EN 15146:2006

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Solid softwood panelling and cladding - Machined profiles without tongue and grooveNotranje in zunanje obloge iz masivnega lesa - Profili brez utora in peresaLambris et bardages en bois massif résineux - Profilés usinés sans rainure et languetteInnen- und Außenbekleidungen aus massivem Nadelholz - Profilholz ohne Nut und FederTa slovenski standard je istoveten z:EN 15146:2006SIST EN 15146:2007en79.080Polizdelki iz lesaSemi-manufactures of timberICS:SLOVENSKI
STANDARDSIST EN 15146:200701-marec-2007

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15146December 2006ICS 79.080 English VersionSolid softwood panelling and cladding - Machined profileswithout tongue and grooveLambris et bardages en bois massif résineux - Profilésusinés sans rainure et languetteInnen- und Außenbekleidungen aus massivem Nadelholz -Profilholz ohne Nut und FederThis European Standard was approved by CEN on 5 November 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15146:2006: E

Sampling.16 Annex B (informative)
Principles for the classification of the free grade.17 Bibliography.18

Products are intended for interior or exterior use. Coatings and finishings are not dealt with in this European Standard. NOTE products sold in the European Economic Area will have to comply with EN 14915. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. 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 844-3:1995, Round and sawn timber - Terminology - Part 3: General terms relating to sawn timber EN 844-4:1997, Round and sawn timber - Terminology - Part 4: Terms relating to moisture content EN 844-5:1997, Round and sawn timber - Terminology - Part 5: Terms relating to dimensions of round timber EN 844-6:1997, Round and sawn timber - Terminology - Part 6: Terms relating to dimensions of sawn timber EN 844-7:1997, Round and sawn timber - Terminology - Part 7: Terms relating to anatomical structure of timber
EN 844-8:1997, Round and sawn timber - Terminology - Part 8: Terms relating to features of round timber EN 844-9:1997, Round and sawn timber - Terminology - Part 9: Terms relating to features of sawn timber EN 844-10:1998, Round and sawn timber - Terminology - Part 10: Terms relating to stain and fungal attack EN 844-11:1998, Round and sawn timber - Terminology - Part 11: Terms relating to degrade by insects EN 844-12:2000, Round and sawn timber - Terminology - Part 12: Additional terms and general index EN 1309-1:1997, Round and sawn timber- Method of measurement of dimensions – Part 1: Sawn timber EN 1310:1997, Round and sawn timber - Method of measurement of features EN 13183-1, Moisture content of a piece of sawn timber – Part 1: Determination by oven dry method EN 13183-2, Moisture content of a piece of sawn timber – Part 2: Estimation by electrical resistance method EN 13556, Round and sawn timber – Nomenclature of timbers used in Europe EN 13647, Wood and parquet flooring and wood panelling and cladding – Determination of geometrical characteristics EN 13756:2002, Wood flooring – Terminology

EN 844-3:1995, EN 844:1997 parts 4 through 9, EN 844:1998 parts 10 and 11, EN 844-12:2000,
EN 1309-1:1997 and the following apply. 3.1 panelling and cladding without tongue and groove boards of solid wood without “tongue and groove” which have been machined on the face and two edges.
NOTE The back is either machined or hit and/or missed, depending on the product. For special purposes (for instance, acoustic) the edges may have fastening slots. The ends of the boards may be end matched 3.2 end matching any profile for connection at the end of the panelling or cladding including tongue and/or groove 3.3 panelling elements of solid wood mainly for interior use 3.4 cladding elements of solid wood mainly for exterior use 3.5 face visible surface of an element NOTE Includes edges and chamfer. 4 Symbols and abbreviations Symbols and abbreviations used in this European Standard are given in Figure 1 and in Table 3 and Table 4. 5 Requirements 5.1 General The softwood species shall be selected with regard to the appearance expected, the suitability for the intended purpose and the general characteristics of the species itself. All requirements apply at the time of production unless the manufacturer states otherwise. 5.2 Appearance and finishing 5.2.1 General Grading applies to the face only, unless otherwise specified.
Machining requirements are covered in 5.4.4 and apply to all grades of all species. Natural variation within a single species is generally accepted as a common feature of wood and is not considered for classification of appearance, with the exception of free grade. Measuring features shall be in accordance with EN 1310. Concerning knots the general method in EN 1310:1997, 4.1.1, applies. The boards may be finished with surface coating. The grading shall be done before coating.

Table 1 — Grading classes of the wood species - Spruces (Picea spp.), fir (Abiea spp.), pine (Pinus spp.), larch (Larix spp.), and European Douglas fir (Pseudotsuga menziesii) Features a b c Grade A Grade B Knots permitted: - black pin knots up to 5 mm if not in clusters; - sound intergrown knots up to 10 % of the width plus 30 mm; - partially intergrown knots, barkringed knots, splay knots and dead knots (not loose); - spruce/fir, and larch: up to 10 % of the width plus15 mm; - pine, and Douglas Fir: up to 10 % of the
width plus 30 mm; - occasional small missing and damaged arris knots up to 20 % of the largest acceptable knot size provided coverage is not affected; - knot-plugs of the same wood species, up to the largest allowed knot size. not permitted: - loose knots, knot-holes and unsoun
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