This part of BS 8605 describes methods of specifying the characteristics of external timber cladding products from which selection has to be made and for which values might have to be agreed between the purchaser and manufacturer.
This part of BS 8605 complements harmonized standards BS EN 14915 and BS EN 13986. It lists all performance requirements that might apply to external timber cladding in the UK and provides a method of specifying those requirements that are outside the scope of those standards,but which are relevant to the UK's climate and construction practices.