groundfloor wetroom - why tank it?

[beetlezeb]

Hi!

We're doing a full loft conversion with new bathroom and therefore turning our current groundfloor bathroom into a wetroom.
It's on a woodenfloor, so we don't need to raise the shower area to accomodate the pipework. So, do we actually need to tank it?

My parents also live in a bungalow and they've had a fully tiled showeroom for about 20 years, it was not tanked and they've never had a problem with leaks.

So is tanking just for 1st floor wetrooms as a safety thing?
Seems like a big expense if it's not nessacery.

Any advice would be great! Thanks in advance

Sam.

[chris_on_tour2002]

an undetected leak on the ground floor could cause untold amounts of damage. personally i would never consider installing a wetroom without tanking on a wooden floor.

[bobplum]

if you buy the preformed dec from **** they supply the tanking system in a membrane form works very well
bob