Lets kick the dead horse once more.

[JC]

1/2 exterior plywood with 3/8 thin-set and 6x6's with grout fully cured


or


1/4 thinset on underside of 1/2 CBU, then 3/8 thinset and 6x6's
with grout fully cured


(Simulating all the floor components above a standard 3/4 EGP.)




Which mock-up panel would do less flexing if it was spanning a 16o.c and wieght applied then measured from underneath for deflection...like a robinson tester would do?

[e3]

I think either one would work. Both systems would meet the requirments in "The Book" I might lean towards #1

[Bill Vincent]

So would I, but you already knew that! LOL

[John Bridge]

Would meet the requirements in WHICH book?

Looks to me like you're still bent on treating the tile and grout as a structure instead of a cladding, which it what it is.

[K_Tile]

Equal, they're both approved.

[e3]

tca has added new detail's to the 2003 book. 24" with 3/4" and 3/8 plus ANSI MEMBRANE> 3/4"OSB with 5/8 ply>even a 3/4" with 5/8ply - as MR. Gobis reported there are 14 new methods .

[John Bridge]

I must not be seeing something. Looks to me like JC is talking about 1/2 inch plywood with tile and grout over it.

[K_Tile]

John,

Dont forget to read b/n the parenthesis:
(Simulating all the floor components above a standard 3/4 EGP.)

Unless I'm mistaken

[Dave Gobis]

But Mr. Gobis did not vote for, nor does he like the OSB method, for the record. And if it is based on phenolic resin, never will.

[e3]

If only your vote counted for more then one . It would be a better world!! f-135 still gets me going!!!#$^%

[John Bridge]

Okay, I see the 3/4.

Now what's all this high-tech talk about voting rights. We handed that to the girls in 1920.