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Unread 12-05-2012, 02:40 PM   #1
nurseblayne
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Bathroom remodel rookie questions

I am re-doing most of an upstairs bathroom in my home, built in 1988. I am leaving the tub since it is in good condition, but almost everything else will go. I removed the tile around the shower, when I did I found green board over sheetrock on all three walls. Surprisingly, very little mold. I have now removed both and installed DensShield. (I did read the DensShield debate thread and I feel comfortable using it, given my strength and tool constraints.) I plan to silicon the joints and screws, tape with thinset, and then use RedGuard. Does anyone have any tips or see any potential pitfalls with this plan?

After tiling the shower, I plan to replace the carpet with 3x6 marble tile. I had planned to install Ditra over the existing subfloor, which I was told should be sufficient (by a contractor I was considering using before I decided to do it myself). On further reading I'm concerned that it may not be. How do I determine this without ripping up the subfloor (or is that possible) since I do not know what the joists look like?
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Unread 12-05-2012, 03:47 PM   #2
atolsen85
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You could remove some of the ceiling below the shower and check out the joists.

Drywall repair isn't too difficult.

Be sure to buy the powder thinset that comes in a bag and requires being mixed with water. Avoid any premixed crap in a bucket.
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Unread 12-05-2012, 05:58 PM   #3
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The joist structure must be known before tiling at all either ceramic or natural stone. Cutting a hole which can be patched later will work.

You'll need to know your joist height, width, un-supported span, and spacing. Use the handy dandy deflecto meter linked in the dark blue bar above.

Natural stone also need 2 layers of plywood laid in a certain fashion. Those layers usually total 1 ΒΌ" Then comes the CBU or membrane. Have room for that?
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Unread 12-07-2012, 08:41 PM   #4
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Paul,
Well, probably not. I guess I could trim some off the door? Would I just need one layer of 3/4" for ceramic? And what about the toilet - how do you raise it up to match that?
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Unread 01-08-2013, 01:02 PM   #5
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So I tiled the shower walls and I am pretty pleased with how it came out overall but I'm having trouble uploading my picture. Shower still needs to be grouted but... my husband did the bottom row for me and the gap is way too big and I'm going to need to replace those tiles. Is there any good way to get them off?

Also wanted to ask... the deflecto gave me the thumbs up for ceramic so I'm abandoning the marble. The subfloor has an area of mold and I was wondering how I can determine whether the water damage is bad enough to make that area of subfloor unsound?
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Unread 01-08-2013, 06:38 PM   #6
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Hi Blayne, if you can poke a screw driver into the area easily the I would cut out the bad area and replace it.
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Unread 01-16-2013, 03:44 PM   #7
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Grout

I know that pre-mixed mortar is not acceptable to use, but what about pre-mixed grout? I found some that have sealant already mixed in - is this too good to be true? Seems like it would be great to skip a step there, I'm not doing a large area so I don't mind paying a little more for convenience.
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Unread 01-16-2013, 03:58 PM   #8
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Not sure which brand of premixed grout your considering, but I've seen some that indicate that it's acceptable to use on shower and tub walls but not for use on shower floors...or in other words areas that get sorta wet but not really wet. If it were me I'd save the premixed grout for use on kitchen backsplashes and use a non-premixed grout in a tub/shower area.

Just my humble DIY'er opinion though.
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Unread 01-16-2013, 05:19 PM   #9
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I'm not home right now and I don't recall the brand but I'll look later. FWIW, I will be grouting a shower surround (not floor) and bathroom floor, two different colors. Would anyone care to recommend a grout brand? Nearby I have the big box stores as well as one called Floor & Decor outlet (I think its a chain), but I'm in the Dallas area so can probably find nearly anything. I wasn't really thrilled with the available selection of unmodified thinset to go over my ditra but I didn't know where else to look, so maybe if I have a brand to look for I can locate a better supplier that way.

This is what I have:
http://www.tecinvision.com/product_grout.cfm
it just states not for outdoor use or with polished marble or travertine.
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Unread 01-17-2013, 07:36 AM   #10
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Anything premixed is likely not for showers....even the walls. Products with portland cement cure, even if left wet. Pre mixed products don't cure, they dry. Most are water soluable too. Even though it's called premixed grout, it's likely just a glue. Stay away from them.
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Unread 01-17-2013, 08:42 PM   #11
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Hi Blayne, I'd use Customs brand from Home Depot. For those small joints, you'll want unsanded grout. It comes in 10 lb boxes .
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Unread 01-18-2013, 05:23 PM   #12
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Awesome thanks - that is exactly what I had picked up!
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