Firstly
because it is compulsory for the products that are incorporated in the
construction of a building. Secondly because the CE marking, carried out within
the existing legal framework along with the implementation of the Eurocode are
the only quality assurance (of the State not the supplier). It is also the only
way of checking that incorporated products in walls have the same benefits
stated in calculations. There is no point calculating if there is no comparison
value for gauging.