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Unread 11-17-2004, 09:22 PM   #1
cjs
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Countertop edge?

I'm about to begin a project to re-tile a bathroom counter top using 6" x 6" porcelain tiles and to finish the edge with V-caps (2" x 6") . I plan to use two pieces of 23/32" exterior grade plywood for the base for the counter top and to install 1/4 inch hardibacker board on top of that. My question is, how should I finish the edge of the countertop ? Do I need to put backerboard on the vertical edge? Or is there some other way to ensure that the thinset will bond to that edge. I have some concern about the thinset bonding to the edge of the plywood.

Chris.
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Unread 11-17-2004, 10:18 PM   #2
Davy
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Hi Chris, I mud my c-tops but I would say most guys would nail a narrow piece of backerboard to the edge of the plywood. I normally use silicone on the front edge, two wide beads and thinset on the top.
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Unread 11-17-2004, 11:59 PM   #3
Shaughnn
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Don't forget to tape the joint where the horizontal deck meets the front apron.
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Unread 11-18-2004, 05:56 AM   #4
tileguytodd
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Davy...Silicone???
I know lots of guys do it that way.
I thinset mine and tape em I like full coverage under tham fragile tiles just in case the Husband does duck in time
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Unread 11-18-2004, 03:51 PM   #5
John Bridge
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Welcome aboard, Chris.

You're gonna get the boys to arguing.

I know a lot of guys who use caulking on the vertical part of the V-cap. If there's ever any movement the caps won't crack. Of course you don't have to worry about it with a mud job.
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Unread 11-18-2004, 09:38 PM   #6
Davy
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I remember a job years ago, all the v-cap cracked along the top edge. I mudded the deck and had metal edging around the countertop. The plywood was cut flush with the cabinet face and the carpenter nailed a 3/4 x 1 1/2 piece of pine on the front to nail the metal to. That pine swelled I guess causing them to crack. I replaced them using thinset on top and silicone on the face, no problems. I have done it this way many times since then without problems. With only plywood back there it might be fine using thinset on the face.
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Unread 11-18-2004, 10:19 PM   #7
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Every setter I know out this way sets V-cap with Mastic to allow a little flexibility and prevent the hip cracking Davy mentions.
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Unread 11-22-2004, 09:12 AM   #8
cjs
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Countertop edge?

Many thanks to all the responses to my question. It seems there are several ways to set V-cap tiles to a countertop edge. Which leads to some more questions for me

I was leaning toward attaching 1/4 inch hardie backerboard to the edge of the plywood base (2 x 3/4 exterior ply) but am a little concerned about screwing or nailing into the edge of the plywood and getiing it firmly attached.

Several other experts said that silicone or mastic was a way to attach the vertical edge of the V-cap and that this would allow some flexibility. Is that silicone the same stuff that I would caulk a bathtub to tile joint or some other specialized material?

And what is "mastic"? Is that something I can pick up at HD? And what brand is preferred?

Thanks again

Chris.
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