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Bath & Faucets

Portion of shower wall down, how do I waterproof?

My home was re-piped and a portion of the shower wall had to be demolished for access. So far both contractors i've had in for bids state that the rest of the wall need to come down in order for them to re-tile the wall. I don't believe that should be the case but I'm not sure how to do it myself. How can I be sure this section is waterproofed properly if I use backerboard and re-tile on my own?
My main concern is the seals in the corner and down near the tub. 
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Posted 2015-09-10T16:54:40+0000  by SeattleP SeattleP
 
Here's a picture of the current situation
Posted 2015-09-10T16:55:37+0000  by SeattleP
The two common ways to waterproof a tub/shower are either to use drywall and a waterproof membrane like Shulter's Kerdi or Laticrete's Hydroban or cement backerboard with a 6 mil layer of plastic sheeting behind it.

It looks like the original wall was drywall but I can't tell if there is any kind of membrane over it.  You'll want to make sure that you replace the insulation too.  You may need to add some blocking to nail the new drywall.
Posted 2015-09-12T11:05:36+0000  by Adam444
Hey SeattleP,

While the wall is open, why not add body sprays to update your shower.

It's like a car wash for your body ... very refreshing!

They insert flush to the tile and attach to your existing 1/2-inch supply line.

Click here for three examples.
Posted 2015-09-29T19:16:31+0000  by Pat_HD_ATL
 
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