Shower Surround Project Plan, Is It Sound - Kitchen & Bath Remodeling - DIY Chatroom Home Improvement Forum

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Old 04-24-2017, 05:21 PM   #1
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Shower Surround Project Plan, Is It Sound

OK, ripped out tile surround around shower/bathtub, tiles were peeling from the CBU (house was built 1987). Construction was CBU 1.5' up from tub, sheet rock remainder, no seam tape, tile was attached by thinset, spread with trowel only on the wall (no back buttering on tile), no moisture barrier. Tiled up to 5' or so from tub. I'm pretty sure this was done by the builder, it's 80's. Luckily, 30 years later, no real moisture damage, a few rusty screws, some minor CBU discoloration, studs have no damage. So now it's just 2x6 studs on all walls, insulation on outer wall. Sheetrock remains on top and sides, really just want to replace the tile and not do the whole bathroom.

My installation plan (all materials would be white):

1. Add wood to ensure all CBU/sheetrock joints can be attached on sides. Shim studs 3/16" with drywall furring or roofing felt strips to accommodate for 1/2" Hardiebacker being actually 3/16" less than 1/2" sheetrock. Try to get Hardiebacker as flush as possible with existing sheetrock. Plumbing functional test.

2. Mount Hardiebacker with roofing nails or CBU specialized screws, checking leveling as I go.

3. Use a modified thinset to fill in gaps between CBU panels and between CBU/Sheetrock, tape seams (CBU tape), thinset over seams and level as needed with more thinset, hopefully this is just one attempt.

4. Let dry 5 days, allow extra time for modified thinset

5. Apply Redguard, let dry between coats and final coat, check thickness.

6. Tile, use same modified thinset with subway tiles, 1/16" spacers, let dry

7. Apply unsanded grout, clean up, let dry, clean excess/polish.

8. Caulk tub to tile, let dry

9. Seal tile

Question 1: Plan sound OK?

Question 2: Planning to use Versabond, but it seems to have a horrible reputation by contractors, thoughts?

Last edited by CrazyHorse123; 04-24-2017 at 05:28 PM.
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