SIST EN 14915:2013+A2:2020
(Main)Solid wood panelling and cladding - Characteristics, requirements and marking
Solid wood panelling and cladding - Characteristics, requirements and marking
This European Standard defines and specifies the relevant characteristics and the appropriate test methods to determine these characteristics for solid wood products to be used as panelling and cladding (including siding) for:
- wall and ceiling panelling for internal use,
- wall and ceiling cladding for external uses.
It provides for the assessment and verification of constancy of performance and the requirements for marking these products.
This European Standard does not cover panels intended for use as stiffening elements.
This European Standard does not cover suspended ceiling in wood panelling and cladding.
This European Standard does not cover the processes for treatment, surface coating or modification.
This European standard does not cover products which are produced from laminated layer section.
This European Standard covers treated, untreated and surface coated products, including those made of thermally or chemically modified wood, as well as finger jointed and edge glued products.
NOTE Prescriptions for surface coating and treatment can be found in documents valid in the place of use.
This European Standard covers products in compliance with EN 14519, EN 15146 and EN 14951, and other solid timber products manufactured for use as panelling and cladding.
Wand- und Deckenbekleidungen aus Massivholz - Eigenschaften, Anforderungen und Kennzeichnung
Diese Europäische Norm legt die wesentlichen Eigenschaften für Massivholz-Produkte fest, die als Innen- und Außenbekleidungen verwendet werden (einschließlich seitlicher Wandbekleidungen), sowie die geeigneten Prüfverfahren zur Bestimmung dieser Eigenschaften für:
- Wand und Deckenbekleidungen zur Verwendung im Innenbereich;
- Wand und Deckenbekleidungen zur Verwendung im Außenbereich.
Sie legt die Bewertung der Konformität und die Anforderungen an die Kennzeichnung dieser Produkte fest.
Diese Europäische Norm gilt nicht für Platten, die für Versteifungszwecke vorgesehen sind.
Diese Europäische Norm gilt nicht für abgehängte Unterdecken-Bekleidungen aus Holz.
Diese Europäische Norm gilt nicht für den Prozess der Behandlung, Oberflächenbeschichtung oder Modifizierung.
Diese Europäische Norm gilt nicht für Produkte, die aus schichtverklebten Teilen hergestellt sind.
Diese Europäische Norm gilt für behandelte, unbehandelte und beschichtete Produkte, einschließlich solcher, die aus thermisch oder chemisch modifiziertem Holz hergestellt worden sind, sowie für keilgezinkte und kantenverleimte Produkte.
ANMERKUNG Vorschriften für die Oberflächenbeschichtung und Oberflächenbehandlung können in anderen, am Verwendungsort gültigen Dokumenten gefunden werden.
Diese Europäische Norm gilt für Produkte nach EN 14519, EN 15146 und EN 14951 und andere Massivholz-Produkte, die für die Verwendung als Innen- und Außenbekleidungen hergestellt sind.
Lambris et bardages en bois - Caractéristiques, exigences et marquage
La présente Norme européenne définit et spécifie les caractéristiques pertinentes, ainsi que les méthodes d'essais appropriées, pour déterminer les caractéristiques des produits bois destinés à être utilisés en tant que lambris et bardages utilisés en :
- Ouvrage de revêtement de mur et de plafond pour usage intérieur (lambris) ;
- Ouvrage de revêtement de mur et de plafond abrité pour usage extérieur (bardages).
Elle traite de l'évaluation de la conformité et des exigences concernant le marquage de ces produits.
La présente Norme européenne ne s'applique pas aux panneaux destinés à être utilisés comme éléments raidisseurs.
La présente Norme européenne ne s'applique pas aux plafonds suspendus en lambris et bardages en bois.
La présente Norme européenne ne traite pas des procédés de traitement, de revêtement de surface ou de modification du bois.
La présente Norme européenne ne s'applique pas aux produits qui proviennent de section lamellée.
La présente Norme européenne s'applique aux produits traités, non traités et revêtus, y compris ceux fabriqués à partir de bois modifié chimiquement ou thermiquement, ainsi qu'aux produits aboutés et collés sur chant.
NOTE Les prescriptions de finition et de traitement sont à rechercher dans les exigences prescrites pour le lieu d'utilisation
La présente Norme européenne s'applique aux produits conformes à l'EN 14519, à l'EN 15146, et à l'EN 14951, ainsi qu'aux autres produits bois fabriqués en vue de la réalisation de lambris et de bardages.
Stenske in stropne obloge iz masivnega lesa - Lastnosti, zahteve in označevanje
Ta evropski standard opredeljuje in navaja veljavne značilnosti in primerne preskusne metode za določanje lastnosti izdelkov iz masivnega lesa, ki se uporabljajo za notranje in zunanje obloge, za:
– stenske in stropne opaže za notranjo uporabo,
– stenske in stropne opaže za zunanjo uporabo.
Omogoča ocenjevanje in preverjanje nespremenljivosti lastnosti teh izdelkov in podaja zahteve za njihovo označevanje.
Ta evropski standard ne vključuje plošč, ki se uporabljajo kot ojačitveni elementi.
Ta evropski standard ne vključuje visečih lesenih stropnih opažev.
Ta evropski standard ne vključuje procesov za obdelavo, premazovanje ali spreminjanje površin.
Ta evropski standard ne vključuje izdelkov z laminirano plastjo.
Ta evropski standard vključuje vse obdelane, neobdelane in površinsko premazane izdelke, vključno s tistimi iz toplotno ali kemično obdelanega lesa, ter izdelke z zobatimi spoji in robno lepljenimi izdelki.
OPOMBA: Predpise za površinske premaze in obdelavo lahko najdete v dokumentih, veljavnih na mestu uporabe.
Ta evropski standard vključuje izdelke, navedene v standardih EN 14519, EN 15146 in EN 14951, ter druge izdelke iz masivnega lesa, proizvedene za stenske in stropne opaže.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 14915:2013+A2:2020
01-marec-2020
Nadomešča:
SIST EN 14915:2013+A1:2017
Stenske in stropne obloge iz masivnega lesa - Lastnosti, zahteve in označevanje
Solid wood panelling and cladding - Characteristics, requirements and marking
Wand- und Deckenbekleidungen aus Massivholz - Eigenschaften, Anforderungen und
Kennzeichnung
Lambris et bardages en bois - Caractéristiques, exigences et marquage
Ta slovenski standard je istoveten z: EN 14915:2013+A2:2020
ICS:
79.080 Polizdelki iz lesa Semi-manufactures of timber
SIST EN 14915:2013+A2:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 14915:2013+A2:2020
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SIST EN 14915:2013+A2:2020
EN 14915:2013+A2
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2020
EUROPÄISCHE NORM
ICS 79.080 Supersedes EN 14915:2013+A1:2017
English Version
Solid wood panelling and cladding - Characteristics,
requirements and marking
Lambris et bardages en bois - Caractéristiques, Wand- und Deckenbekleidungen aus Massivholz -
exigences et marquage Eigenschaften, Anforderungen und Kennzeichnung
This European Standard was approved by CEN on 10 April 2017 and includes Amendment 2 approved by CEN on 17 July 2019.
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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14915:2013+A2:2020 E
worldwide for CEN national Members.
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SIST EN 14915:2013+A2:2020
EN 14915:2013+A2:2020 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Durability against biological attack . 5
4.1 Biological durability . 5
4.2 !Wood" treated against biological attack. 6
5 Testing, assessment and sampling methods . 6
5.1 Reaction to fire . 6
5.2 Dangerous substances . 8
5.3 Release of other dangerous substances . 9
5.4 Water vapour permeability . 9
5.5 Sound absorption . 9
5.6 Thermal conductivity .10
5.7 Resistance to fixing .10
6 Assessment and verification of constancy of performance - AVCP .10
6.1 General .10
6.2 Type testing .11
6.3 Factory production control (FPC) .14
7 Marking, labelling and packaging .19
Annex A (informative) Simplified encoding system for solid wood panelling and cladding .20
Annex B (informative) General consideration regarding durability of wood .21
Annex C (normative) Formaldehyde classes .23
Annex ZA (informative) Relationship of this European Standard with Regulation (EU) No.
305/2011 .25
Bibliography .29
2
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SIST EN 14915:2013+A2:2020
EN 14915:2013+A2:2020 (E)
European foreword
This document (EN 14915:2013+A2:2020) has been prepared by Technical Committee CEN/TC 175
“Round and sawn timber”, the secretariat of which is held by AFNOR.
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 July 2020, and conflicting national standards shall be
withdrawn at the latest by October 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 includes Amendment 1 approved by CEN on 10 April 2017 and Amendment 2 approved
by CEN on 17 July 2019.
This document supersedes #EN 14915:2013+A1:2017$.
The start and finish of text introduced or altered by amendment is indicated in the text by tags !"
and #$.
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 Construction Products Regulation (CPR), see informative Annex ZA, which
is an integral part of this standard."
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.
3
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SIST EN 14915:2013+A2:2020
EN 14915:2013+A2:2020 (E)
1 Scope
This European Standard defines and specifies the relevant characteristics and the appropriate test
methods to determine these characteristics for solid wood products to be used as panelling and
cladding (including siding) for:
— wall and ceiling panelling for internal use,
— wall and ceiling cladding for external uses.
!It provides for the assessment and verification of constancy of performance and the requirements
for marking these products."
This European Standard does not cover panels intended for use as stiffening elements.
This European Standard does not cover suspended ceiling in wood panelling and cladding.
This European Standard does not cover the processes for treatment, surface coating or modification.
This European standard does not cover products which are produced from laminated layer section.
This European Standard covers treated, untreated and surface coated products, including those made of
thermally or chemically modified wood, as well as finger jointed and edge glued products.
NOTE Prescriptions for surface coating and treatment can be found in documents valid in the place of use.
This European Standard covers products in compliance with EN 14519, EN 15146 and EN 14951, and
other solid timber products manufactured for use as panelling and cladding.
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 335:2013, Durability of wood and wood-based products - Use classes: definitions, application to solid
wood and wood-based products
!EN 350, Durability of wood and wood-based products - Testing and classification of the durability to
biological agents of wood and wood-based materials"
EN 351-1, Durability of wood and wood-based products - Preservative-treated solid wood - Part 1:
Classification of preservative penetration and retention
EN 599-2, Durability of wood and wood-based products - Performance of preventive wood preservatives as
determined by biological tests - Part 2: Classification and labelling
EN 717-1, Wood-based panels - Determination of formaldehyde release - Part 1: Formaldehyde emission
by the chamber method
EN 717-2, Wood based panels - Determination of formaldehyde release - Part 2: Formaldehyde release by
the gas analysis method
EN 844-9:1997, Round and sawn timber - Terminology - Part 9: Terms relating to features of sawn timber
EN 1309-1:1997, Round and sawn timber - Method of measurement of dimensions - Part 1: Sawn timber
4
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SIST EN 14915:2013+A2:2020
EN 14915:2013+A2:2020 (E)
EN 12664, Thermal performance of building materials and products - Determination of thermal resistance
by means of guarded hot plate and heat flow meter methods - Dry and moist products of medium and low
thermal resistance
EN 13501-1, Fire classification of construction products and building elements - Part 1: Classification
using data from reaction to fire tests
EN 13556, Round and sawn timber - Nomenclature of timbers used in Europe
EN 13756:2002, Wood flooring - Terminology
EN 13986, Wood-based panels for use in construction - Characteristics, evaluation of conformity and
marking
EN ISO 354, Acoustics - Measurement of sound absorption in a reverberation room (ISO 354)
EN ISO 10456:2007, Building materials and products - Hygrothermal properties -Tabulated design values
and procedures for determining declared and design thermal values (ISO 10456:2007)
EN ISO 11654, Acoustics - Sound absorbers for use in buildings - Rating of sound absorption (ISO 11654)
EN ISO 12572, Hygrothermal performance of building materials and products - Determination of water
vapour transmission properties (ISO 12572)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 13756:2002, EN 844-9:1997
and EN 1309-1:1997 and the following apply.
3.1
siding
North American term, synonymous with exterior cladding; material attached to exterior of the building
wall where length predominates over the other two dimensions, having reduced thickness
3.2
assembled panelling/cladding
products put together, according to their method of assembly as given by the manufacturer (e.g. joined
tongue to groove), to form a panelling or cladding assembly
!Note 1 to entry: For the purpose of this document panelling relates to interior applications; cladding to
exterior applications"
!
4 Durability against biological attack
4.1 Biological durability
!If sapwood is not specifically excluded this shall be identified."
If the species is listed in !EN 350", the biological durability shall be as given therein; otherwise it
shall be assessed in accordance with !EN 350".
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EN 14915:2013+A2:2020 (E)
4.2 !Wood" treated against biological attack
4.2.1 General
!Wood" treated against biological attack shall meet regulatory requirements valid in the place of
use of the products.
Preservative treated products shall be defined by:
— use class in accordance with EN 335,
— wood preservative in accordance with EN 599-2,
— penetration class in accordance with EN 351-1,
— retention of preservative in accordance with EN 351-1.
4.2.2 !Wood"
Any machining, boring, planing, etc. shall be completed before preservative treatment. In case of wane,
the bark shall be removed.
4.2.3 Preservatives
Wood preservatives used shall conform to the performance requirements given in EN 599-2
appropriate for the use class.
4.2.4 Penetration
The minimum penetration shall be declared in terms of penetration classes listed in EN 351-1.
4.2.5 Retention
The mean retention in the analytical zone (see EN 351-1) shall be equal to or greater than the retention
requirement for the preservative used in the declared use class.
"
5 Testing, assessment and sampling methods
5.1 Reaction to fire
The reaction to fire performance of a solid wood panelling and cladding product, whether treated or
not, shall be classified in accordance with EN 13501-1, after being tested in accordance with the test
standards given therein and the relevant reaction to fire class declared.
When tested, the product shall be mounted and fixed in accordance with the same mounting and fixing
conditions used for obtaining the classification of products without the need of testing (i.e. those in
relevant footnotes a to j of Table 1). !Given that climatic conditions provided for testing in EN 13501-
1 represent average interior climatic conditions, as an alternative for exterior use to represent average
exterior conditions, the test specimen may be conditioned at 20 °C and 65 % relative humidity."
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EN 14915:2013+A2:2020 (E)
1)
In case the product meets the requirements given in Table 1 it may be classified without the need for
further testing (CWFT) in one of the appropriate classes shown therein. In this case, the relevant
reaction to fire class shall be declared (together with the corresponding mean density of the product,
the overall thickness of the product as well as the end-use conditions).
Table 1 — Classes of reaction to fire performance
Minimum
thickness
Minimum
e total/ d c
Material f
Product detail End-use condition Class
mean density
3
g
(kg/m )
minimum
(mm)
Panelling and Wood pieces with or Without air gap or with
9/6 D - s2,d 2
a without tongue and closed air gap behind
cladding
groove and with or 390
without profiled
12/8 D - s2,d 0
surface
Panelling and Wood pieces with or With open air gap ≤ 20
9/6
b without tongue and mm behind
cladding
groove and with or
390 D - s2,d 0
without profiled
Without air gap or with
18/12
surface
open air gap behind
Wood ribbon Wood pieces Surrounded by open air
h mounted on a j
390 18 D - s2,d 0
elements on all sides
i
support frame
a
Mounted mechanically on a wood batten support frame, with the gap closed or filled with a substrate of at least class A2 - s1,
3
d0 with minimum density of 10 kg/m or filled with a substrate of cellulose insulation material of at least class E and with or
without a vapour barrier behind. The wood product shall be designed to be mounted without open joints.
b
Mounted mechanically on a wood batten support frame, with or without an open air gap behind. The wood product shall be
designed to be mounted without open joints.
c
Class as provided for in Table 1 of the annex to Commission Decision 2000/147/EC.
d
An open air gap may include possibility for ventilation behind the product, while a closed air gap will exclude such ventilation.
3
The substrate behind the air gap shall be of at least class A2 - s1, d0 with a minimum density of 10 kg/m . Behind a closed air gap of
maximum 20 mm and with vertical wood pieces, the substrate may be of at least class D - s2, d0.
e
Joints include all types of joints, e.g. butt joints and tongue and groove joints.
f
Conditioned according to EN 13238.
g
As illustrated in Figure 1 below. Profiled area of the exposed side of the panel not more than 20 % of the plane area, or 25 % if
measured at both exposed and unexposed side of the panel. For butt joints, the larger thickness applies at the joint interface.
h
Rectangular wood pieces, with or without rounded corners, mounted horizontally or vertically on a support frame and
surrounded by air on all sides, mainly used close to other building elements, both in interior and exterior applications.
i
Maximum exposed area (all sides of rectangular wood pieces and wood support frame) not more than 110 % of the total plane
area, see Figure 2.
j
Other building elements closer than 100 mm from the wood ribbon element (excluding its support frame) shall be of at least
class A2 - s1, d0, at distances 100 mm - 300 mm of at least class B - s1, d0 and at distances more than 300 mm of at least class D - s2,
d0.
1)
This table and Figures 1 and 2 correspond to Table 2 and Figures a and b respectively of the Commission Decision
2006/213/EC (OJEU L79/27 of 16.3.2006).
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EN 14915:2013+A2:2020 (E)
Table 1 (continued)
Figure 1 — Profiles for solid wood panelling and cladding
Maximum exposed area of wood ribbon element:
2n (t+w) + a ≤ 1,10
where
n is number of wood pieces per metre
t is thickness of each wood piece, in metre
w is width of each wood piece, in metre
2 2
a is exposed area of wood support frame (if any), in m , per m of wood ribbon
element
Figure 2 — Maximum exposed area
5.2 Dangerous substances
2)
5.2.1 Formaldehyde release
The formaldehyde release of solid wood panelling and cladding products shall be determined according
to Annex C. The declared values !shall be" expressed in term of classes.
5.2.2 Content of pentachlorophenol
Solid wood panelling and cladding as such, without chemical treatment, without adhesive, without
coating or finishing, does not contain PCP. If the product contains raw materials that include PCP (may
concern only soft wood treated against blue stain), then the product shall be tested in accordance with
-6n -6n
is exceeded, the indication “PCP > 5 × 10 shall be added
CEN/TR 14823. In case the value of 5 × 10
-6n -6n
to the marking. In case the value is less than 5 × 10 , the indication PCP ≤ 5 × 10 shall be added to the
marking.
2)
Products CE marked according to this European Standard emitting formaldehyde above class E1 might be prohibited in
some Member States.
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EN 14915:2013+A2:2020 (E)
5.3 Release of other dangerous substances
National regulations on dangerous substances may require, verification and declaration on release, and
sometimes content, of other dangerous substances, in addition to those dealt with in other clauses,
when construction products covered by this standard are placed on those markets.
In the absence of European harmonised 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 web site on EUROPA accessed through:
http://ec.europa.eu/enterprise/construction/cpd-ds/.
5.4 Water vapour permeability
If water vapour permeability is required, either the water vapour resistance factor of the product tested
as assembled panelling shall either be taken from Table 2 or, if the manufacturer wishes to declare a
better value, obtained by testing the product as assembled panelling according to EN ISO 12572.
Table 2 — Characteristic values of water vapour permeability of wood as given in EN
3
ISO 10456:2007 , Table 3
a
Wood type Density Water vapour resistance factor µ
3
kg/m
wet dry
timber 450 20 50
500 20 50
700 50 200
a
For other densities, interpolation is possible.
5.5 Sound absorption
If the sound absorption coefficient of a product is required, it shall either be taken from Table 3 or, if the
manufacturer wishes to declare a better value, obtained by testing the product as assembled panelling
to EN ISO 354 and the result expressed according to EN ISO 11654.
NOTE The sound absorption depends on finishing, geometrical characteristics, etc.
Table 3 — Sound absorption coefficient
Wood type Sound absorption coefficient
Frequency range Frequency range
250 Hz to 500 Hz 1 000 Hz to 2 000 Hz
Solid wood panelling and cladding 0,10 0,30
3
) EN ISO 10456 is currently impacted by EN ISO 10456:2007/AC:2009.
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EN 14915:2013+A2:2020 (E)
5.6 Thermal conductivity
The thermal conductivity shall be determined only for uses subject to thermal insulation requirements
for solid wood panelling !deleted text" for use on internal walls and ceilings. It shall either be
determined according to EN 12664 or given by using tabulated values related to density as shown in
Table 4, taken from EN ISO 10456.
2
The thermal resistance R (m K/W) of solid wood panelling and cladding of uniform thickness is given
by the formula:
t
R =
λ
where
t is the uniform minimum thickness of the wood panelling and cladding, in metres;
λ .
is the thermal conductivity, in W/m K.
Table 4 — Design thermal conductivity values (λ) (in conformity with EN ISO 10456)
a
Wood type Mean density ρ Thermal conductivity λ
at a moisture content of .
in W/(m K) (design value)
3
12 % in kg/m
Solid wood 300 0,09
400 0,11
500 0,13
600 0,15
700 0,18
1 000 0,24
a
For densities not given in this table, λ may be found by interpolation.
5.7 Resistance to fixing
Resistance to fixing of solid wood is dependent on species and with higher density hardwoods may
necessitate pre-drilling, especially if the wood has been dried. For wood species with an average density
3
(at 20 % moisture content) the manufacturer shall indicate whether pre-
greater than 600 kg/m
drilling is either advisable or necessary.
When mechanically fixed (by means of nails, anchors, etc.) to walls/ceiling, the panelling/cladding shall
be designed to take into account its own weight and other possible loads acting on it, e.g. wind load.
!
6 Assessment and verification of constancy of performance - AVCP
6.1 General
The compliance of solid wood panelling product and cladding product with the requirements of this
standard and with the performance declared by the manufacturer in the DoP shall be demonstrated by:
— determination of the product-type on the basis of type testing;
— factory production control by the manufacturer, including product assessment.
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6.2 Type testing
6.2.1 General
Performance related to characteristics included in this standard shall be determined when the
manufacturer intends to declare the respective performance unless the standard gives provisions for
declaring them without performing tests. (e.g. use of previously existing data, CWFT and conventionally
accepted performance).
Assessment previously performed in accordance with the provisions of this standard, may be taken into
account provided that they were made to the same or a more rigorous test method, under the same
AVCP system on the same product-type, such that the results are applicable to the product in question.
NOTE 1 Same AVCP system means testing by an independent third party laboratory where relevant, under the
responsibility of a notified product certification body where relevant.
For the purposes of assessment, the manufacturer's products may be grouped into families, where it is
considered that the results for one or more characteristics from any one product within the family are
representative for that same characteristics for all products within that same family.
NOTE 2 Products may be grouped in different families for different characteristics.
Reference to the assessment method standards should be made to allow the selection of a suitable
representative sample.
In addition, the determination of the product-type shall be performed for all essential characteristics
included in the standard for which the manufacturer declares the performance:
— at the beginning of the production of a new or modified solid wood panelling product and cladding
product (unless it is a member of a same product range), or
— at the beginning of a new or modified method of production (where this may affect the stated
properties); or
— they shall be repeated for the appropriate essential characteristic(s), whenever a change occurs in
the solid wood panelling product and cladding product design, in the raw material or in the
supplier of the components, or in the method of production (subject to the definition of a family),
which would affect significantly one or more of the performance.
Where components are used whose performance have already been determined, by the component
manufacturer, on the basis of assessment methods of other product standards, these performance need
not be re-assessed. The specifications of these components shall be documented.
Products bearing regulatory marking in accordance with appropriate harmonized European
specifications may be presumed to have the performance declared in the DoP, although this does not
replace the responsibility on solid wood panelling product and cladding product manufacturer to
ensure that the solid wood panelling product and cladding product as a whole is correctly
manufactured and its component products have the declared performance values.
6.2.2 Test samples, testing and compliance criteria
The number of samples of solid wood panelling product and cladding product to be tested/assessed
shall be in accordance with Table 5.
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SIST EN 14915:2013+A2:2020
EN 14915:2013+A2:2020 (E)
Table 5 — Number of samples to be tested and compliance criteria
No. of
samples Compliance criteria
Assessment
Characteristic Requirement
method
[to be
assessed]
Reaction to fire 5.1 Table 1 or CWFT, Table 1
EN 13501-1 see Table 1
Classes according to
EN 13501-1 EN 13501-1
Release of dangerous substances
Release of 5.2.1 Annex C see Annex C Only for internal use
formaldehyde According to Annex C
E1 or E2
Content of 5.2.2 CEN/TR 14823 See Only for internal use
CEN/TR 14823
pentachlorophenol according to
CEN/TR 14823
-6n
> 5 × 10 or
-6n
≤ 5 × 10
Release of other 5.3 - As relevant Only for internal use
according to
dangerous As relevant acc. to 5.3
5.3
substances
Water vapour 5.4 Table 2 or - Not when there is an
EN ISO 12572 air gap between
permeability
cladding/panelling
and wall.
Tested in accordance
with 5.4 and value
not under declared
value.
Sound absorption 5.5 Table 3 or - Only for internal use
EN ISO 354
Value not under
declared value
Thermal resistance 5.6 5.6 - Only for internal use
expressed as See 5.6
thermal Value not under
declared value
conductivity
Resistance to 5.7 5.7 - See 5.7
fixings
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SIST EN 14915:2013+A2:2020
EN 14915:2013+A2:2020 (E)
No. of
samples Compliance criteria
Assessment
Characteristic Requirement
method
[to be
assessed]
Durability
Biological 4.1 For species listed - Natural durability in
in EN 350 accordance with
durability
EN 350
For species and
origins not listed Value same as the
in EN 350, declared value
assessed
according to
EN 350
Wood treated 4.2 See 4.2.1 - See 4.2.1
against biological
attack
6.2.3 Test reports
The results of the determination of the product type shall be documented in test reports. All
...
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