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Discussion Starter #1 (Edited)
Hello,

I need help on how to tile the ceiling of our shower. If the ceiling was going to be flat if would be a no brainer. The current rough ceiling has already been dropped to 97". The finished shower ceiling needs to be 84" from the finished shower floor. The shower dimensions are 60" x 66" However, my design calls for the 84" height to be roughly 40" x 44". This will leave a 12" ish deep channel that I want to put in waterproof LED lights.

Is there any special way this has to be framed to support the weight of the wood, cement board, mortar, shower head and tile?
I wanted initially to put the waterproof LED strips on the horizontal surface at the bottom (top) of the channel. I just think this would be visibly unattractive although you'd have to look up in there. This could be minimized by making channel narrower, but how would I attach cement board? 90° drill? (Excuse to buy new tool, cheesy grin...) Is there any way to place light strips on vertical surface and hide using some sort of lip?

I can't think of any way to tile this lip that won't leave an exposed cement board edge or mortar edge. I also have to look at the amount of lumens from the light strips, may not get enough illumination by trying to reflect the light (vertical installation) vs. direct (horizontal installation). Vision in my mind is wall would "glow" from reflected light. Entire shower is white polished tile, maybe 6 x 6.

This is bound to be the hardest part of my entire house remodel. Custom shower pan and this ceiling. Increase of a single ceiling /wall interface to caulk now have two...

Chris

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Really big mistake to try and frame a ceiling in a show that way.
Moisture is going to be traped in those high areas.
Just make it a flat ceiling.
 

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Discussion Starter #4 (Edited)
Part of the reason is I cannot find any decent waterproof lights. LED lights strips on a flat ceiling will look even worse. Even with 6 mil vapor barrier, and water membrane still an issue? Trapped moisture will lead to; grout failure? Mortar failure?

Without any light this shower will look like a cave. Only opening is a 36" x 80" door soon to get a curb.
 

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Discussion Starter #6
Oops, sorry this shower will have steam generator. Have the flu right now, man I could use it...

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Here is one more thing to do---steam shower ceilings need a sleight pitch--if not the stream will condense on the ceiling and drip cold water drops on the bather--not pleasant.
 

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Good point, it needs to be pitched with the high side toward the main bathroom.
 

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Discussion Starter #9 (Edited)
So if I make the channel as long as it is all pitched towards the bathroom it should work? Back channel pitched in two directions, sides pitched towards bathroom, last channel pitched towards wall? Lowered section has to be level due to the shower head or maybe 1/4 bubble.

Converting an old closet into a steam shower is a lot harder than thought but still achievable!

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Those reccessed area will still always be an issue.
There's always going to be moisture trapped in that area that will cause issues with keeping paint stuck and will be a night mare to try and finish off.
 

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I usually pitch the ceiling to the back wall--the pitch need not be great--the upper portions of that ceiling should also be pitched---cold drips are very irritating.
 

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Discussion Starter #12
I was planning on tiling all surfaces even ceiling
 

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Even with the pitched ceiling and the added detail--you will be able to do that tile and make it look good---high ceiling first--then walls and soffit sides--last--the bottom of the soffit---
 

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Be sure to ass studs and blocking for the air tight doors---they are heavy double studs minimum for the doors---blocking on the flat for the ceiling---
 

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Discussion Starter #15
Found and started reading Laticrete's Steam shower design. How closely should I follow their diagram? Seems really tough and a waste of silicone to run bead 1/2" thick under pan where cement board rests, also how do you create the groove that the flexible foam backer rod is inserted? Seems to me this is "creating" a spot where water would pool? Can I skip both these features?

ForumRunner_20130112_231335.jpg

Most other shower pan instructions don't have all these parts.

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Discussion Starter #17
Thanks Mike!

That is actually the page I lost that I was looking at when I decided to make this closet a shower!

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Those steam showers are very enjoyable----and not all that difficult to do well--with the modern surface membranes available success is much easier than the old days----

Plumbing in the steam generator needs to be considered----they have a condensation drain --so don't forget about that when doing your rough in---Some will have a condensate drain that can be fed back into the shower----

Good idea to have the installation instructions for you unit when planning this out.

Don't forget about electrical requirements----Mike-----
 

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Discussion Starter #19
Thanks!

Just had a sub-panel installed just for this purpose.

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Discussion Starter #20
Does it matter if the cement board stops short of the mud pan (caulk gap) vs. having board go down to shower pan liner (caulk gap) and be inside and part of mud pan? Finding diagrams of both ways.

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