Replies

1. 
   Steve_Weeks | Dec 14, 2001 12:30am | #1

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   I've always felt that as much as possible in a house ought to be able to withstand an adult sitting or standing on it -- bound to happen some day. The wall mounted china lav won't make it, of course. In your case, I'd guess that you could glue the tiles to whatever substrate you have, but since it's a horizontal surface, I'd go for stiffness and solid adhesion -- remembering that adult about to climb on the countertop.

1. 
   Michael_Rimoldi | Dec 14, 2001 12:48am | #2

   *Steve, Good point. I know I won't be able to hover over each and every person that comes into the house and it doesn't work out for making friends when you beat someone for leaningsitting on your counters. I set a small piece today with Polyseamseal. If I can move it or pull it up tomorrow, I guess I'll have to go with the thinset method.Mike

1. 
   Scooter_ | Dec 14, 2001 02:00am | #3

   *One reason to use backerboard and thinset is expansion and contraction rates. Wood expands at a much different rate than marble. Your grout lines may crack, depending on your climate.CBU's on the other hand expand and contract at a rate much closer to tile and stone, and there is less chance of failing joint lines.I think the tiles will stay stuck no matter what you use, but I would be concerned with the expansion issues. Usually stone or tile on wood, I would recommend an epoxy type thinset. It adheres better than thinset to the wood.

1. 
   Luka_ | Dec 14, 2001 06:24am | #4

   *Not only sat or stood on, but once the weight is there, what about a lot of sudden 'earthquake like' activity ?; )

1. 
   Michael_Rimoldi | Dec 14, 2001 07:12am | #5

   *Luka, Oh my!Mike

2. 
   Wayne_Law | Dec 15, 2001 01:06am | #6

   *Green marble is unique in that it cannot be set with a water based adhesive. Don't ask me why, but that's what several tile books have said. Contact a reliable suppler who knows tile setting and be sure to say specifically you have green marble.

2. 
   Michael_Rimoldi | Dec 15, 2001 01:06am | #7

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   Hey guys,

   I'm using some green marble tiles (12" x 12") as a counter top in the cabinetry in my denoffice. It will always be a dry surface (no water lines even in the room) and am wondering if I need to go all the way and use backerboard and thinset to adhere these in place or will some adhesive work?

   I know many petro. based adhesives will bleed thru marble (especially green) but what about water-based ones?

   Or should I do the thinset mortar route even though its the most time consuming?

   Not looking to cut corners, just do it as easily as possible and efficiently as I'm trying to get this house done!!!

   Mike