SIST EN 14915:2013
(Main)Solid wood panelling and cladding - Characteristics, evaluation of conformity and marking
Solid wood panelling and cladding - Characteristics, evaluation of conformity 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 evaluation of conformity 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, Bewertung der Konformität 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 Abdeckplatten, 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, Beschichtung oder Modifizierung.
ANMERKUNG Vorschriften für die Oberflächenbehandlung können in anderen, am Verwendungsort gültigen Dokumen¬ten gefunden werden.
Diese Europäische Norm gilt nicht für Produkte, die aus schichtverklebten Teilen hergestellt sind.
Diese Europäische Norm gilt für behandelte, unbehandelte und beschichtete Produkte, einschließlich ther-misch oder chemisch modifizierter Hölzer sowie für keilgezinkte und kantenverleimte Produkte.
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 bois - Caractéristiques, évaluation de conformité 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.
NOTE Les prescriptions de finition et de traitement sont à rechercher dans les exigences prescrites pour le lieu d'utilisation
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.
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.
Notranje in zunanje obloge iz masivnega lesa - Lastnosti, vrednotenje skladnosti 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 stenske in stropne opaže za:
- stenske in stropne opaže za notranjo uporabo,
- stenske in stropne opaže za zunanjo uporabo.
Prav tako določa zahteve glede vrednotenja skladnosti in označevanja teh izdelkov.
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, in druge izdelke iz masivnega lesa, proizvedene za stenske in stropne opaže.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Wand- und Deckenbekleidungen aus Massivholz - Eigenschaften, Bewertung der Konformität und KennzeichnungLambris et bardages bois - Caractéristiques, évaluation de conformité et marquageSolid wood panelling and cladding - Characteristics, evaluation of conformity and marking79.080Polizdelki iz lesaSemi-manufactures of timberICS:Ta slovenski standard je istoveten z:EN 14915:2013SIST EN 14915:2013en,fr,de01-december-2013SIST EN 14915:2013SLOVENSKI
STANDARDSIST EN 14915:2007/AC:2007SIST EN 14915:20071DGRPHãþD
SIST EN 14915:2013
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14915
September 2013 ICS 79.080 Supersedes EN 14915:2006English Version
Solid wood panelling and cladding - Characteristics, evaluation of conformity and marking
Lambris et bardages bois - Caractéristiques, évaluation de conformité et marquage
Wand- und Deckenbekleidungen aus Massivholz - Eigenschaften, Bewertung der Konformität und Kennzeichnung This European Standard was approved by CEN on 8 August 2013.
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 worldwide for CEN national Members. Ref. No. EN 14915:2013: ESIST EN 14915:2013
EN 14915:2013 (E) 2 Contents
Page Foreword . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 6 4 Requirements . 6 4.1 General . 6 4.2 Characteristics for solid wood panelling for use on internal walls and ceilings . 6 4.3 Characteristics for solid wood sidings for use on internal walls . 7 4.4 Characteristics for solid wood sidings for use on external walls . 7 4.5 Characteristics for solid wood cladding for use on external walls and ceilings . 7 4.6 Durability against biological attack . 8 4.6.1 Biological durability. 8 4.6.2 Timber treated against biological attack . 8 5 Testing, assessment and sampling methods . 8 5.1 Reaction to fire . 8 5.2 Dangerous substances . 10 5.2.1 Formaldehyde release . 10 5.2.2 Content of pentachlorophenol . 11 5.3 Release of other dangerous substances . 11 5.4 Water vapour permeability . 11 5.5 Sound absorption . 11 5.6 Thermal conductivity . 12 5.7 Resistance to fixing . 12 6 Evaluation of conformity . 13 6.1 General . 13 6.2 Initial type testing or assessment . 13 6.3 Factory production control (FPC) . 13 6.3.1 General . 13 6.3.2 Procedures when control criteria are not met . 13 6.3.3 Record of documentation . 14 6.3.4 FPC testing . 14 7 Marking, labelling and packaging . 15 Annex A (informative)
Simplified encoding system for solid wood panelling and cladding . 16 Annex B (informative)
General consideration regarding durability of wood . 17 B.1 General precautions (based on EN 335:2013) . 17 B.2 Natural or conferred durability of solid wood (extract from EN 335:2013) . 17 B.3 Construction . 18 Annex C (normative)
Formaldehyde classes . 19 C.1 General . 19 C.2 Panelling and cladding to be tested . 19 C.3 Materials to be tested . 19 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive . 21 ZA.1 Scope and relevant characteristics . 21 ZA.2 Procedure for the attestation of conformity of solid wood panelling and cladding . 23 ZA.2.1 Systems of attestation of conformity . 23 ZA.2.2 EC Certificate and Declaration of Conformity . 25 ZA.3 CE marking and labelling . 27 SIST EN 14915:2013
EN 14915:2013 (E) 3 Bibliography . 30
SIST EN 14915:2013
EN 14915:2013 (E) 4 Foreword This document (EN 14915:2013) 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 March 2014, and conflicting national standards shall be withdrawn at the latest by March 2014. 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 14915:2006. In comparison with the previous edition, the entire document has been revised. 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. 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, 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 the United Kingdom. SIST EN 14915:2013
EN 14915:2013 (E) 5 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 evaluation of conformity 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 350-1, Durability of wood and wood-based products — Natural durability of solid wood — Part 1: Guide to the principles of testing and classification of the natural durability of wood EN 350-2, Durability of wood and wood-based products — Natural durability of solid wood — Part 2: Guide to natural durability and treatability of selected wood species of importance in Europe 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 SIST EN 14915:2013
EN 14915:2013 (E) 6 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 4 Requirements
4.1 General Characteristics shall be assessed and declared when subject to regulatory requirements and may be assessed and declared when not subject to such requirements. 4.2 Characteristics for solid wood panelling for use on internal walls and ceilings The following characteristics shall be determined: reaction to fire: see 5.1, release of formaldehyde: see 5.2.1, content of pentachlorophenol: see 5.2.2, water vapour permeability: see 5.4, SIST EN 14915:2013
EN 14915:2013 (E) 7 sound absorption: see 5.5, thermal conductivity: see 5.6, resistance to fixings: see 5.7, release of other dangerous substance: see 5.3. 4.3 Characteristics for solid wood sidings for use on internal walls The following characteristics shall be determined: reaction to fire: see 5.1, release of formaldehyde: see 5.2.1, content of pentachlorophenol: see 5.2.2, release of other dangerous substance: see 5.3, thermal conductivity: see 5.6, resistance to fixings: see 5.7. 4.4 Characteristics for solid wood sidings for use on external walls The following characteristics shall be determined: reaction to fire: see 5.1, content of pentachlorophenol: see 5.2.2, release of other dangerous substance: see 5.3, water vapour permeability: see 5.4, thermal conductivity: see 5.6, resistance to fixings: see 5.7. 4.5 Characteristics for solid wood cladding for use on external walls and ceilings The following characteristics shall be determined: reaction to fire: see 5.1, content of pentachlorophenol: see 5.2.2, release of other dangerous substance: see 5.3, water vapour permeability: see 5.4, thermal conductivity: see 5.6, resistance to fixings: see 5.7. SIST EN 14915:2013
EN 14915:2013 (E) 8 4.6 Durability against biological attack 4.6.1 Biological durability If the species is listed in EN 350-2, the biological durability shall be as given therein; otherwise it shall be assessed in accordance with EN 350-1. 4.6.2 Timber treated against biological attack 4.6.2.1 General Timber 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. 4.6.2.2 Timber Any machining, boring, planing, etc. shall be completed before preservative treatment. In case of wane, the bark shall be removed. 4.6.2.3 Preservatives Wood preservatives used shall conform to the performance requirements given in EN 599-2 appropriate for the use class.
4.6.2.4 Penetration The minimum penetration shall be declared in terms of penetration classes listed in EN 351-1. 4.6.2.5 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). SIST EN 14915:2013
EN 14915:2013 (E) 9 In case the product meets the requirements given in Table 11) 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
Material
Product detail e Minimum mean density f (kg/m3) Minimum thickness total/ minimum g
(mm) End-use condition d
Class c
Panelling
and cladding a
Wood pieces with or without tongue and groove and with or without profiled surface 390 9/6 Without air gap or with closed air gap behind D - s2,d 2 12/8 D - s2,d 0 Panelling and cladding b
Wood pieces with or without tongue and groove and with or without profiled surface 390 9/6 With open air gap ≤ 20 mm behind D - s2,d 0 18/12 Without air gap or with open air gap behind Wood ribbon elements h
Wood pieces mounted on a support frame i
390 18 Surrounded by open air on all sides j
D - s2,d 0 a Mounted mechanically on a wood batten support frame, with the gap closed or filled with a substrate of at least class A2 - s1, d0 with minimum density of 10 kg/m3 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. The substrate behind the air gap shall be of at least class A2 - s1, d0 with a minimum density of 10 kg/m3. 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). SIST EN 14915:2013
EN 14915:2013 (E) 10
Table 1 (continued)
Figure 1 – Profiles for solid wood panelling and cladding
Maximum exposed area of wood ribbon element:
2n (t+wc + 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 a
is exposed area of wood support frame (if any), in m2, per m2 of wood ribbon element Figure 2 – Maximum exposed area 5.2 Dangerous substances 5.2.1 Formaldehyde release2)
The formaldehyde release of solid wood panelling and cladding products shall be determined according to Annex C. The declared values are expressed in term of classes.
2) Products CE marked according to this European Standard emitting formaldehyde above class E1 might be prohibited in some Member States. SIST EN 14915:2013
EN 14915:2013 (E) 11 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 CEN/TR 14823. In case the value of 5 × 10-6n is exceeded, the indication “PCP > 5 × 10-6n shall be added to the marking. In case the value is less than 5 × 10-6n, the indication PCP ≤ 5 × 10-6n shall be added to the marking. 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 ISO 10456:20073), Table 3 Wood type Density a
kg/m3 Water vapour resistance factor µ wet dry
timber 450 500 700
20 20 50
50 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.
3) EN ISO 10456 is currently impacted by EN ISO 10456:2007/AC:2009. SIST EN 14915:2013
EN 14915:2013 (E) 12 Table 3 – Sound absorption coefficient
Wood type Sound absorption coefficient Frequency range 250 Hz to 500 Hz Frequency range 1 000 Hz to 2 000 Hz Solid wood panelling and cladding 0,10 0,30 5.6 Thermal conductivity The thermal conductivity shall be determined only for uses subject to thermal insulation requirements for solid wood panelling or sidings 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. The thermal resistance R (m2 K/W) of solid wood panelling and cladding of uniform thickness is given by the formula: 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 () (in conformity with EN ISO 10456) Wood type Mean densitya
at a moisture content of 12 % in kg/m3 Thermal conductivity
in W/(m.K) (design value)
Solid wood 300 400 500 600 700 1 000 0,09 0,11 0,13 0,15 0,18 0,24 a
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 greater than 600 kg/m3 (at 20 % moisture content) the manufacturer shall indicate whether pre-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.
λtR=SIST EN 14915:2013
EN 14915:2013 (E) 13 6 Evaluation of conformity 6.1 General The conformity of solid wood panelling and cladding products with the requirements of this European Standard shall be demonstrated by: initial type testing or assessment, factory production control by the manufacturer. Sampling shall be carried out at random if tests are necessary. 6.2 Initial type testing or assessment Initial type testing/assessment shall be performed to demonstrate conformity with this standard or be demonstrated according to information given in this standard. Tests previously performed in accordance with the provisions of this standard (same product, same characteristic, test method, system of attestation of conformity, etc.) may be taken into account for initial type testing. For the purposes of testing, products may be grouped into families, where it is considered that the result for a given characteristic from any one product within the family are representative for all other products within that family. When the product specification is amended, which could significantly change one or more of the characteristics (listed in 4.2 to 4.6 and Clause 5), the type assessment or testing shall be repeated for the appropriate characteristic(s). The verification of the characteristic(s) itself is not necessary when tabulated values of Clause 5 are used. Where wood panelling and cladding products are made from raw materials for which one or more of the characteristics in 4.2 to 4.6 and Clause 5 are already known (e.g. by the material being CE marked), the testing or assessment of such characteristics does not need to repeated for the finished product, as long as the manufacturing process does not change these characteristics. All initial type test reports shall be kept for 10 years after the date of last production of the products to which they apply. 6.3 Factory production control (FPC) 6.3.1 General The producer shall define his own control system. The producer shall establish and maintain a documentation and a production control system to ensure that the products placed on the market conform with th
...
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Wand- und Deckenbekleidungen aus Massivholz - Eigenschaften, Bewertung der Konformität und KennzeichnungLambris et bardages bois - Caractéristiques, évaluation de conformité et marquageSolid wood panelling and cladding - Characteristics, evaluation of conformity and marking79.080Polizdelki iz lesaSemi-manufactures of timberICS:Ta slovenski standard je istoveten z:FprEN 14915kSIST FprEN 14915:2013en,fr,de01-april-2013kSIST FprEN 14915:2013SLOVENSKI
STANDARD
kSIST FprEN 14915:2013
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
FINAL DRAFT
FprEN 14915
February 2013 ICS 79.080 Will supersede EN 14915:2006English Version
Solid wood panelling and cladding - Characteristics, evaluation of conformity and marking
Lambris et bardages bois - Caractéristiques, évaluation de conformité et marquage
Wand- und Deckenbekleidungen aus Massivholz - Eigenschaften, Bewertung der Konformität und Kennzeichnung This draft European Standard is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee CEN/TC 175.
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
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. FprEN 14915:2013: EkSIST FprEN 14915:2013
FprEN 14915:2013 (E) 2 Contents
Page Foreword . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 6 4 Requirements . 6 4.1 General . 6 4.2 Characteristics for solid wood panelling for use on internal walls and ceilings . 6 4.3 Characteristics for solid wood sidings for use on internal walls . 7 4.4 Characteristics for solid wood sidings for use on external walls . 7 4.5 Characteristics for solid wood cladding for use on external walls and ceilings . 7 4.6 Durability against biological attack . 8 4.6.1 Biological durability . 8 4.6.2 Timber treated against biological attack . 8 5 Testing, assessment and sampling methods . 8 5.1 Reaction to fire . 8 5.2 Dangerous substances . 10 5.2.1 Formaldehyde release
........................................................................................................................... 10 5.2.2 Content of pentachlorophenol ............................................................................................................... 11 5.3 Release of other dangerous substances .............................................................................................. 11 5.4 Water vapour permeability ..................................................................................................................... 11 5.5 Sound absorption................................................................................................................................... 11 5.6 Thermal conductivity ............................................................................................................................. 12 5.7 Resistance to fixing ............................................................................................................................... 12 6 Evaluation of conformity........................................................................................................................ 12 6.1 General ................................................................................................................................................... 12 6.2 Initial type testing or assessment ......................................................................................................... 13 6.3 Factory production control (FPC) .......................................................................................................... 13 6.3.1 General ................................................................................................................................................... 13 6.3.2 Procedures when control criteria are not met ...................................................................................... 13 6.3.3 Record of documentation ...................................................................................................................... 13 6.3.4 FPC testing ............................................................................................................................................. 13 7 Marking, labelling and packaging .......................................................................................................... 15 Annex A (informative)
Simplified encoding system for solid wood panelling and cladding . 16 Annex B (informative)
General consideration regarding durability of wood . 17 B.1 General precautions (based on EN 335-2:2006, Annex 3) . 17 B.2 Natural or conferred durability of solid wood (extract from EN 335-2:2006, Annex 4) . 17 B.3 Construction . 18 Annex C (normative)
Formaldehyde classes . 19 C.1 General . 19 C.2 Panelling and cladding to be tested . 19 C.3 Materials to be tested . 19 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive . 21 ZA.1 Scope and relevant characteristics . 21 ZA.2 Procedure for the attestation of conformity of solid wood panelling and cladding . 23 ZA.2.1 Systems of attestation of conformity . 23 ZA.2.2 EC Certificate and Declaration of Conformity . 25 ZA.3 CE marking and labelling . 27 kSIST FprEN 14915:2013
FprEN 14915:2013 (E) 3 Bibliography . 30
kSIST FprEN 14915:2013
FprEN 14915:2013 (E) 4 Foreword This document (FprEN 14915:2013) has been prepared by Technical Committee CEN/TC 175 “Round and sawn timber”, the secretariat of which is held by AFNOR. This document is currently submitted to the Unique Acceptance Procedure. This document will supersede EN 14915:2006. 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. kSIST FprEN 14915:2013
FprEN 14915:2013 (E) 5 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 evaluation of conformity 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. NOTE Prescriptions for surface coating and treatment can be found in documents valid in the place of use. 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. 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 335-2:2006, Durability of wood and wood-based products — Definition of use classes — Part 2: Application to solid wood EN 350-1, Durability of wood and wood-based products — Natural durability of solid wood — Part 1: Guide to the principles of testing and classification of the natural durability of wood EN 350-2, Durability of wood and wood-based products — Natural durability of solid wood — Part 2: Guide to natural durability and treatability of selected wood species of importance in Europe 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 kSIST FprEN 14915:2013
FprEN 14915:2013 (E) 6 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 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 4 Requirements
4.1 General Characteristics shall be assessed and declared when subject to regulatory requirements and may be assessed and declared when not subject to such requirements. 4.2 Characteristics for solid wood panelling for use on internal walls and ceilings The following characteristics shall be determined: reaction to fire: see 5.1, release of formaldehyde: see 5.2.1, content of pentachlorophenol: see 5.2.2, water vapour permeability: see 5.4, kSIST FprEN 14915:2013
FprEN 14915:2013 (E) 7 sound absorption: see 5.5, thermal conductivity: see 5.6, resistance to fixings: see 5.7, release of other dangerous substance: see 5.3. 4.3 Characteristics for solid wood sidings for use on internal walls The following characteristics shall be determined: reaction to fire: see 5.1, release of formaldehyde: see 5.2.1, content of pentachlorophenol: see 5.2.2, release of other dangerous substance: see 5.3, thermal conductivity: see 5.6, resistance to fixings: see 5.7. 4.4 Characteristics for solid wood sidings for use on external walls The following characteristics shall be determined: reaction to fire: see 5.1, content of pentachlorophenol: see 5.2.2, release of other dangerous substance: see 5.3, water vapour permeability: see 5.4, thermal conductivity: see 5.6, resistance to fixings: see 5.7. 4.5 Characteristics for solid wood cladding for use on external walls and ceilings The following characteristics shall be determined: reaction to fire: see 5.1, content of pentachlorophenol: see 5.2.2, release of other dangerous substance: see 5.3, water vapour permeability: see 5.4, thermal conductivity: see 5.6, resistance to fixings: see 5.7. kSIST FprEN 14915:2013
FprEN 14915:2013 (E) 8 4.6 Durability against biological attack 4.6.1 Biological durability If the species is listed in EN 350-2, the biological durability shall be as given therein; otherwise it shall be assessed in accordance with EN 350-1. 4.6.2 Timber treated against biological attack 4.6.2.1 General Timber 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 335-2, 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. 4.6.2.2 Timber Any machining, boring, planing etc. shall be completed before preservative treatment. In case of wane, the bark shall be removed. 4.6.2.3 Preservatives Wood preservatives used shall conform to the performance requirements given in EN 599-2 appropriate for the use class.
4.6.2.4 Penetration The minimum penetration shall be declared in terms of penetration classes listed in EN 351-1. 4.6.2.5 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 notes 1 to 11 of Table 1) kSIST FprEN 14915:2013
FprEN 14915:2013 (E) 9 In case the surface coated product meets the requirements given in Table 11) 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
Material k Product detaile Minimum mean densityf (kg/m³) Minimum thickness total/ minimumg
(mm) End-use conditiond
Classc
Panelling
and claddinga
Wood pieces with or without tongue and groove and with or without profiled surface 390 9/6 Without air gap or with closed air gap behind D - s2,d 2 12/8 D - s2,d 0 Panelling and claddingb
Wood pieces with or without tongue and groove and with or without profiled surface 390 9/6 With open air gap
Wood pieces mounted on a support framei
390 18 Surrounded by open air on all sidesj
D - s2,d 0 a Mounted mechanically on a wood batten support frame, with the gap closed or filled with a substrate of at least class A2 - s1, d0 with minimum density of 10 kg/m3 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. The substrate behind the air gap must be of at least class A2 - s1, d0 with a minimum density of 10 kg/m3. 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 a 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 b. j Other building elements closer than 100 mm from the wood ribbon element (excluding its support frame) must be of at least class A2 - s1, d0, at distances 100 - 300 mm of at least class B - s1, d0 and at distances more than 300 mm of at least class D - s2, d0. k Applies also to stairs.
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 L71 of 16.3.2006) kSIST FprEN 14915:2013
FprEN 14915:2013 (E) 10
Table 1 (continued)
Figure 1 – Profiles for solid wood panelling and cladding
Maximum exposed area of wood ribbon element: 2n (t+w) + a ≤ 1,1M 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
a
is exposed area of wood support frame (if any), in m2, per m2 of wood ribbon element Figure 2 – Maximum exposed area 5.2 Dangerous substances 5.2.1 Formaldehyde release 2)
The formaldehyde release of solid wood panelling and cladding products shall be determined according to Annex C. The declared values are expressed in term of classes.
2) Products CE marked according to this European Standard emitting formaldehyde above class E1 might be prohibited in some Member States. kSIST FprEN 14915:2013
FprEN 14915:2013 (E) 11 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 CEN/TR 14823. In case the value of 5 × 10-6n is exceeded, the indication “PCP > 5 × 10-6n shall be added to the marking. In case the value is less than 5 × 10-6n, the indication PCP ≤ 5 × 10-6n
shall be added to the marking. 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 ISO 10456:2007, Table 3 Wood type Densitya
kg/m3 Water vapour resistance factor µ wet dry
timber 450 500 700
20 20 50
50 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 250 Hz to 500 Hz Frequency range 1000 Hz to 2000 Hz Solid wood panelling and cladding 0,10 0,30 kSIST FprEN 14915:2013
FprEN 14915:2013 (E) 12 5.6 Thermal conductivity The thermal conductivity shall be determined only for uses subject to thermal insulation requirements. 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 12524. The thermal resistance R (m2 K/W) of solid wood panelling and cladding of uniform thickness is given by the formula: where
t is the uniform thickness of the wood panelling and cladding in m; λ is the thermal conductivity in W/m K. Table 4 – Design thermal conductivity values () (in conformity with EN 12524) Wood type Mean densitya
at a moisture content of 12 % in kg/m3 Thermal conductivity
in W/(m K) (design value)
Solid wood 300 400 500 600 700 1000 0,09 0,11 0,13 0,15 0,18 0,24 a For densities not given in this tabl
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 greater than 600 kg/m³ (at 20 % moisture content) the manufacturer shall indicate whether pre-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 Evaluation of conformity 6.1 General The conformity of solid wood panelling and cladding products with the requirements of this standard shall be demonstrated by: initial type testing or assessment, factory production control by the manufacturer. Sampling shall be carried out at random if tests are necessary.
λtR=kSIST FprEN 14915:2013
FprEN 14915:2013 (E) 13 6.2 Initial type testing or assessment Initial type testing/assessment shall be performed to demonstrate conformity with this standard or be demonstrated according to information given in this standard. Tests previously performed in accordance with the provisions of this standard (same product, same characteristic, test method, system of attestation of conformity, etc.) may be taken into account for initial type testing. For the purposes of testing, products may be grouped into families, where it is considered that the result for a given characteristic from any one product within the family are representative for all other products within that family. When the product specification is amended, which could significantly change one or more of the characteristics (listed in 4.2 to 4.6 and Clause 5), the type assessment or testing shall be repeated for the appropriate characteristic(s). The verification of the characteristic(s) itself is not necessary when tabulated values of Clause 5 are used. Where wood panelling and cladding products are made from raw materials for which one or more of the characteristics in 4.2 to 4.6 and Clause 5 are already known (e.g. by the material being CE marked), the testing or assessment of such characteristics does not need to repeated for the finished product, as long as the manufacturing process does not change these characteristics. All initial type test reports shall be kept for 10 years after the date of last production of the products to which they apply. 6.3 Factory production control (FPC) 6.3.1 General The producer shall define his own control system. The producer shall establish and maintain a documentation and a production control system to ensure that the products placed on the market conform with the stated performance characteristics. The control system shall consist of procedures, regular inspections and test/or assessment; the results shall be used to control raw and other incoming materials or components, equipment, the production process and the product shall be sufficiently detailed to ensure that the conformity of the product is apparent. If the manufacturer operates a factory production control system conforming to EN ISO 9001, and made specific to the requirements of this standard, the above requirements are considered to be satisfied. The performance characteristics relevant to the intended application shall be controlled according to the provisions of 6.3.4. 6.3.2 Procedures when control criteria are not met Procedures to be followed when control values and criteria are not met shall be established by the producer. 6.3.3 Record of documentation The result of inspections, tests or assessments requiring action
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.