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EN 16351:2015

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Timber structures - Cross laminated timber - Requirements

Superseded date

11-03-2021

Superseded by

EN 16351:2021

Published date

14-10-2015

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European foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Components and product characteristics, testing
  and assessment methods
6 Assessment and Verification of Constancy of
  Performance (AVCP)
7 Marking and labelling
Annex A (normative) - Release of Formaldehyde
Annex B (normative) - Additional test methods and
        requirements for adhesives
Annex C (normative) - Delamination test of glue lines
        between layers
Annex D (normative) - Shear tests
Annex E (normative) - Tests with laminations with or
        without finger joints (including compliance criteria)
Annex F (normative) - Determination of strength, stiffness
        and density properties of cross laminated timber
Annex G (normative) - Measurement of moisture content
Annex H (normative) - Separation tests with finger joints
        in laminations produced with contact-free application
        of adhesive
Annex I (normative) - Minimum production requirements
Annex ZA (informative) - Clauses of this European Standard
         addressing the requirements of the EU Construction
         Products Regulation
Bibliography

This European Standard sets out provisions regarding the performance characteristics for straight and curved structural cross laminated timber (X-Lam) both without and with large finger joints as a material for the manufacture of structural elements to be used in buildings and bridges.This European Standard applies to cross laminated timber:-to be used in service class 1 or 2 according to EN 1995 1 1;-made of coniferous species and poplar listed in 5.1.5 of this standard;-built up of at least three orthogonally bonded layers (at least two of them timber layers);-having, depending on the number of layers, adjacent layers which may be bonded parallel to the grain;-made of timber layers which are made of strength graded timber according to EN 14081 1;-made of timber layers having thicknesses between 6 mm and 60 mm (including) taking into account the layup requirements given in this European standard;-made of timber layers which may be edge bonded or which are not bonded and have spacing less than 6 mm between adjacent laminations;-which may comprise wood based panel layers made of structural wood based panels specified in this European standard, fulfilling the requirements for use in service class 2 or 3 according to EN 1995 1 1, having no structural joints between the single panels and having thicknesses between 6 mm and 45 mm (including);-bonded with adhesives, fulfilling the requirements given in this European standard;-having overall thicknesses up to 500 mm;-which is not made from reused timber or wood based panels comprising reused timber.This European Standard also applies to cross laminated timber with large finger joints:-made from cross laminated timber pieces having the same cross section and layup;-made from cross laminated timber pieces having cross sectional thicknesses from 51 mm up to 345 mm (inclusive) and minimum thicknesses of the outermost layers not less than 17 mm.-made from cross laminated timber pieces solely comprising timber layers;-made from plane cross laminated timber pieces jointed so that no regular change between the grain directions of the layers occurs;-with finger joints having a finger length of at least 45 mm and fingers which are visible at the two narrow sides of the components.This European Standard applies to cross laminated timber treated against biological attack. Cross laminated timber treated with fire retardants is not covered.It also sets out minimum production requirements and procedures for Assessment and Verification of Constancy of Performance.

Committee
CEN/TC 124
DevelopmentNote
Supersedes PREN 16351. (10/2015)
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Superseded
SupersededBy

DIN EN 15497:2014-07 STRUCTURAL FINGER JOINTED SOLID TIMBER - PERFORMANCE REQUIREMENTS AND MINIMUM PRODUCTION REQUIREMENTS
UNI EN 15497 : 2014 STRUCTURAL FINGER JOINTED SOLID TIMBER - PERFORMANCE REQUIREMENTS AND MINIMUM PRODUCTION REQUIREMENTS
17/30316733 DC : 0 BS ISO 16696-1 - TIMBER STRUCTURES - CROSS LAMINATED TIMBER - PART 1: COMPONENT PERFORMANCE AND PRODUCTION REQUIREMENTS
I.S. EN 15497:2014 STRUCTURAL FINGER JOINTED SOLID TIMBER - PERFORMANCE REQUIREMENTS AND MINIMUM PRODUCTION REQUIREMENTS
EN 15497:2014 Structural finger jointed solid timber - Performance requirements and minimum production requirements
UNE-EN 15497:2014 Structural finger jointed solid timber - Performance requirements and minimum production requirements
DIN EN 15497 E : 2014 STRUCTURAL FINGER JOINTED SOLID TIMBER - PERFORMANCE REQUIREMENTS AND MINIMUM PRODUCTION REQUIREMENTS

EN 13183-3:2005 Moisture content of a piece of sawn timber - Part 3: Estimation by capacitance method
EN 13353:2008+A1:2011 Solid wood panels (SWP) - Requirements
EN 13986:2004 Wood-based panels for use in construction - Characteristics, evaluation of conformity and marking
EN 302-5:2013 Adhesives for load-bearing timber structures - Test methods - Part 5: Determination of maximum assembly time under referenced conditions
EN 350-1:1994 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 15416-5:2017 Adhesives for load bearing timber structures other than phenolic and aminoplastic - Test methods - Part 5: Determination of minimum pressing time under referenced conditions
EN 302-2:2017 Adhesives for load-bearing timber structures - Test methods - Part 2: Determination of resistance to delamination
EN 15416-3:2017 Adhesives for load bearing timber structures other than phenolic and aminoplastic - Test methods - Part 3: Creep deformation test at cyclic climate conditions with specimens loaded in bending shear
EN 717-1:2004 Wood-based panels - Determination of formaldehyde release - Part 1: Formaldehyde emission by the chamber method
EN 13501-2:2016 Fire classification of construction products and building elements - Part 2: Classification using data from fire resistance tests, excluding ventilation services
EN 301:2017 Adhesives, phenolic and aminoplastic, for load-bearing timber structures - Classification and performance requirements
EN 302-6:2013 Adhesives for load-bearing timber structures - Test methods - Part 6: Determination of the minimum pressing time under referenced conditions
EN 789:2004 Timber structures - Test methods - Determination of mechanical properties of wood based panels
EN 13556:2003 Round and sawn timber - Nomenclature of timbers used in Europe
EN 302-1:2013 Adhesives for load-bearing timber structures - Test methods - Part 1: Determination of longitudinal tensile shear strength
EN 13238:2010 Reaction to fire tests for building products - Conditioning procedures and general rules for selection of substrates
EN 13823:2010+A1:2014 Reaction to fire tests for building products - Building products excluding floorings exposed to the thermal attack by a single burning item
EN 350-2:1994 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 14081-1:2016 Timber structures - Strength graded structural timber with rectangular cross section - Part 1: General requirements
EN ISO 9001:2015 Quality management systems - Requirements (ISO 9001:2015)
EN 302-4:2013 Adhesives for load-bearing timber structures - Test methods - Part 4: Determination of the effects of wood shrinkage on the shear strength
EN 302-3:2017 Adhesives for load-bearing timber structures - Test methods - Part 3: Determination of the effect of acid damage to wood fibres by temperature and humidity cycling on the transverse tensile strength
EN 408:2010+A1:2012 Timber structures - Structural timber and glued laminated timber - Determination of some physical and mechanical properties
EN 15497:2014 Structural finger jointed solid timber - Performance requirements and minimum production requirements
EN 14374:2004 Timber structures - Structural laminated veneer lumber - Requirements
EN 15425:2017 Adhesives - One component polyurethane (PUR) for load-bearing timber structures - Classification and performance requirements
ISO 9001:2015 Quality management systems — Requirements
EN 338:2016 Structural timber - Strength classes
EN 14358:2016 Timber structures - Calculation and verification of characteristic values
EN 14080:2013 Timber structures - Glued laminated timber and glued solid timber - Requirements
EN 15228:2009 Structural timber - Structural timber preservative treated against biological attack
EN 384:2016 Structural timber - Determination of characteristic values of mechanical properties and density

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