Timber structures - Cross laminated timber - Requirements
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.