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PSWired

join:2006-03-26
Annapolis, MD
reply to PSWired

Re: Steam room progress

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Finally making some more progress on this. The Kerdi is all in, except for the floor. Waiting on some more membrane to come in before I can finish that.

Once the floor is done, it's time for tile! Other than connecting the kerdi-drain to the trap in the crawlspace, everything else is functional.

Overall I've been happy with the Kerdi installation process. It's not pleasant by any means, especially the ceiling, but it does seem like a solid system, and I don't expect any problems, especially with cement backer board.

The one problem area I'm anticipating is the wooden doorframe. It'll probably rot out eventually, at which point I'll need to consider something more moisture resistant.


PSWired

join:2006-03-26
Annapolis, MD

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Also I tore out the wooden door curb and poured a new one with the correct slope. The wooden curb would've held water condensing on the door.


sempergoofy
Premium
join:2001-07-06
Smyrna, GA
Reviews:
·AT&T Southeast
reply to PSWired

Very nice progress. I notice in one picture that you appear to have put concrete backer board on the ceiling. That's great if it is working for you. It was recommended to me on a tiling forum board years ago to not use it on the ceiling due to the weight. The pros on the board recommended to me (and I followed the advice) to use Wedi board on the ceiling and adhere my tiles to it using a strong adhesive (I used Omnibond) instead of mortar (I was using 4x4 ceramic tiles in a bathtub surround.) I was able to acquire the Wedi board locally where the tiling pros get their material, but the link I provided above will let you see what Wedi board is.
--
nohup rm -fr /&



PSWired

join:2006-03-26
Annapolis, MD

That Wedi board does look like a better idea. I needed help getting the durock up on the ceiling.

That said, I was careful to use lots of fasteners on the ceiling board. They're the special rock-on coated screws with the wide heads to distribute the force over a bigger surface area. Gut feel is it's not going anywhere.

I think I'm stuck using thinset on the ceiling as that's what Schluter requires for the Kerdi membrane.



sempergoofy
Premium
join:2001-07-06
Smyrna, GA
Reviews:
·AT&T Southeast

Understandable. The Wedi board in my project required some quite wide special washer fittings to distribute the load that the tile added.

I'm thinking you might have to find a way to put pressure on your tiles on the ceiling until the thinset hardens so that gravity does not pull the tile away. Must be a way to solve that if it is, in fact, an issue. It may just stick and work.
--
nohup rm -fr /&


robbin
Premium,MVM
join:2000-09-21
Leander, TX
kudos:1

I've tiled many of ceiling using thinset. Have to be more careful with the mix, but when you get it right it works fine. Make sure to tile the ceiling first. The ceiling should have had the cement board applied first also. Too bad it wasn't.



PSWired

join:2006-03-26
Annapolis, MD

To get support from the wallboard along the edges?



PSWired

join:2006-03-26
Annapolis, MD
reply to sempergoofy

said by sempergoofy:

I'm thinking you might have to find a way to put pressure on your tiles on the ceiling until the thinset hardens so that gravity does not pull the tile away. Must be a way to solve that if it is, in fact, an issue. It may just stick and work.

Supposedly it'll just stick. I believe it, given the stickyiess of the thinset I'm using. Still, I've got visions of 18" tiles falling onto my head during installation.

One internet guy says to backbutter the tiles and use the zigzag side of the trowel to make circular marks on the tile like a bullseye. Supposedly that makes the thinset act like a suction cup and hold the tile up better while the mortar cures.

robbin
Premium,MVM
join:2000-09-21
Leander, TX
kudos:1
reply to PSWired

said by PSWired:

To get support from the wallboard along the edges?

Yes


PSWired

join:2006-03-26
Annapolis, MD

Whoops.



sempergoofy
Premium
join:2001-07-06
Smyrna, GA
Reviews:
·AT&T Southeast
reply to PSWired

said by PSWired:

Supposedly it'll just stick. I believe it, given the stickyiess of the thinset I'm using. Still, I've got visions of 18" tiles falling onto my head during installation.

One internet guy says to backbutter the tiles and use the zigzag side of the trowel to make circular marks on the tile like a bullseye. Supposedly that makes the thinset act like a suction cup and hold the tile up better while the mortar cures.

That's interesting on the bullseye concept. In the worse case scenario where you find they really do need pressure, sandwiching plywood over an area and supporting it with tees (or a drywall lift if you rented one) until it dries is my only idea. I really hope it just sticks for you. I've never tiled with anything bigger than 4x4, so 18 inches sounds pretty heavy.
--
nohup rm -fr /&


PSWired

join:2006-03-26
Annapolis, MD

1 recommendation

Time will tell, but I don't think the tile size should really matter since it's all corrected based on surface area. Same pressure for a given tile type.