Translation of "impervious surface " (English → French) :

(c) they have surfaces of smooth and impervious material allowing effective cleaning and decontamination;

Ceilings and walls should be damage-resistant with a smooth, impervious and easily washable surface.

Floors should be smooth, impervious and have a non-slippery, easily washable surface, which can carry the weight of racks and other heavy equipment without being damaged.

More extreme storm events will couple with the increase in impervious surfaces just mentioned to cause real water quality problems from the runoff.

8. Points out that water is a transnational issue and that we must cooperate on identifying clearly the factors – and their extent - which are regularly put forward as causes of the exceptional floods, including environmental factors (inefficient maintenance of river systems, new agricultural practices, deforestation, etc.) and aspects of urbanisation (expansion of built-up areas, water runoff, increase in impervious surfaces (roads), etc.), with a view to establishing responsibility, assessing the cost and preventing the repeated floods from which the authorities at present seem unable to learn any lessons;

This will require the use of impervious, non-absorbent, washable and non-toxic materials and require a smooth surface up to a height appropriate for the operations unless food business operators can satisfy the competent authority that other materials used are appropriate;