EN 14915:2013+A2:2020

SLOVENSKI STANDARD
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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.

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

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.
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
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".
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 f
...