Should I Install Ceramic Tile UNDER the Bathtub ???

i thin layer of plastic is just as waterproof and much cheaper. which isnt to say its gonna be waterproof. tile or plastic, you would need to caulk/seal where the pipes go through. or to put it another way, you arent going to turn your floor into a submarine.

in short, the best way to protect against water damage to the sub floor is to keep the tub from leaking. once its leaked, you got a problem. its gonna go somewhere.

randy

I can't think of any reason to put tile under a tub. What would be the point?

If you are worried about protecting the sub-floor using a membrane material (shower pan liner) would probably be easier.

I have the bathroom 'gutted' and my next step will be adding tile... starting with the floor.

It's not a big bathroom (6x8ft), but I was wondering if I should go ahead and tile WITHIN the nitch/cove that the tub will soon fit into...

I plan on putting sound-deadening insulation inbetween the wall studs and then putting up roofing felt between the backer-board at the wall studs.

Can I use roofing felt (15#) on the floor?... right now, the flooring is plywood. Thanks!

God bless, David

DM-

I'm nearing the end of a similar project, though my old tub (also

Anyway, most whirlpool tubs are supposed to be set in mortar to support the floor of the tub. Check the installation instructions for your tub; you can probably find 'em online. I wound up using expanding foam instead; long story but it worked out great.

I advise against tiling under the tub. As others have mentioned, there should never be water under it, and there are other ways to protect the floor in the event of the odd leak.

Be careful about tub dimensions. When I was shopping around, the smallest I found was a 32 inches. I was able to make this fit. They also had 32.75 inch versions. Measure carefully.

Marc