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Unread 01-18-2022, 11:00 PM   #183
arnav
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Join Date: Aug 2014
Location: FL
Posts: 506
Quote:
Originally Posted by CX
If you have decided that ain't none of that any of my bidness, I'll surely understand.
Never. Until you are happy, I am not happy.

Quote:
Originally Posted by CX
The plywood that is directly under your shower, the layer on top of the 2x3 joists, or sleepers, or whatever we wanna call them, is your shower subfloor. Why? Because it is the subflooring upon which you plan to build your shower. Whatever you want to call the framing below the level of the 2x3s is a matter for another discussion. Please.
Ok, understood.

Quote:
Originally Posted by CX
You are going to construct a shower on the area that we see in your photos that has a drain line angling across it among the 2x3 joists. You have subflooring on those joists that is separated such that it does not cover the narrow area containing the drain line, but covers the joist areas on either side.
Correct.

Quote:
Originally Posted by CX
My question was why you had done that, rather than cover the entire 2x3 joist area with the subflooring? I'm not seeing the logic there.
Covering the entire flooring would have required raising the flooring above the pipe. With that extra height the shower area wouldn't fit within the height of the 2 x 6 platform (with a traditional pan liner construction). Please see the math in the previous post.

Quote:
Originally Posted by CX
Second thing I do not understand is the construction of a traditional shower receptor rather than a direct bonded waterproofing type receptor.
Quote:
Originally Posted by CX
With a direct bonded waterproofing membrane-type receptor, it would be a simple matter to continue the waterproofing out onto the rest of the floor. And would have provided more room for joists under the shower, which I do understand you don't really need for structure, but would have been easier than ripping 2x3 joists to accommodate two mud beds.
100% agree a bonded waterproofing would be better. I fully recognize why. I really do. It makes perfect sense. But, I am much more comfortable with a traditional liner as this is what I have successfully used previously: https://www.johnbridge.com/vbulletin...113801&page=19

Quote:
Originally Posted by CX
Perhaps I've not been following the thread closely enough, but with a wood framed subfloor outside the shower, I'm not seeing how you plan to waterproof the area outside the shower, which will get wet.
This is really key for me to understand. Why would it get wet? The shower glass is inside the wet area and within the slope. Any water that drips from the glass drips into the pan. That is, the pan extends beyond the glass. The shower door / curb is to the south, not to the 2 x 6 area in the west. Here is a drawing Davy was kind to draw somewhere in this thread: https://www.johnbridge.com/vbulletin...1&postcount=68 Also, a finished example / project that Davy provided for inspiration also in this thread: https://www.johnbridge.com/vbulletin...5&postcount=52

1. So to ask differently, say I had unlimited man-power to schlep cement and sand up to the third floor. Filling the entire shower area's depth with 5" of mud would have been ok right? i.e. no 3rd structure, no 2x3 joists, just mud from subfloor until the height of the drain.
2. If so, does it really have to be the entire area of the shower? What if you extend the "trench" by the pipe by 1 foot on each side for example? then the gap in the middle is 2' of concrete. I am just trying to avoid having to set ~11 cubic feet of mud.
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Much like this project, my posts are still under construction
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