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Old 08-15-2016, 11:58 PM   #61
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Re: Starting my first tub-to-shower conversion!


Redgard. 3 coats. 2 buckets. Note to future self: put Durock on smooth side out OR coat the rough side with a layer of thinset beforehand. It took forever to get the Redgard to fill in all those little pinpoint holes in the backerboard.

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Old 12-13-2016, 09:42 AM   #62
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Re: Starting my first tub-to-shower conversion!


Need some advice guys. (Yes, I know it's coming up on a year since I started this project . . . I took the fall off).

Remember that plumber I hired that half-assed the drain? Well, now that the pan has been poured, floor tiles installed, and the booze has worn off, I realize that he also installed the shower valve too low...like mid-thigh level. I thought I could just "live with it" and continued on with the Durock and Redgard. But since I've already taken this long, and everything else has been such a PIA, I may as well to THIS over again too.

My thoughts (being a plumbing layman that has no experience sweating pipes): I can carefully cut the Durock away to make access. Cut the copper pipes and install Sharkbite copper-to-PEX couplers to add about a foot-and-a-half of length to each of the supply lines. Move everything up and secure. I'll have to shorten the line that goes to the head (or do I?). Re-install Durock and Redgard.

easy?? . . . right? :P

Pics to refresh your memory:



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Old 12-15-2016, 07:16 PM   #63
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Re: Starting my first tub-to-shower conversion!


Done! It was much easier than expected. I was concerned about sweating the pipes, but turns out it's stupid-easy. Thanks to Youtube and the guy at Ace hardware.

I cut the panel out in a way that all I have to do is flip it. Saves me from buying another sheet of Durock. Just need to patch it up now. Glued some strips of tile to the inside to give me something to attach to.


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Old 12-16-2016, 05:54 PM   #64
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Re: Starting my first tub-to-shower conversion!


I would do this, not the tile pieces glued on. Smart thinking flipping the cutout. The Plumber must have thought you were putting in another tub.
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Old 12-19-2016, 10:15 AM   #65
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Re: Starting my first tub-to-shower conversion!


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Originally Posted by Jim F View Post
I would do this, not the tile pieces glued on.
Hi Jim,
Good advice on not gluing in tiles. However, I have some issues with that video:
- he's using metal (fine thread) drywall screws instead of the wood (coarse) drywall screws
- he's cutting out the hole in a difficult way - jab saw or preferably multitool is the better way to cut out the hole
- you shouldn't spend so much time trying to recreate the patch size. Cut out the new piece first, hold that over the hole, and draw the outline around it. That gives you a perfect fit with no measuring at all.
- he's using mesh tape. Turns out this is OK for a patch since he's using setting compound, but paper tape or FibaFuse is better.

Some of this doesn't matter because we're patching cement board, not drywall. So just use pieces of wood (I find plywood cracks less than regular pine) and screw it in with backerboard screws!

Good luck,
The New Hope Handyman
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Old 12-19-2016, 04:01 PM   #66
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Re: Starting my first tub-to-shower conversion!


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Originally Posted by NewHopeHandyman View Post
Hi Jim,
Good advice on not gluing in tiles. However, I have some issues with that video:
- he's using metal (fine thread) drywall screws instead of the wood (coarse) drywall screws
- he's cutting out the hole in a difficult way - jab saw or preferably multitool is the better way to cut out the hole
- you shouldn't spend so much time trying to recreate the patch size. Cut out the new piece first, hold that over the hole, and draw the outline around it. That gives you a perfect fit with no measuring at all.
- he's using mesh tape. Turns out this is OK for a patch since he's using setting compound, but paper tape or FibaFuse is better.

Some of this doesn't matter because we're patching cement board, not drywall. So just use pieces of wood (I find plywood cracks less than regular pine) and screw it in with backerboard screws!

Good luck,
The New Hope Handyman
It was the general idea of using 1x2 wood backing pieces I was referring to. I would use Durock screws to attach the backing pieces of course.
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Old 12-19-2016, 06:37 PM   #67
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Re: Starting my first tub-to-shower conversion!


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It was the general idea of using 1x2 wood backing pieces I was referring to.
Yes Jim, much better than homeglued tile!
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Old 12-20-2016, 08:30 AM   #68
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Re: Starting my first tub-to-shower conversion!


The silence from the OP makes me wonder if he hasn't already put it back together as he was planning, with the tile backers.
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Old 12-21-2016, 10:55 PM   #69
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Re: Starting my first tub-to-shower conversion!


Blarg! Yes, I already glued the tile pieces in and taped and filled in the seams. I basically used the same technique as in the video (Thanks Jim F) except I used tile and a crap ton of Loctite Power Grab glue. Stuff seems pretty strong. I was concerned about the (remote) possibility of wood pieces warping and causing problems the tiles later on.

I'm using 12x24 tiles and that section will be overlapped...no one tile would be supported by that cutout.

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Old 12-22-2016, 07:59 AM   #70
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Re: Starting my first tub-to-shower conversion!


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I was concerned about the (remote) possibility of wood pieces warping and causing problems the tiles later on.
Your walls are full of wood (studs, flooring) and of course the whole point of all your effort is to ensure that no moisture gets to them! So it would have been fine. But odds are what you did will work. I suspect the strength in that area of the wall will be more due to the entire assembly of surface interconnecting tile/thinset than the tile backers you put in.
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Old 12-22-2016, 08:01 AM   #71
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Re: Starting my first tub-to-shower conversion!


The thinset and those large tiles should make it strong enough. If it's properly coated with the Red Guard there should be no water intrusion behind the wall to warp wood either.
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Old 12-24-2016, 01:40 AM   #72
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Re: Starting my first tub-to-shower conversion!


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Originally Posted by chakotay View Post
Redgard. 3 coats. 2 buckets. Note to future self: put Durock on smooth side out OR coat the rough side with a layer of thinset beforehand. It took forever to get the Redgard to fill in all those little pinpoint holes in the backerboard.


I would add extra coats of redgard to the horizontal surfaces and corners of that bench. And maybe the windowsill horizontals and corners. But I'm paranoid.

I prefer to use cinder block set and filled on the poured pan. But yours works just fine as long as it's completely waterproofed. When I started reading this old thread from the beginning I said to myself - uh oh, someone is building a swampwater box.

Nice work!!

I would never trust a walk in shower build unless I did it myself or watched it get built step by step. Too many clowns running around. A buddy of mine in Phoenix hired some jack-leg who figured he didn't need a liner since he was on a slab. My buddy didn't know any better until the drywall in his hallway turned black. Another friend in Chicago hired two women contractors (I wanted no part of my friends' job because they are pains in the dupa) to build out their basement. Luckily I stopped by to say hi - the ladies were doing the same thing. When I asked about a liner they said they were planning on using pond liner. Wtf? My friends begged me to build the pan so I begrudgingly agreed. When I started pulling the backerboard down I realized they mudded the seams with drywall compound. Doh!!
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Old 12-24-2016, 08:26 AM   #73
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Re: Starting my first tub-to-shower conversion!


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I would never trust a walk in shower build unless I did it myself or watched it get built step by step. Too many clowns running around.
Agreed. Oy.
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Old 01-23-2017, 01:43 PM   #74
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Re: Starting my first tub-to-shower conversion!


Thanks Erico. No worries on the bench and windows . . . at least I hope not. You can't see it, but there's 2-1/2 gallons of Redgard in this shower. I was having trouble filling in all those little voids in the Durock. So in the end, I was literally scooping Redgard out of the bucket with my gloved hands and smearing it on those surfaces like a kid making mudpies. It's piled on pretty thick.

I'm almost done with tiling! Been waiting 'til I'm through with that to post picts. (or should I wait until I've grouted? dunno)---j
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Old 01-23-2017, 01:47 PM   #75
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Re: Starting my first tub-to-shower conversion!


btw. We're looking at shower heads and valves. I presume whatever set we get will come with the arm coming out of the wall. I've tried unscrewing the pipe that the plumber put in there, but it's glued in with some white stuff. Any suggestions to getting this thing off without resorting to a torque wrench?

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