85 Capri wrote:
We took down the tile and found that the drywall had mold. I was told this
was the original tile from 1972. Took out the old drywall and tile and put
new greenboard up and tiled her up again. My guess is this should last over
20yrs or so. So why would I spend $2000.00 - $3000.00 on cement board and
Ditra system when this will last well over 10yrs and would be easy to
replace. Using Greenboard and tiling cost me $350.00 installed.

Assuming you're not a troll - with the amount of partial and
disinformation in your post it's not clear one way or the other - I'll
humor you with a few observations.

Cement backer board costs about three times as much as greenboard, so
for a typical tub surround area the backer board would have cost
roughly $80 more. Ditra is most commonly used on floors, not walls.
Kerdi is used on walls. Either one would have cost a couple or three
hundred bucks for your installation. Why are you multiplying by ten in
your guesstimate?

Tiling on greenboard is for hacks. It's done all of the time. By
hacks. If you wanted ease of installation, a waterproof barrier and
added insulation on the walls, you could have used Wedi board which is
a bit more than cement backer board but has the added benefits listed
above.

There's no reason why you should spend money you don't want to. It's
your house. I'm guessing from the $350 installed price you mentioned
you did the work yourself and didn't include the value of your labor.
If you hired someone to install it for that price, you hired a hack.

If you really wanted to save money you could have gone with a $100
vinyl tub surround. Viewed from that angle you wasted money.

Justifying your decisions by puffing up the numbers to support your
choice is an art form best left to politicians.

R