Shower Pan Not Drying - No Preslope?
Goofus
13 years ago
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13 years agolast modified: 9 years agojohnfrwhipple
13 years agolast modified: 9 years agoRelated Discussions
Shower pan to wall transition (How?)
Comments (4)dave, a couple of things: "There is a former Kerdi seller who now carrys ProVa-Mat who whines on every forum about how they took his bread and butter, but he made one good point- Kerdi doesn't want you to use modified thinset because it isn't faced to accept it well. " Kerdi doesn't want you to use modified not because "it isn't faced to accept it", they don't recommend using modified because the latex modifiers need exposure to free air to dry. The portland cement portion of the thinset cures via a chemical reaction...no drying or exposure to air is needed. But the latex modifiers found in modified thinset need exposure to free air to dry. When thinset is sandwiched between a sheet of Kerdi and a porcelain tile, the only air exposure is through the grout lines. Small tiles that would result in a lot of closely spaced grout lines, you might be okay. Large format tiles with few grout lines and little exposure to air, not so good. If you were to just smear modified thinset on Kerdi and let it cure, you'd find it will adhere quite well. The Kerdi thread you like with no photos and the Kerdi thread you dislike with photos are essentially the same thread showing the exact same steps. You wrote: "I also found this kerdi thread that has pictures...but he doesn't go up the walls from the floor with the membrane, instead he seals thinsets at the floor/wall transition- not recommended. " The method in that thread is correct. With Kerdi, any membrane overlap or at least 2" is correct and watertight. Remember you can have a 2" seam on the floor slope itself...there is also an overlap seam where every Kerdi floor membrane seals to every Kerdi Drain. Any Kerdi seam is fine as long as it's at least 2" of overlap. Kerdi doesn't have to be "lapped for drainage" like other membranes. "I am putting my mortar bed on a concrete slab. Do I need anything between concrete/mortar to prevent the slab from sucking the moisture out of the mortar before it cures properly? " You still want a slip sheet between the concrete slab and the slope. A sheet of 6-mil poly or tar paper will work fine. I've never used ProVa-Mat. Whichever membrane you use, just follow the manufacturer's installation instructions. I understand you're using cultured marble on the walls. Are you using it on the sloped shower floor too? Or will the sloped floor be tiled? If the floor slope will be covered with CM, how are you planning on sealing the seams between the sheets of CM?...See MoreLaticrete Hydro-Ban Presloped Shower Pan
Comments (3)It makes me feel a lot better knowing someone like you thinks the system is excellent Let me put it this way-- with one exception, every shower I've installed in the last two years has been installed with the Hydroban system. The biggest plus is that if I use the proper Laticrete materials, I can offer my customers a 25 year MANUFACTURER BACKED warranty. What that means is that even though I'm (about to turn) 55, if that shower fails 20 years from now, Laticrete will back the shower system, even if they have to get someone else in there to fix it. That's how good this system is. One other thing to remember-- I've been using their products literally for decades. In that time, I've had occasion to need them to stand behind thir products. No questions asked, once it was determined that it was the product. Labor to demo, labor and materials (inclluding tile) to re-install-- all covered. That's why I stand behind these people. ALL companies have problems from time to time. No one's perfect. But I've never, from any other company, had the kind of customer service I get from them. I have no doubt they'd really stand behind this if it were needed....See Moreshower pan won't dry out
Comments (3)If its in the tiled pan itself Likely you are missing the preslope underneath your mud bed or the pre slope is imperfect and creates pools of water that sit and pool up after each use, weep holes could be blocked etc. need more info/pics to determine. If you have a plumbing leak you likely would know about it sooner rather than later. Post some pics over in the bathroom threads and you will get a lot of help.....See MoreConflict with GC re: proper install of Oatey shower pan liner
Comments (22)"and im guessing you do not buid tile showers youself and have to navigate inspections" -- Guessing is what got you back-peddling in the first place, (and changing/ deleting your posts after I show you that you are wrong). You would be hard pressed to find something that I have not personally gotten a permit for, and passed the inspections. "as such It makes sense I confused you again." -- You are not confusing me. At best, you are confusing the issue at hand and the OP's original question of slope. I would be more concerned with this statement; And, how they had planned on getting the Oatey liner even 2" above the threshold, and behind the Durock without taking it all off. BTW, how much of the bottom edge of the Durock do you usually leave flapping in the wind without screws in order to not screw through that extra 6" of liner? The Durock also has to be screwed per MFG instructions. When trying to one-up the code, make sure you are not shooting yourself in the other foot....See Moredavidro1
13 years agolast modified: 9 years agoGoofus
13 years agolast modified: 9 years agojohnfrwhipple
13 years agolast modified: 9 years agodavidro1
13 years agolast modified: 9 years agoGoofus
13 years agolast modified: 9 years agoterezosa / terriks
13 years agolast modified: 9 years agoMongoCT
13 years agolast modified: 9 years agodavidro1
13 years agolast modified: 9 years agoMongoCT
13 years agolast modified: 9 years agojohnfrwhipple
13 years agolast modified: 9 years agoUser
13 years agolast modified: 9 years agoMongoCT
13 years agolast modified: 9 years agoUser
13 years agolast modified: 9 years agoGoofus
13 years agolast modified: 9 years agoUser
13 years agolast modified: 9 years agoUser
13 years agolast modified: 9 years agoGoofus
13 years agolast modified: 9 years agogneco
13 years agolast modified: 9 years agoUser
13 years agolast modified: 9 years agoGoofus
13 years agolast modified: 9 years agoStacey Collins
13 years agolast modified: 9 years agojohnfrwhipple
13 years agolast modified: 9 years agoUser
13 years agolast modified: 9 years agogneco
13 years agolast modified: 9 years agoStacey Collins
13 years agolast modified: 9 years agojohnfrwhipple
13 years agolast modified: 9 years agoUser
13 years agolast modified: 9 years agojohnfrwhipple
13 years agolast modified: 9 years agoUser
13 years agolast modified: 9 years agobill_vincent
13 years agolast modified: 9 years agoUser
13 years agolast modified: 9 years agogneco
13 years agolast modified: 9 years agobill_vincent
13 years agolast modified: 9 years agojohnfrwhipple
13 years agolast modified: 9 years agoUser
13 years agolast modified: 9 years agojohnfrwhipple
13 years agolast modified: 9 years agoUser
13 years agolast modified: 9 years agojohnfrwhipple
13 years agolast modified: 9 years agobill_vincent
13 years agolast modified: 9 years agojohnfrwhipple
13 years agolast modified: 9 years agoUser
12 years agolast modified: 9 years agojohnfrwhipple
12 years agolast modified: 9 years agoUser
12 years agolast modified: 9 years agoStacey Collins
12 years agolast modified: 9 years agobill_vincent
12 years agolast modified: 9 years agodavidro1
12 years agolast modified: 9 years agojohnfrwhipple
12 years agolast modified: 9 years agoUser
12 years agolast modified: 9 years ago
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