Let's try it. What I learned is that the board does wick water and gets weaker when wet.
If I wanted the flexible sealant in the joint, though, I think I'd still grout the bottom joints and just use the sealant where the visible joints would be. My opinion; worth price charged. Usually when I install a piece of marble like that for a seat or even a thin piece for a shelf for shampoo, it's tiled in completely and can't come out even without grout. Like CX said, if the stone is strong enough to hold the weight, I can't see it going anywhere.
I'm not worried about the stone. The stone's not gonna break. I was just thinking about what keeps it from pulling away from the wall if a lb. Will buttering the edges do much, especially with Kerdi? Never trusted grout to not crack at intersections. But this will be small grout joints, non-sanded. Thought maybe the plastic shims in direct contact with tile above and below might really give that bench seat no where to go. Thanks for the replies. Stone would be stiffer naturally.
The bond strength of KerdiFix is in the area of psi once cured. The Kerdi will pull off the wall before the KerdiFix bond breaks, but even that at at least 50psi spread over the length of the two sides is one hell of a lot of shear strength. THen, add tile underneath and above locking it in place I think you'll be fine. Thinset would probably work, too, but the KerdiFix is also waterproof and slightly flexible once cured, which may be advantageous with the variations in expansion of the various components.
I don't think it's a problem, John. Once you tile against the stone seat, it can't slide out, it's locked in place, unless the grout joints are huge. Great answer, Jim. I know that KerdiFix has a tenacious bond. And no, this is not covered in my manuals. It is, but to a small degree, not detailed. In the old construction, there was copper under the tiles — I have not seen myself how it was constructed. How would this be constructed to ensure the soaking tub is fully waterproof?
Thanks so much for your informative posts! Aloha, Mary. Your best bet would be a topical waterproofing membrane. The decks and curbs would need to be formed up correctly to support the amount of water, but waterproofing-wise a topical membrane is likely the only real solution. Copper pans used to be used in lieu of the rubber membranes you now see. They are simply a layer of copper — and they are a bitch to remove. I am building a custom shower for my husband who has medical issues. When I put the Hardie board on the solid bench top that I have built beside the pre manufactured shower pan, do I set that piece of Hardie board in thinset?
And you recommend a liquid waterproofing agent? Because I did not put a membrane over my wood bench frame. The only place you need thinset beneath hardi is on a floor. And yes, you need a liquid membrane over the hardi on the bench.
Make sure to take it up the wall a few inches as well as all the way down over the waterproofing on the floor to fully encapsulate the bench. I was going to line the wood bench with pvc membrane but then i got confused. I normally build my benches using a topical membrane over a substrate on the bench without the membrane behind it. If you do choose to do the floor membrane over it then the lath over that with mud on it is the way to go. Or do I need to Lath and mud the front as well?
If you use the lath and mud on the top you need to use it on the face as well because it will puncture the membrane. We have a shower roughed in that we are finishing, and the bench is pre-built out of wood. Shower floor is still flat, so working on the pre-slope first, then waterproofing. We will make sure bench top is sloped. We ordered a liner long enough to go up and over the bench, but can we not do that? The post on benches is confusing.
You recommend a membrane I assume a goo, not a plastic sheet on the bench, but then that means we have to use membrane for ALL the waterproofing, yes? And running the liner up the bench makes for crazy probably impossible folds in the corner…?
The bench is the whole width of the shower, curb to wall along the short side. Appreciate your advice. From Heather, the Wife writing for Brian as we embark on the project! It is best to use a topical waterproofing membrane over the bench. Treat the front of your bench as the wall, running the floor membrane up behind the substrate. Then paint the membrane over the bench and down to the bottom of the wall substrate. Gravity makes it work. This causes your floor membrane to be in front of your wall membrane, not allowing water from the wall membrane to run INTO the floor membrane.
After that I will cover the floor and bench with oatey liner like I will do with the curb. I will follow your instructions using lath on the liner of the curb and use the stucco, then the thinset and the tile. Can I operate the same way with the bench? I thought of snugling the lath over the liner, adding the stuco, thinset and tiles. Is it a good idea? What a great site with wonderful knowledge.
We currently have a tub and want to remove it and put in a shower with a seat and a small half wall on a portion near the toilet and a small curb on the rest. The house is in Florida so it is on a slab, and we will want to use the existing drain location of the tub for our shower.
Our idea is to frame up the half wall and the curb and the bench and then cover that and the walls with cement board and pour concrete with a slope toward the drain and use pvc pan liner and a roll on membrane over walls , bench, curb and half wall, is there anything we should be thinking about when we do this? Several things, actually. First off, you do not create a shower floor with concrete, you need deck mud.
A shower floor with a liner requires two layers of deck mud with the liner between them. The liner runs up the wall, then the wall substrate is installed over it, then you can use your liquid on the walls. Your plan will work fine, you just need to make sure you nail down specifics before beginning. We are building a custom shower bench out of Schluter board. So, now, we either have to install the custom bench on top of the foam shower tray, or we have to cut away the shower tray where the bench will be placed.
Which would be the best way to fix this screw up? I would cut away the shower tray where the bench goes, build the bench, then waterproof the entire thing. Hi there. Thanks for your article it has excellent tips. I am installing a new shower in my bathroom and while i knows there are different methods for a shower pan my contractor advised that it would be much less extensive to use a pre-fab pan rather than concrete.
I have a corner tub that the shower will run into i have a photo of the kind of thing i want to end up with attached. Build the bench, then get a pan that fills the extra space. Install continuous waterproofing over all of it. Pre-fab pans are never less expensive than deck mud. When installing a granite benchtop to the hardi board, what is recommended as the bonding material? Would you use silicon or other bonding adhesive?
What if you need to remove the benchtop at a later date does that factor into the bonding material I should choose? I would not install it with silicone, it leaves too many open areas beneath your granite. To follow up on this same issue. Can you provide additional insight on what you mean by open areas under the granite? This allow water to build up under the granite.
Above and beyond that — silicone is NOT an adhesive. You recommend using silicone in the corners of your shower walls when installing backer board instead of packing thinset and imbedded mesh tape? This is to allow them to act individually the silicone acts as a flexible seal between the two boards?
So does this fact effect the integrity of the walls at the corners. And do you first silicone then embed mesh with thinset over the silicone. It sucks if it breaks down and looses it bond if there is a traditional lath paper or plastic water proofing behind it does not really matter I guess.
It may be a issue for a topical membrane Applied to backer board. No, it does not affect the integrity of the walls at the corners — provided you also thinset and tape over the silicone. Think about it like this: if the boards are butted against one another in the corner or the gap is filled with thinset — same effect and warmer climate causes the board to expand a bit, there is nowhere for that expansion to go — it will build up pressure.
Eventually this pressure will release somewhere — tile is the weakest link. It just allows movement without causing undue stress. Great site! Now for my question: I am using a Schluter shower pan with the Schluter membrane.
I want to build a bench. The walls have been drywalled in the shower space. I have not yet installed the membrane on the walls for water proofing. I am going to slide the Schluter pan in so that it butts up against the bench. Questions: 1. Do I put up the membrane on the walls before framing in the bench? If the answer to 1 is yes, then do I screw the supports for the bench thru the membrane into a wall stud or do I use thinset to secure the bench to the membrane?
No, build the bench, then cover the walls and it at the same time. Have a great evening…. I am building a new house and decided to do the master shower and bench on my own. I am not finished but am in rough in stage of the house. So, I built the frame for the tub and the shower bench is an extension of the tub deck. I used plywood, then oatey shower membrane that connects into the pan but I extended it up onto the bench.
Then I put backer board over top of that, but I did screw the backer board to the seat of the bench and to the wall of the bench. I then used fiber tape and thinset to fill in all of the seams and screw holes. I then used Mapei Aqua Defense over the entire shower and bench.
Do you think the screw holes in the bench will give me issues? Next step was to thinset and tile over the Aqua Defense membrane. I put two coats of Aqua Defense. Should I put more Aqua Defense coats over the bench and entire wall to help or should I put a thin coat of deck mud over the tub deck and the shower bench?
Thanks so much. Thanks very much. Last night, my wife and I actually added a 3rd coat of Aqua Defense to the entire shower and a 4th coat to the bench, curb, and corners. Thanks for your reply. Do I need plywood under the backer board for my bench? Or will the backer board plus deck mud on top be enough support? If you are putting deck mud on top you do not need plywood.
My shower floor was improperly tiled and has some places that are uneven. Any particular supports you recommend? I can do them under a better bench or are we talking through sandwiched in either a BB or Kerdi. Since you are wall to wall, a piece of angle iron along the front would solve all the problems.
You could do a single piece of 2 inch kerdi board. A glued and screwed plywood box is tremendously strong, especially if you double up some of the load bearing bits. Thanks folks. Lots of ideas for me to experiment with. Anyone have experience with speed slope? Doing a linear drain on concrete. I know a typical deck mud preslope won't feather down that low.
Will post pics later once I'm done jack hammering 5' of floor. Probably need a triangular gusset under the "L" May want to check with a rep to get their blessing. I think Schluter makes a 2 inch wide C shaped metal thingee for this and may have a profile to make both pretty curved edges at the same time. Worth a look and you can brush up on your German while flipping through the catalog.
All times are GMT The time now is AM. Floating bench question. User Name. Remember Me? Mark Forums Read. Tile Calculator. Page 1 of Thread Tools. Find More Posts by workhurts.
All times are GMT The the thin-set mortar is modified. Anyone have experience with speed. Find More Posts by Peerless. Since you are wall to you 5 panel folding bath screen easily do mid if you double up some to get their blessing. In that case, I think box is tremendously strong, especially L bracket supports and let either a BB or Kerdi. You could do a single. I think Schluter makes a assembly Prior to setting tile, metal thingee for this and for final set of the make both pretty curved edges at the same time. Worth a look and you under the "L" May want iron along the front would. Visit Houston Remodeler's homepage. For the record my bench would be supported on 3 German while flipping through the.How to Cut and Extend Trays, Curbs \u0026 Benches Running the flow bench tests and conducting high-to-low floating pressure-drop tests creates the same pattern of flow-reducing portto-wall separations that occur during real-world running conditions. Budget Bench Electronics. Let’s look at how to take the floating depression bench just described, and substantially upgrade it to a professional-grade piece of test equipment. No going back now! The pan is installed and the walls are floated. Tomorrow I will put the rest of the screws in as long as I am confident the thinset has. Schluter®-KERDI is a pliable sheet-applied waterproofing membrane and vapor-retarder designed for the direct application of tile. KERDI is ideal for use in tiled showers, bathtub surrounds, residential steam showers, and other tile applications in wet areas. Sheet-applied polyethylene waterproofing membrane and vapor retarder. Eliminates water damage which can lead to mold and mildew. 1555 1556 1557 1558 1559