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Ross (207.88.96.48)

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Posted on Thursday, May 02, 2002 - 11:33 am:   

I was in Home Depot last night checking out some tile. My plan was to use ceramic tile in the bath and galley, but I came across some granite and marble tile. Has anyone ever used granite or marble? Is it more prone to cracking due to flex than ceramic?

Thanks...>Ross
DaveD (216.18.113.69)

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Posted on Thursday, May 02, 2002 - 1:17 pm:   

I'd be more concerned about someone taking a fall in a moving vehicle due to the surface of the tile being too smooth.
Ross (207.88.96.48)

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Posted on Thursday, May 02, 2002 - 1:26 pm:   

I had thought of that. That granite is pretty slick. It sure looks nice though.

Ross
DaveD (216.18.113.69)

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Posted on Thursday, May 02, 2002 - 1:44 pm:   

True enough

DaveD
Jim Ashworth (Jimnh) (172.141.53.87)

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Posted on Thursday, May 02, 2002 - 5:48 pm:   

I have tiled every shower in every conversion I have done. Never a problem with it. I have used marble on the floor in two conversions and although it is slippery when wet, that is what bath mats are for. There is nothing inherently different using marble/granite vs tile. Use a thinset with a latex admixture. DO NOT USE THE JUNK thinset from Home Depot. Been there, Done that!!!!. I usually use an admixture with the grout to ensure adhesion. Makes it a real pain to use but doesn't fail. Marble needs to be sealed after installation, especially in the kitchen, just in case a spill of red wine happens. DO NOT USE HOME DEPOT JUNK to seal the marble. There is real sealer out there, it just costs $60 per pint. Cheap compared to the $1000 you paid for the floor.

Jim
Jim Ashworth (Jimnh) (172.141.53.87)

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Posted on Thursday, May 02, 2002 - 5:59 pm:   

Addendum to previous post: The shower must be framed properly so that the corner can "float" free of the bus exterior wall for at least one foot. If this is not done, the tile joint will crack at the corner that joins with the outside wall. This is because, in the sunlight, the bus shell will "grow" proportionately relative to the heat. It can move the outside shower wall about 1/8" if it is attached to the shell.

Jim
R.C.Bishop (128.123.88.15)

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Posted on Thursday, May 02, 2002 - 11:44 pm:   

Jim..while I am comfortable with your english, I don't understand exactly what you mean by floating free for a foot......that's a long way.

??? (sorry, must be maturity setting in)
Thanx, RCB
Stephen Fessenden (Sffess) (67.226.254.234)

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Posted on Friday, May 03, 2002 - 12:27 am:   

Most marble is polished because people want it that way. I have some salvage marble in my house that is not polished, more like a flagstone surface to walk on, but looks like marble and it is.
Jim Ashworth (Jimnh) (172.141.113.138)

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Posted on Friday, May 03, 2002 - 8:52 am:   

Explanation of "floating" the corner. Along the outside wall of the bus, studs are secured to the bus wall for screwing the tile backer board on and then supporting the tile. On the shower wall perpindicular to that there are more studs connected at the floor and ceiling. Normally, where these two walls meet, one of the corner studs is anchored to the ceiling of the bus and one to the shell wall. When the sun heats the shell, the outside wall will move as the shell expands, taking that stud with it. Enough to open a 1/8" gap in the corner. What I do to eliminate this movement is to anchor both corner studs to each other and the perpendicular wall with no connection to the outside bus wall. This allows the shell to move without opening the corner. The next outside wall stud is far enough away, (about a foot) so that the tile can flex and not have a crack open up. It may crack the grout but it is so little that you can't see it. Gosh, pictures really are worth 1000 words, but I don't have one.

Jim
R.C.Bishop (128.123.88.35)

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Posted on Friday, May 03, 2002 - 10:25 am:   

Thanx, Jim. Got it. Good explanation.
RCB

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