Today, the local dealer demo'd the Lash system. I thought the base of the clip (being arched) would screw with the thickness of the mortar. He showed how it pulls up tight to the wedges and leaves only the thickness of the clip base under the tile (about 1/8"). I don't know how that translates into the actual install though by these hands
What blew me away was that he attached 4 tiles together using the Lash and lifted the whole works. This showed how locked in everything became. I'm just not strong enough to do that with a bunch of 12x24's though
But I ain't the Expert ..just a novice who's just trying to gather all the facts and opinions ahead of job
..hey, this is a great discussion, it's really helpful!
The depth of the thinset all depends on how flat things are, as I said, both the tile and the floor. With a bigger tile, your first one can set the whole scheme for the entire floor - you want it flat, and a bubble level is useful for that. Then, depending on the floor, you use whatever depth of thinset you need to keep things all in one nice, flat plane with good coverage. There's a limit on how thick you can make thinset, and may need a medium bed mortar if things aren't too flat or there's variations in the floor, or the tile, like bows or cups, etc. Again, the goal is full coverage with the tiles all in one nice plane. One of the leveling systems can help get them in plane, but make sure the first one is level first!
Important note - I'm not a pro
Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013
As for thickness levels in thinset you will find that 12"x24" tile often require more than a 1/4" in thin set.
You can use a premium thin-set like the Ardex X32 and be able to take it up to 1" thick. This can be costly since the stuff about $55.00 per bag. I used 6 bags just setting my buddys floor.
$330.00 in thin-set sounds like a tone but you get a product that does not contribute to effloresence and a thin, medium and thick bed setting material.
I find the Ardex x32 really wears the buckets down - must be the heavier aggregate in the mix.
If you can believe it I left my wife's mixer at home and did not do my small load testing. Not back there till Monday. Had hope to share with you my findings this weekend.
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Well, with that x32 price you talked me out of it
I assume the bags of x5 I have around here will be ok for the Hardi fill, burn-in, and pebbles, but not good enough for the large format tiles? The supplier also has x77 on hand. What's your experience with it ..the Ardex site also yaks about that being the thinset of choice for LF tiles. Cheaper at ~$35 too.
And so the suggested size of trowel to go this job is...??
Your mixer experiment: no push at this end. I won't be attempting any Hardi filling and taping (let alone tiling) until we finish with drywalling ..and have settled in of our new family member. So probably in another week or so. As this is not a commercial job I gave up on any sort of strict timeline ..the beds are comfortable in the spare room
Last edited by Daler; 01-12-2013 at 12:56 PM.