I am planning to build a shower room addition with an 8′ x 12′ floor plan. It’s a summer house near a beach. I’m thinking of a concrete slab floor with stick-framed walls. There would be a drain in the floor in one corner of the room with a shower head in the wall above that. The walls would be tiled in the shower area and the shower water would just fall on the floor. There would be no shower pan or curbed off area. At first glance a plumber wondered if it wouldn’t need a pan liner that ran up the walls. Do I need to line the whole room and then pour a second layer of concrete over the structural concrete floor, with the drainage slope in it? I didn’t indicate any of this in my plans and the building department that granted the permit ask for details. — Matt
There are a thousand hacking at the branches of evil to one who is striking at the root. — Henry David Thoreau
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Greetings free,
This post, in response to your question, will bump the thread through the 'recent discussion' listing again.
Perhaps it will catch someones attention that can help you with advice.
Cheers
'Nemo me impune lacesset'
No one will provoke me with impunity
I'd say the plumber is right.
Keep in mind ... concrete isn't water proof ... it's actually pretty water permeable.
So all that water on that concrete is gonna make it fail over time.
Now ... an addition ... to a beach house. How much is too much?
and what's the damage gonna be?
Me ... I'd go the full route.
Preslope ... membrane ... top coat ... tile ... just pick what ever tile is cheapest ... but make for one big a$$ shower ... it'll last forever.
The next cheapest option would be the membrane ... then seal the snot outta the the mudbed ... and expect that sooner or later that layer of mud over the membrane is gonna crumble.
No membrane ... just know that sometime down the road ... might be 5 years and might be 50 ... the framing is gonna fail .. and the dryrot might find it's way into the original structure.
Jeff
Buck Construction
Artistry In Carpentry
Pittsburgh Pa
on Fri I did the mud on top of a 5 ft x 7 ft shower ...
so your little addition ain't gonna be much to do the right way.
Jeff Buck Construction
Artistry In Carpentry
Pittsburgh Pa
Sounds like a perfect situation for Schluters Kerdi or a brush on membrane.
I would be most concerned about the interface of the walls and the floor.
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