Over deze norm
Describes the principles and procedures that apply to design, when planning the service life of components and assemblies, and the buildings of which they form a part. It is important that the design stage includes systematic consideration of the local conditions to ensure, with a high degree of probability, that the service life will be no less than the design life. Is applicable to the installation of components in both new construction and the refurbishment of existing structures. However, additional considerations may apply where existing defects in the building require rectification.