC 88 under the European Committee for Standardization (CEN), this standard governs the production, testing, evaluation, marking, and labelling of factory-made reflective insulation products. These products come in rolls, boards, or sheets and are principally used in non-load-bearing applications alongside one or more air spaces to enhance thermal insulation performance.

Reflective insulation products under this standard derive their thermal properties due to the presence of low emissivity or reflective surfaces. The standard specifically applies to materials intended for heat retention in buildings located in cold or temperate climates and emphasizes the environmental benefits by reducing energy consumption and emissions during the product's installed lifecycle.

Key Topics

• Product Scope & Characteristics:
  Covers reflective insulation products used in building envelopes, specifying critical features such as thermal resistance, emissivity, dimensions, mass, and durability.

• Performance Requirements:
  Includes essential characteristics like:

  • Thermal resistance and emissivity values
  • Dimensional tolerances (length, width, thickness, squareness)
  • Mechanical properties (tensile strength parallel to faces)
  • Water vapour transmission and water absorption
  • Fire reaction classification and release of dangerous substances

• Testing & Evaluation Procedures:
  Establishes standard methods for sampling, conditioning, and testing. Key test methods include guarded hot plate and heat flow meter techniques to assess thermal resistance and emissivity, along with fire performance tests aligned with EN 13501-1.

• Assessment of Product Consistency:
  Details the requirements for Factory Production Control (FPC), Product Type Determination (PTD), and the Assessment and Verification of Constancy of Performance (AVCP) under EU Construction Products Regulation.

• Marking and Labelling:
  Specifies the essential marking and labelling information to ensure traceability, conformity, and proper identification in the market.

Applications

• Building Thermal Insulation:
  The reflective insulation products specified in prEN 16863 are ideal for installation in walls, roofs, and floors of residential, commercial, and industrial buildings to improve energy efficiency by reducing heat loss.

• Non-Load-Bearing Components:
  Designed for use in applications where mechanical load-bearing is not required, such as cavity insulation adjacent to air spaces or as part of multi-layer insulation systems.

• Cold and Temperate Climates:
  Particularly suitable for regions where heat retention in buildings is critical to reduce heating energy consumption and carbon footprint.

• Combined Systems:
  Often used in conjunction with traditional bulk insulation or other thermal barriers for enhanced performance, especially where reflective surfaces can reduce radiant heat transfer.

Related Standards

prEN 16863 references multiple European and international standards to ensure comprehensive evaluation and conformity, including:

• EN 822 to EN 824: Specifications for determining length, width, thickness, and squareness of insulation products.
• EN 12667 & EN 12939: Methods for assessing thermal resistance using guarded hot plate and heat flow meters.
• EN 13501-1: Reaction to fire classification of construction products.
• EN 1607 & EN 1608: Mechanical testing procedures such as tensile strength.
• EN 12086 & EN 12087: Water vapor transmission and water absorption tests.
• EN ISO 354 & EN ISO 1182: Acoustic and non-combustibility testing standards.
• EN 13172: Evaluation of conformity for thermal insulation products.
• EU Construction Products Regulation Annex ZA: Requirements for Declaration of Performance (DoP) and AVCP procedures.

Practical Benefits

• Energy Efficiency:
  Reflective insulation products developed under prEN 16863 contribute significantly to reducing energy consumption for heating, supporting EU climate goals.

• Quality Assurance:
  Compliance with the standard ensures consistent product performance and durability, providing confidence in material selection.

• Safety Compliance:
  Defined fire reaction classifications and limits on hazardous substance release help maintain safety standards within building constructions.

• Market Access:
  Adherence to prEN 16863 facilitates easier market acceptance and regulatory approval across European countries.

By following the requirements in prEN 16863, manufacturers and construction professionals can ensure high-performance reflective insulating products that meet essential quality, safety, and environmental standards within the European construction market.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2015
Toplotnoizolacijski proizvodi za stavbe - Odsevni izolacijski proizvodi (RI) -
Specifikacija
Thermal insulation products for buildings - Factory made reflective insulation products
(RI) - Specification
Wärmedämmstoffe für Gebäude - Werkmäßig hergestellte reflektierende
Wärmedämmstoffe - Spezifikation
Produits isolants thermiques pour le bâtiment - Produits d'isolation réfléchissants
manufacturés - Spécification
Ta slovenski standard je istoveten z: prEN 16863
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
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2015
ICS 91.100.60
English Version
Thermal insulation products for buildings - Factory made
reflective insulation products (RI) - Specification
Wärmedämmstoffe für Gebäude - Werkmäßig hergestellte
reflektierende Wärmedämmstoffe - Spezifikation
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 88.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16863:2015 E
worldwide for CEN national Members.

Contents Page
Foreword .4
1 Scope .5
2 Normative references .5
3 Terms, definitions, symbols, units and abbreviated terms .6
3.1 Terms and definitions .6
3.2 Symbols and units .7
3.3 Abbreviated terms .8
4 Requirements .9
4.1 General .9
4.2 For all applications .9
4.2.1 Thermal resistance .9
4.2.2 Emissivity .9
4.2.3 Length and width . 10
4.2.4 Thickness . 10
4.2.5 Squareness . 10
4.2.6 Mass per unit area . 10
4.2.7 Tensile strength parallel to faces . 10
4.2.8 Water vapour transmission . 10
4.2.9 Reaction to fire of the product as placed on the market . 11
4.2.10 Release of dangerous substances . 11
4.2.11 Durability characteristics . 11
4.3 For specific applications . 11
4.3.1 General . 11
4.3.2 Thermal resistance with heat flow downwards . 12
4.3.3 Air flow resistivity . 12
4.3.4 Water absorption . 12
4.3.5 Resistance to tearing . 12
4.3.6 Sound absorption . 12
4.3.7 Reaction to fire of the product in standardized assemblies simulating end-use
applications . 12
4.3.8 Continuous glowing combustion . 12
4.3.9 Water tightness . 13
4.3.10 Thermal resistance in standardised assemblies simulating end-use application and under
specified conditions . 13
5 Test methods . 13
5.1 Sampling . 13
5.2 Conditioning . 13
5.3 Testing . 13
5.3.1 General . 13
5.3.2 Thermal resistance . 13
6 Designation code . 15
7 Assessment and Verification of the Constancy of Performance (AVCP) . 15
7.1 General . 15
7.2 Product Type Determination (PTD) . 15
7.3 Factory Production Control (FPC) . 16
8 Marking and labelling . 16
Annex A (normative) Determination of the declared values of thermal resistance of the core

and/or declared value of emissivity . 18
A.1 General . 18
A.2 Input data . 18
A.3 Declared values . 18

A.3.1 General . 18
A.3.2 Case where emissivity declared . 18
A.3.3 Case where thermal resistance is declared . 19
Annex B (normative) Product Type Determination (PTD) and Factory production control (FPC) . 20
Annex C (informative) Additional properties. 24
C.1 General . 24
C.2 Peel Strength of adhesive tape . 24
C.3 Corrosion resistance. 24
C.4 Calculation of thermal resistance with heat flow downwards and associated airspace(s) . 24
Annex D (informative) Examples for the determination of the declared values of thermal

resistance and emissivity for a product or a product type . 25
D.1 Case where emissivity is declared . 25
D.2 Case where core thermal resistance is declared . 26
Annex ZA (informative) Clauses of this European Standard addressing the provisions of the

EU Construction Products Regulation . 27
ZA.1 Scope and relevant characteristics . 27
ZA.2 Procedures for AVCP of factory made reflective insulation products . 28
ZA.2.1 Systems of AVCP . 28
ZA.2.2 Declaration of Performance (DoP) . 32
ZA.3 Marking and labelling . 34

Bibliography . 37

Foreword
This document (prEN 16863:2015) has been prepared by Technical Committee CEN/TC 88 “Thermal
insulating materials and products”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
This European Standard is one of a series of standards for thermal insulation products used in buildings but
this European Standard may be used in other areas where appropriate.
The reduction in energy used and emissions produced during the installed life of insulation products exceeds
by far the energy used and emissions made during the production and disposal processes.
1 Scope
This European Standard specifies the requirements for factory made reflective insulation products, which are
used for the thermal insulation of buildings. The products are manufactured in the form of rolls, boards or
sheets and are used in conjunction with an air space or spaces and in non-load-bearing applications.
It applies to thermal insulation products that derive a proportion of their claimed thermal properties from the
presence of one or more reflective or low emissivity surfaces together with any associated airspace(s).
This European Standard describes product characteristics and includes procedures for testing, evaluation of
conformity, marking and labelling.
This European Standard does not specify the required level of a given property to be achieved by a product to
demonstrate fitness for purpose in a particular application. The levels required for a given application are to be
found in regulations or non-conflicting standards.
This European Standard covers the use of products for heat retention in buildings (cold or temperate climate)
and an informative annex provides for the provision of further information on the product performance for
applications with downwards heat flow.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
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 1602, Thermal insulating products for building applications - Determination of the apparent density
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 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 12310-1, Flexible sheets for waterproofing - Part 1: Bitumen sheets for waterproofing - Determination of
resistance to tearing (nail shank)
EN 12667, Thermal performance of building materials and products - Determination of thermal resistance by
means of guarded hot plate and heat flow meter methods - Products of high and medium thermal resistance
EN 12939, Thermal performance of building materials and products - Determination of thermal resistance by
means of guarded hot plate and heat flow meter methods - Thick products of high and medium thermal
resistance
EN 13172:2012, Thermal insulation products - Evaluation of conformity
EN 13501-1, Fire classification of construction products and building elements - Part 1: Classification using
data from reaction to fire tests
EN 13820, Thermal insulating materials for building applications - Determination of organic content
EN 13823, Reaction to fire tests for building products - Building products excluding floorings exposed to the
thermal attack by a single burning item
EN 13859-1:2014, Flexible sheets for waterproofing - Definitions and characteristics of underlays - Part 1:
Underlays for discontinuous roofing
EN 15715:2009, Thermal insulation products - Instructions for mounting and fixing for reaction to fire testing -
Factory made products
EN 16012:2012+A1:2015, Thermal insulation for buildings - Reflective insulation products - Determination of
the declared thermal performance
EN 29053, Acoustics - Materials for acoustical applications - Determination of airflow resistance (ISO 9053)
EN ISO 354, Acoustics - Measurement of sound absorption in a reverberation room (ISO 354)
EN ISO 1182, Reaction to fire tests for products - Non-combustibility test (ISO 1182)
EN ISO 1716, Reaction to fire tests for products - Determination of the gross heat of combustion (calorific
value) (ISO 1716)
EN ISO 8990, Thermal insulation - Determination of steady-state thermal transmission properties - Calibrated
and guarded hot box (ISO 8990)
EN ISO 9229:2007, Thermal insulation - Vocabulary (ISO 9229:2007)
EN ISO 11654, Acoustics - Sound absorbers for use in buildings - Rating of sound absorption (ISO 11654)
EN ISO 11925-2, Reaction to fire tests - Ignitability of products subjected to direct impingement of flame -
Part 2: Single-flame source test (ISO 11925-2)
ISO 16269-6:2005, Statistical interpretation of data - Part 6: Determination of statistical tolerance intervals
3 Terms, definitions, symbols, units and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 9229:2007 (excepted 2.7.15 and
2.7.16) and the following apply.
3.1.1
reflective insulation product
thermal insulation product that derives a proportion of its claimed thermal properties from the presence of one
or more reflective or low emissivity surfaces together with any associated airspace(s)
3.1.2
level
value which is the upper or lower limit of a requirement and given by the declared value of the characteristic
concerned
[SOURCE: EN ISO 9229:2007, 2.7.15, modified]
3.1.3
class
combination of two levels of the same property between which the performance shall fall
[SOURCE: EN ISO 9229:2007, 2.7.16, modified]
3.2 Symbols and units
For the purposes of this document, the following symbols and units apply.
Table 1 — Symbols
Symbol Designation Unit
b width mm
d thickness mm
d mm
thickness under a load of 25 Pa or 250 Pa (see 4.2.4)
L
d mm
nominal thickness of the product
N
k factor related to the number of test results –
l length mm
N number of test results –
R 2
thermal resistance with heat flow downward

(HFD) m ⋅K/W
R 2
thermal resistance with heat flow upwards

(HFU) m ⋅K/W
R 2
thermal resistance with horizontal heat flow
(HHF) m ⋅K/W
R 2
thermal resistance of the core
(core) m ⋅K/W
R 2
90 % fractile with a confidence level of 90 % for the thermal resistance
90/90 m ⋅K/W
R 2
declared thermal resistance
D m ⋅K/W
R 2
one test result of thermal resistance
i m ⋅K/W
R 2
mean thermal resistance
mean m ⋅K/W
R 2
design thermal resistance
U m ⋅K/W
s 2
estimate of the standard deviation of the thermal resistance
R m ⋅K/W
Symbol Designation Unit
S W/(m⋅K)
estimate of the standard deviation of the thermal conductivity
λ
W 2
long-term water absorption by partial immersion
lp kg/m
W 2
short-term water absorption
p kg/m
Z
water vapour resistance
m ⋅h⋅Pa/mg
ε emissivity of the surface –
ε –
90 % fractile with a confidence level of 90 % for the emissivity
90/90
μ water vapour diffusion resistance factor –
σ kPa
tensile strength perpendicular to faces
mt
AF level airflow resistivity
r
AP declared level of practical sound absorption coefficient
AW declared level of weighted sound absorption coefficient
MU declared value for water vapour diffusion resistance factor
T declared class or level for thickness tolerances
TR declared level for tensile strength perpendicular to faces
WL(P) declared level for long-term water absorption by partial immersion
WS declared level for short-term water absorption
Z declared value for water vapour resistance
3.3 Abbreviated terms
For the purposes of this document, the following abbreviated terms apply.
AVCP Assessment and Verification of Constancy of Performance (previously named attestation of
conformity)
DoP Declaration of Performance
FPC Factory Production Control
PTD Product Type Determination (previously named ITT for Initial Type Test)
RI Reflective Insulation
RtF Reaction to Fire
ThIB Thermal Insulation for Buildings
VCP Verification of Constancy of Performance (previously named evaluation of conformity)
4 Requirements
4.1 General
Product properties shall be assessed in accordance with Clause 5. To comply with this European Standard,
products shall meet the requirements of 4.2, and the requirements of 4.3 as appropriate.
One test result for a product property is the average of the measured values on the number of test specimens
given in Table 4.
4.2 For all applications
4.2.1 Thermal resistance
Thermal resistance shall be based upon measurements carried out and declared in accordance with
EN 16012, and at reference conditioning 23 °C/50 % RH, as defined in 5.2.
The thermal resistance shall be declared by the manufacturer according to the following:
— the reference mean temperature shall be 10 °C;
— the measured values shall be expressed with three significant figures;
— the declared thermal resistance, R , shall be given as a limit value representing at least 90 % of the
D
production, determined with a confidence level of 90 %;
— the declared thermal resistance, R , shall be based upon the nominal thickness, dN, or the measured
D
thickness d whichever is the lesser thickness;
L
— the statistical value of thermal resistance, R , shall be rounded downwards to the nearest
90/90
2 2
0,05 m ⋅K/W, and declared as R in levels with steps of 0,05 m ⋅K/W;
D
Examples of determination of the declared values of thermal resistance, R , are given in Annex D.
D
R (design values) may be determined with reference to EN ISO 10456 and/or EN ISO 6946 for air spaces.
U
4.2.2 Emissivity
The emissivity of the reflective surface or surfaces of the product shall be determined in accordance with the
method given in EN 16012:2012+A1:2015, 5.9 and Annex D, after conditioning in accordance with
EN 16012:2012+A1:2015, D.5.3.
Measured values shall be declared by the manufacturer according to the following:
— the measured value shall be expressed to 2 significant figures;
— the declared value of emissivity ε shall be given as a limit value representing at least 90 % of the
D
production, determined with a confidence level of 90 %;
— the statistical value of emissivity ε shall be declared for each external face of the product if the two
90/90
faces differ (including the presence of printing exceeding 5 % of the area on any face), otherwise the
declared value may be the mean value for the two faces provided they do not differ by more than 0,01;
— the statistical value of emissivity shall be rounded upwards to the nearest 0,01. Values less than 0,05
shall be declared as 0,05.
4.2.3 Length and width
Length, l, and width, b, shall be determined in accordance with EN 822. No test result shall deviate from the
nominal values by more than the following:
— - 2 % to + 5 % for length,
— ± 2,0 % for width.
4.2.4 Thickness
Thickness, d, shall be determined in accordance with EN 823 except that the load shall be 25 Pa, and for
products with a level of compressive stress or compressive strength of 10 kPa or greater (see 4.3.3), the load
shall be 250 Pa. No test result shall deviate from the nominal thickness, d , by more than the tolerances given
N
in Table 2 for the declared level or class.
Table 2 — Level and classes for thickness tolerances
Level or class Tolerances
a
T1 – 5 % or – 5 mm + 20 mm
a b
T2 – 5 % or – 5 mm + 15 % or + 15 mm
a b
T3 – 3 % or – 3 mm + 10 % or + 10 mm
a b
T4 – 3 % or – 3 mm + 5 % or + 5 mm
a
T5 – 1 % or – 1 mm + 3 mm
a
Whichever gives the greatest numerical tolerance.
b
Whichever gives the smallest numerical tolerance.
This test shall not be performed on product comprising single thin sheets less than 1 mm in thickness that are
supplied in the form of “pillows” or “cushions” (See EN 16012:2012+A1:2015, 4.5, Product Type 4).
4.2.5 Squareness
Squareness shall be only be determined for product supplied as boards or sheets less than 5 m in length and
shall be in accordance with EN 824. The deviation from squareness on length and width, S , of boards and
b
sheets shall not exceed 10 mm/m.
4.2.6 Mass per unit area
The mass per unit area shall be determined in accordance with EN 1602 but the result shall be declared as
the mass per square metre of product. No individual result shall vary by more than 10 % of the declared value.
4.2.7 Tensile strength parallel to faces
Tensile strength parallel to faces, σ , shall be determined in accordance with EN 1608. For handling purposes,
t
products shall have a tensile strength parallel to faces high enough to support twice the weight of the full-size
product.
4.2.8 Water vapour transmission
Water vapour transmission properties shall be determined in accordance with EN 12086 (using ‘wet’
conditions), and declared as the water vapour resistance, Z or the diffusion factor μ. All test results for Z or µ
shall be within the declared tolerance of the declared value.
4.2.9 Reaction to fire of the product as placed on the market
Reaction to fire classification of the product, as placed on the market, shall be determined in accordance with
EN 13501-1 and the mounting and fixing rules given in EN 15715.
NOTE 1 This classification is compulsory and always included in the CE marking label.
Detailed information about the test conditions and the field of application of the classification as stated in the
reaction to fire classification report shall be given in the manufacturer's literature.
NOTE 2 The Commission Decision 96/603/EC of 4 October 1996, amended by the Commission Decisions
2000/605/EC of 26 September 2000 and 2003/424/EC of 6 June 2003, gives the list of products to be considered as
reaction to fire class Euroclass A1 without the need for testing.
4.2.10 Release of dangerous substances
National regulations on dangerous substances may require verification and declaration on release, and
sometimes content, when construction products covered by this European Standard are placed on those
markets.
In the absence of European harmonized test methods, verification and declaration on release/content should
be done taking into account national provisions in the place of use.
NOTE An informative database covering European and national provisions on dangerous substances is available at
the Construction website on EUROPA accessed through: http://ec.europa.eu/growth/tools-databases/cp-ds/index_en.htm.
4.2.11 Durability characteristics
4.2.11.1 General
The appropriate durability characteristics have been considered and are covered in 4.2.11.2 and 4.2.11.3.
4.2.11.2 Durability of thermal resistance against ageing/degradation
The thermal resistance may be affected by ageing of the low emissivity facing. The procedure for
determination of emissivity given in EN 16012 (see 4.2.2) already provides information on the potential ageing
of the low emissivity surface.
To assess degradation in thickness, the thickness measurement procedure described in 4.2.4 shall be carried
out after ageing in accordance with EN 16012:2012+A1:2015, D.5.3, except that the duration of the
conditioning shall be reduced to 8 h. This shall be carried out as part of the Product Type Determination; the
change in thickness after ageing shall not be greater than the minimum tolerance in the class of the declared
thickness (Table 2).
4.2.11.3 Durability of reaction to fire of the product as placed on the market against ageing/
degradation
Reaction to fire of the product as placed on the market does not change with time. This is covered by 4.2.9
reaction to fire of the product as placed on the market.
4.3 For specific applications
4.3.1 General
If there is no requirement for a property described in 4.3 for a product in use, then the property does not need
to be determined and declared by the manufacturer.
4.3.2 Thermal resistance with heat flow downwards
In addition to the declared value specified in 4.2.1, the manufacturer may also provide information on the
thermal resistance when used in applications with heat flow downwards. The procedure is given in C.4.
4.3.3 Air flow resistivity
For acoustical applications, the airflow resistivity, AF , shall be determined in accordance with EN 29053. The
r
value of airflow resistivity shall be declared in levels with steps of 1 kPa⋅s/m . No test result shall be lower
than the declared value.
4.3.4 Water absorption
4.3.4.1 Short-term water absorption
Short-term water absorption by partial immersion, W , shall be determined in accordance with EN 1609. No
p
test result shall exceed 1,0 kg/m . By exception, products less than 50 mm thick shall be tested with only
5 mm of water depth and products less than 10 mm thickness shall be excluded from this requirement.
4.3.4.2 Long-term water absorption
Long-term water absorption by partial immersion, W , shall be determined in accordance with EN 12087.
lp
No test result shall exceed 3,0 kg/m .
4.3.5 Resistance to tearing
The resistance to tearing (for example by exposed nails) shall be determined in accordance with EN 12310-1.
No value shall be less than 50 N and the rupture elongation shall exceed 5 %.
4.3.6 Sound absorption
Sound absorption coefficient shall be determined in accordance with EN ISO 354. The sound absorption
characteristics shall be calculated in accordance with EN ISO 11654 using the values for the practical sound
absorption coefficient, α , at the frequencies: 125 Hz, 250 Hz, 500 Hz, 1 000 Hz, 2 000 Hz and 4 000 Hz and
p
the single number value for the weighted sound absorption coefficient, α .
w
α and α shall be rounded to the nearest 0,05 (α larger than 1 shall be expressed as α = 1) and declared
p w p p
in levels with steps of 0,05. No result of α and α shall be lower than the declared level.
p w
4.3.7 Reaction to fire of the product in standardized assemblies simulating end-use applications
Reaction to fire classification of products in standardized assemblies simulating end-use applications shall be
determined in accordance with EN 13501-1 and the mounting and fixing rules given in EN 15715.
This classification offers the opportunity to give a complementary and optional declaration on reaction to fire
for standard test configurations of assemblies which include the insulation product.
The number of the selected test configuration of assembly (EN 15715:2009, Table 5) which is used in the test
shall be quoted with the Euroclass.
Detailed information about the test conditions and the field of application of the classification as stated in the
reaction to fire classification report shall be given in the manufacturer's literature.
4.3.8 Continuous glowing combustion
NOTE A test method is under development and this European Standard will be amended when this is available.
4.3.9 Water tightness
Water tightness (or water penetration resistance) shall be determined in accordance with the method given in
EN 13859–1:2014, 5.2.3 and 5.2.4. The value of W, for reflective insulation products shall be declared
according to the tolerances given in Table 3.
Table 3 — Level and classes for “water tightness” tolerances
Level or class Tolerances
W1 No water penetration
W2 Maximum 100 ml water passing through
W3 More than 100 ml water passing through
4.3.10 Thermal resistance in standardised assemblies simulating end-use application and under
specified conditions
NOTE A test method is under development.
5 Test methods
5.1 Sampling
Test specimens shall be taken from the same sample with a total area not less than 1 m and sufficient to
cover the needed tests. The shorter side of the sample shall not be less than 300 mm or full size of the
product whichever is the smaller.
5.2 Conditioning
Unless specified elsewhere in this European Standard, or in the relevant test standard, test specimens shall
be conditioned at (23 ± 2) °C and (50 ± 5) % relative humidity for at least 6 h prior to test. In case of dispute,
the test specimens shall be stored at (23 ± 2) °C and (50 ± 5) % relative humidity at least 72 h prior to testing.
For FPC, no special conditioning of the test specimens is needed.
5.3 Testing
5.3.1 General
Table 4 gives the test methods, dimensions of the test specimens, the minimum number of measurements
required to get one test result and any specific conditions which are necessary.
5.3.2 Thermal resistance
Thermal resistance shall be determined in accordance with EN 16012 and under the following conditions:
— at a mean temperature of (10 ± 0,30) °C for hot plate tests;
— at a mean temperature of (10 ± 1) °C for hot box tests unless the equipment does not allow cooling of the
warm chamber below ambient when the mean temperature shall be (15 ± 1) °C;
— after conditioning in accordance with 5.2.
Thermal resistance may also be measured at mean temperatures other than 10 °C, providing that the
accuracy of the relationship between temperature and thermal properties be well documented.
Thermal resistance shall be determined directly at measured thickness or the nominal thickness whichever is
lower when tested in the hot plate.
Table 4 — Test methods, test specimens and conditions
Dimensions in millimetres
Clause Minimum
number of
Test specimen
Test method measurements Specific conditions
a
length and width
No Title
to get one test
result
4.2.1 Thermal resistance See EN 16012, and
EN 12667 or
EN 16012 1 –
EN 12939 or
EN ISO 8990
4.2.2 Emissivity Conditioning as
EN 16012 See EN 16012 15 (3 × 5) EN 16012:2012+A1:2015,
Annex D
4.2.3 Length and width EN 822 Full-size 1 –
4.2.4 Thickness Method B.1,
EN 823 Full-size 1 25 Pa or 250 Pa
see 4.2.4
4.2.5 Squareness EN 824 Full-size 1 Only for boards
4.2.6 Mass per unit area EN 1602 Full size 1
4.2.7 Tensile strength parallel to EN 1608 See EN 1608 3
faces
4.2.8 Water vapour EN 12086  3
transmission
4.2.9 Reaction to fire of the
See EN 15715:2009,
product as placed on the See EN 13501–1 and EN 15715
Clause 5
market
4.2.10 Release of dangerous
b – – –
substances
4.3.3 Air flow resistivity Apparatus
EN 29053 3 -
dependent
4.3.4.1 Short-term water
EN 1609 200 × 200 4
absorption
4.3.4.2 Long-term water
EN 12087 200 × 200 4 Method 1A
absorption
4.3.5 Resistance to tearing 5 in each

EN 12310–1 200 × 100
direction
4.3.6 Sound absorption
EN ISO 354 1 To be reported
Minimum 10 m
4.3.7 Reaction to fire of the
product in standardized
See EN 13501–1 and EN 15715
assemblies simulating See EN 15715:2009,
end-use applications Clause 6
4.3.9 Water tightness EN 13859–1:2014,
See EN 13859–1
5.2.3 or 5.2.4
Faced products shall have a suitable surface treatment.
When testing products with water vapour barrier, in accordance with EN 12086, the specimen thickness to measure is the
water vapour barrier thickness plus 2 mm to 3 mm.
a
Full-size product thickness except when the limits of the test methods are exceeded.
b
Not yet available.
6 Designation code
A designation code for the product shall be given by the manufacturer. The following shall be included except
when there is no requirement for a property described in 4.3.
— the reflective insulation abbreviated term RI
— this European Standard number EN 16863
— thickness tolerances Ti
— water vapour transmission MUi or Zi
— air flow resistivity AF i
r
— short-term water absorption WS
— long-term water absorption WL(P)
— practical sound absorption coefficient APi
— weighted sound absorption coefficient AWi
— water tightness Wi
where “i” shall be used to indicate the relevant class or level or declared value and for compressive creep the
term “σ ” shall be used to indicate the compressive stress and “y” to indicate the number of years.
c
EXAMPLE The designation code for a reflective insulation product is illustrated by the following example:
RI — EN 16863 — T2 MU1 — AP0,35 — AW0,40 – W2
NOTE The characteristics determined in 4.2 are not included in the designation code if a limit value (threshold value)
is given for the product.
7 Assessment and Verification of the Constancy of Performance (AVCP)
7.1 General
The manufacturer or his authorized representative shall be responsible for the conformity of his product with
the requirements of this European Standard. The Assessment and Verification of Constancy of Performance
(AVCP) shall be carried out in accordance with EN 13172 and shall be based on Product Type Determination
(PTD), Factory Production Control (FPC) by the manufacturer, including product assessment and tests on
samples taken at the factory.
The compliance of the product with the requirements of this European Standard and with the stated values
(including classes) shall be demonstrated by
— Product Type Determination (PTD),
— Factory Production Control by the manufacturer, including product assessment.
If a manufacturer decides to group his products, it shall be done in accordance with EN 13172.
7.2 Product Type Determination (PTD)
All characteristics defined in 4.2 and those in 4.3 if declared, shall be subject to Product Type Determination
(PTD) in accordance with Annex B.
7.3 Factory Production Control (FPC)
The minimum frequencies of tests in the factory production control (FPC) shall be in accordance with
Annex B. When indirect testing is used, the correlation to direct testing shall be established in accordance with
EN 13172.
8 Marking and labelling
Products conforming to this European Standard shall be marked clearly, either on the product or on the label
or on the packaging, with the following information:
— product name or other identifying characteristic;
— the intended use of the product given by the abbreviation ThiB;
— name or identifying mark and address of the manufacturer or his authorized representative;
— shift or time of production or traceability code (or UIC);
— reaction to fire class of the product as placed on the market. This classification shall be in accordance
with 4.2.9;
— declared thermal resistance of the core (R );
core
— optionally, the declared thermal resistance of the core together with one or two adjacent air spaces in a
table as shown below (Table 5) except where not applicable (N/A). If the emissivity of the faces differs
then the declared thermal resistance R with one air space shall be based upon the highest declared
D
emissivity;
— declared emissivity (ε ) for each face (if different; ε ; ε );
D D1- face 1 D2- face 2
— nominal thickness (d );
N
— designation code as given in Clause 6;
— nominal length;
— nominal width;
— number of pieces and area in the package, as appropriate.
NOTE For CE marking and labelling, see ZA.3.
Table 5 — Example table of thermal resistance in specific conditions
R
D
R (core)
With one air With two air
without any
a a
space space
air space(s)
R 1,65 2,30
D (HHF)
R 1,80 2,60
D (HFD)
1,00
R 1,45 1,90
D (HFU)
a
Calculation made in accordance with EN ISO 6946 using the declared
value of emissivity, with unventilated air space or spaces of 25 mm.
These values are not valid for other applications and a specific
calculation of the design values shall be done. Where a value for an
air space or spaces is not given in the table the term N/A shall be
used.
Annex A
(normative)
Determination of the declared values of thermal resistance of the core
and/or declared value of emissivity
A.1 General
It is the responsibility of the manufacturer to determine the declared values of thermal resistance and
emissivity. He shall demonstrate conformity of the product to its declared values. The declared values of
thermal resistance and emissivity of a product are the expected values of these properties during an
economically reasonable working life under normal conditions, assessed through measured data at reference
conditions. Products less than 1 mm in thickness have no thermal resistance and only emissivity is relevant.
A.2 Input data
The manufacturer shall have at least 10 test results for thermal resistance and emissivity, obtained from
internal and/or external direct measurements in order to calculate the declared values. The direct thermal
resistance and emissivity measurements shall be carried out at regular intervals spread over a time period of
the last 12 months. If less than 10 results are available, the time period may be extended, until 10 test results
are reached, but with a maximum of three years within which the product and the production conditions have
not changed significantly.
For new products, the 10 thermal resistance and 10 em
...