scope:

This standard specifies performance requirements for prefabricated structural (load-bearing) wall, floor and roof elements consisting of framing members of wood and/or wood based materials and one or both sided panels or boards connected to the joists by suitable adhesive bonding or mechanical fixing. The cavities of the elements may be filled entirely or partially with insulating materials. The exterior faces of the panels or boards may also be covered with insulation material. This standard applies to elements which require but do not include an external finishing layer when installed, such as brickwork or a roof covering. It does not apply to elements incorporating doors or windows. This standard specifies requirements for the components and materials and gives minimum requirements for the production of such elements that experience has shown will lead to elements fulfilling the requirements. The standard also covers methods to carry out the evaluation of conformity and marking.