Tanking requirements

[Steve 1963]

Recently had a walk in level access shower fitted by a council contractor using a disability grant for funding. They have not tanked the walls in the shower area at all and have tiled the walls. They are stating that it is not mandatory to tank and only a recommendation that it should be done.

Is this acceptable and if not what recourse should I pursue

Thanks in advance for any help

[Lofty718]

Tanking is a british standard for all wet areas but I do not beleive it is mandatory. Bathrooms were not tanked at all for years and many with normal plasterboard are  still working well today.

 

My friend works for a council doing plumbing work, they definitely wouldn't get him to tank the walls either everything is done the cheapest way possible.